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1024src_fm_fc_ms_ff_method2testcases_v0

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### Question: QualifiedName implements Comparable<QualifiedName>, Serializable { public static QualifiedName fromQN( String qualifiedName ) { NullArgumentException.validateNotEmpty( "qualifiedName", qualifiedName ); int idx = qualifiedName.lastIndexOf( ":" ); if( idx == -1 ) { throw new IllegalArgumentException( "Name '" + qualifiedName + "' is not a qualified name" ); } final String type = qualifiedName.substring( 0, idx ); final String name = qualifiedName.substring( idx + 1 ); return new QualifiedName( TypeName.nameOf( type ), name ); } QualifiedName( TypeName typeName, String name ); static QualifiedName fromAccessor( AccessibleObject method ); static QualifiedName fromClass( Class type, String name ); static QualifiedName fromName( String type, String name ); static QualifiedName fromQN( String qualifiedName ); String type(); String name(); String toURI(); String toNamespace(); @Override String toString(); @Override boolean equals( Object o ); @Override int hashCode(); int compareTo( QualifiedName other ); }### Answer: @Test( expected = NullArgumentException.class ) public void nonNullArguments4() { QualifiedName.fromQN( null ); }
### Question: QualifiedName implements Comparable<QualifiedName>, Serializable { public static QualifiedName fromAccessor( AccessibleObject method ) { NullArgumentException.validateNotNull( "method", method ); return fromClass( ((Member)method).getDeclaringClass(), ((Member)method).getName() ); } QualifiedName( TypeName typeName, String name ); static QualifiedName fromAccessor( AccessibleObject method ); static QualifiedName fromClass( Class type, String name ); static QualifiedName fromName( String type, String name ); static QualifiedName fromQN( String qualifiedName ); String type(); String name(); String toURI(); String toNamespace(); @Override String toString(); @Override boolean equals( Object o ); @Override int hashCode(); int compareTo( QualifiedName other ); }### Answer: @Test( expected = NullArgumentException.class ) public void nonNullArguments5() { QualifiedName.fromAccessor( null ); }
### Question: QualifiedName implements Comparable<QualifiedName>, Serializable { public static QualifiedName fromClass( Class type, String name ) { return new QualifiedName( TypeName.nameOf( type ), name ); } QualifiedName( TypeName typeName, String name ); static QualifiedName fromAccessor( AccessibleObject method ); static QualifiedName fromClass( Class type, String name ); static QualifiedName fromName( String type, String name ); static QualifiedName fromQN( String qualifiedName ); String type(); String name(); String toURI(); String toNamespace(); @Override String toString(); @Override boolean equals( Object o ); @Override int hashCode(); int compareTo( QualifiedName other ); }### Answer: @Test( expected = NullArgumentException.class ) public void nonNullArguments6() { QualifiedName.fromClass( null, "satisfiedBy" ); } @Test( expected = NullArgumentException.class ) public void nonNullArguments7() { QualifiedName.fromClass( null, null ); }
### Question: ClassScanner { public static Iterable<Class<?>> getClasses( final Class<?> seedClass ) { CodeSource codeSource = seedClass.getProtectionDomain().getCodeSource(); if( codeSource == null ) { return Iterables.empty(); } URL location = codeSource.getLocation(); if( !location.getProtocol().equals( "file" ) ) { throw new IllegalArgumentException( "Can only enumerate classes from file system locations. URL is:" + location ); } final File file; try { file = new File( location.toURI().getPath() ); } catch( URISyntaxException e ) { throw new IllegalArgumentException( "The file location of codebase is invalid. Can not convert to URI. URL is:" + location ); } if( file.getName().endsWith( ".jar" ) ) { try { final String packageName = seedClass.getPackage().getName().replace( '.', '/' ); JarFile jarFile = new JarFile( file ); Iterable<JarEntry> entries = Iterables.iterable( jarFile.entries() ); try { return Iterables.toList( filter( new ValidClass(), map( new Function<JarEntry, Class<?>>() { public Class map( JarEntry jarEntry ) { String name = jarEntry.getName(); name = name.substring( 0, name.length() - 6 ); name = name.replace( '/', '.' ); try { return seedClass.getClassLoader().loadClass( name ); } catch( ClassNotFoundException e ) { return null; } } } , filter( new Specification<JarEntry>() { public boolean satisfiedBy( JarEntry jarEntry ) { return jarEntry.getName() .startsWith( packageName ) && jarEntry.getName() .endsWith( ".class" ); } }, entries ) ) ) ); } finally { jarFile.close(); } } catch( IOException e ) { throw new IllegalArgumentException( "Could not open jar file " + file, e ); } } else { final File path = new File( file, seedClass.getPackage().getName().replace( '.', File.separatorChar ) ); Iterable<File> files = getFiles( path, new Specification<File>() { public boolean satisfiedBy( File file ) { return file.getName().endsWith( ".class" ); } } ); return filter( new ValidClass(), map( new Function<File, Class<?>>() { public Class<?> map( File f ) { String fileName = f.getAbsolutePath().substring( file.toString().length() + 1 ); fileName = fileName.replace( File.separatorChar, '.' ) .substring( 0, fileName.length() - 6 ); try { return seedClass.getClassLoader().loadClass( fileName ); } catch( ClassNotFoundException e ) { return null; } } }, files ) ); } } static Iterable<Class<?>> getClasses( final Class<?> seedClass ); static Specification<Class<?>> matches( String regex ); }### Answer: @Test public void testClassScannerJar() { Assert.assertEquals( 121, Iterables.count( getClasses( Test.class ) )); }
### Question: Iterables { public static <T> Iterable<T> constant( final T item ) { return new Iterable<T>() { @Override public Iterator<T> iterator() { return new Iterator<T>() { @Override public boolean hasNext() { return true; } @Override public T next() { return item; } @Override public void remove() { } }; } }; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testConstant() { String str = ""; for( String string : Iterables.limit( 3, Iterables.constant( "123" ) ) ) { str += string; } assertThat( str, CoreMatchers.equalTo( "123123123" ) ); }
### Question: Iterables { public static <T> Iterable<T> unique( final Iterable<T> iterable) { return new Iterable<T>() { @Override public Iterator<T> iterator() { final Iterator<T> iterator = iterable.iterator(); return new Iterator<T>() { Set<T> items = new HashSet<T>(); T nextItem; @Override public boolean hasNext() { while(iterator.hasNext()) { nextItem = iterator.next(); if (items.add( nextItem )) return true; } return false; } @Override public T next() { if (nextItem == null && !hasNext()) throw new NoSuchElementException( ); return nextItem; } @Override public void remove() { } }; } }; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testUnique() { String str = ""; for( String string : Iterables.unique( Iterables.flatten( numbers, numbers, numbers ) )) { str += string; } assertThat( str, CoreMatchers.equalTo( "123" ) ); }
### Question: Iterables { public static <T, C extends Collection<T>> C addAll( C collection, Iterable<? extends T> iterable ) { for( T item : iterable ) { collection.add( item ); } return collection; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testAddAll() { List<String> strings = Iterables.toList( numbers ); assertThat( strings.toString(), equalTo( "[1, 2, 3]" ) ); assertThat( Iterables.toList( numberLongs ).toString(), equalTo( "[1, 2, 3]" ) ); }
### Question: Iterables { public static long count( Iterable<?> iterable ) { long c = 0; Iterator<?> iterator = iterable.iterator(); while( iterator.hasNext() ) { iterator.next(); c++; } return c; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testCount() { assertThat( Iterables.count( numbers ), equalTo( 3L ) ); }
### Question: Iterables { public static <X> Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ) { return new FilterIterable<X>( i, specification ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testFilter() { assertThat( Iterables.first( Iterables.filter( Specifications.in( "2" ), numbers ) ), equalTo( "2" ) ); }
### Question: Iterables { public static <X> X first( Iterable<? extends X> i ) { Iterator<? extends X> iter = i.iterator(); if( iter.hasNext() ) { return iter.next(); } else { return null; } } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testFirst() { assertThat( Iterables.first( numbers ), equalTo( "1" ) ); assertThat( Iterables.first( Collections.<Object>emptyList() ), CoreMatchers.<Object>nullValue() ); }
### Question: Iterables { public static <X> X last( Iterable<? extends X> i ) { Iterator<? extends X> iter = i.iterator(); X item = null; while( iter.hasNext() ) item = iter.next(); return item; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testLast() { assertThat( Iterables.last( numbers ), equalTo( "3" ) ); assertThat( Iterables.last( Collections.<Object>emptyList() ), CoreMatchers.<Object>nullValue() ); }
### Question: Iterables { public static <FROM, TO> TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ) { return last( map( function, i ) ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testFolding() { assertThat( Iterables.fold( new Function<Integer, Integer>() { int sum = 0; @Override public Integer map( Integer number ) { return sum += number; } }, numberIntegers ), equalTo( 6 ) ); }
### Question: Iterables { public static <T, C extends T> Iterable<T> append( final C item, final Iterable<T> iterable ) { return new Iterable<T>() { @Override public Iterator<T> iterator() { final Iterator<T> iterator = iterable.iterator(); return new Iterator<T>() { T last = item; @Override public boolean hasNext() { if(iterator.hasNext()) { return true; } else { return last != null; } } @Override public T next() { if (iterator.hasNext() ) return iterator.next(); else try { return last; } finally { last = null; } } @Override public void remove() { } }; } }; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testAppend() { assertThat( Iterables.toList(Iterables.append( "C", Iterables.iterable( "A","B" ) )).toString(), equalTo( "[A, B, C]" ) ); }
### Question: Iterables { public static <X> Iterable<X> reverse( Iterable<X> iterable ) { List<X> list = toList( iterable ); Collections.reverse( list ); return list; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testReverse() { assertThat( Iterables.reverse( numbers ).toString(), equalTo( "[3, 2, 1]" ) ); assertThat( Iterables.reverse( Collections.<Object>emptyList() ), equalTo( (Object) Collections.<Object>emptyList() ) ); }
### Question: Iterables { public static <T> boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ) { boolean result = false; for( T item : iterable ) { if( specification.satisfiedBy( item ) ) { result = true; break; } } return result; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testMatchesAny() { assertThat( Iterables.matchesAny( Specifications.in( "2" ), numbers ), equalTo( true ) ); assertThat( Iterables.matchesAny( Specifications.in( "4" ), numbers ), equalTo( false ) ); }
### Question: Iterables { public static <T> boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ) { boolean result = true; for( T item : iterable ) { if( !specification.satisfiedBy( item ) ) { result = false; } } return result; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testMatchesAll() { assertThat( Iterables.matchesAll( Specifications.in( "1", "2", "3" ), numbers ), equalTo( true ) ); assertThat( Iterables.matchesAll( Specifications.in( "2", "3", "4" ), numbers ), equalTo( false ) ); }
### Question: Iterables { public static <X, I extends Iterable<? extends X>> Iterable<X> flatten( I... multiIterator ) { return new FlattenIterable<X, I>( Arrays.asList( multiIterator ) ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testFlatten() { assertThat( Iterables.toList( Iterables.flatten( numbers, numbers ) ) .toString(), equalTo( "[1, 2, 3, 1, 2, 3]" ) ); Iterable<? extends Number> flatten = Iterables.flatten( numberIntegers, numberLongs ); assertThat( Iterables.toList( flatten ) .toString(), equalTo( "[1, 2, 3, 1, 2, 3]" ) ); }
### Question: Iterables { public static <X, I extends Iterable<? extends X>> Iterable<X> flattenIterables( Iterable<I> multiIterator ) { return new FlattenIterable<X, I>( multiIterator ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testFlattenIterables() { Iterable<List<String>> iterable = Iterables.iterable( numbers, numbers ); assertThat( Iterables.toList( Iterables.flattenIterables( iterable ) ) .toString(), equalTo( "[1, 2, 3, 1, 2, 3]" ) ); }
### Question: Iterables { public static <T> Iterable<T> mix( final Iterable<T>... iterables ) { return new Iterable<T>() { @Override public Iterator<T> iterator() { final Iterable<Iterator<T>> iterators = toList(map( new Function<Iterable<T>, Iterator<T>>() { @Override public Iterator<T> map( Iterable<T> iterable ) { return iterable.iterator(); } }, Iterables.iterable( iterables) )); return new Iterator<T>() { Iterator<Iterator<T>> iterator; Iterator<T> iter; @Override public boolean hasNext() { for( Iterator<T> iterator : iterators ) { if (iterator.hasNext()) { return true; } } return false; } @Override public T next() { if (iterator == null) { iterator = iterators.iterator(); } while (iterator.hasNext()) { iter = iterator.next(); if (iter.hasNext()) return iter.next(); } iterator = null; return next(); } @Override public void remove() { if (iter != null) iter.remove(); } }; } }; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testMix() { assertThat( Iterables.toList(Iterables.mix( Iterables.iterable( "A","B","C" ),Iterables.iterable( "1","2","3","4","5" ),Iterables.iterable( "X","Y","Z" ) )).toString(), equalTo( "[A, 1, X, B, 2, Y, C, 3, Z, 4, 5]" )); }
### Question: Iterables { public static <FROM, TO> Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ) { return new MapIterable<FROM, TO>( from, function ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testMap() { assertThat( Iterables.toList( Iterables.map( new Function<String, String>() { public String map( String s ) { return s + s; } }, numbers ) ).toString(), equalTo( "[11, 22, 33]" ) ); Iterable<List<String>> numberIterable = Iterables.iterable( numbers, numbers, numbers ); assertThat( Iterables.toList( Iterables.map( new Function<Collection, Integer>() { @Override public Integer map( Collection collection ) { return collection.size(); } }, numberIterable ) ).toString(), equalTo( "[3, 3, 3]" ) ); }
### Question: Iterables { public static <T, C> Iterable<T> cast( Iterable<C> iterable ) { Iterable iter = iterable; return iter; } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testCast() { Iterable<Long> values = numberLongs; Iterable<Number> numbers = Iterables.cast(values); }
### Question: Iterables { public static <T> Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ) { final MessageFormat msgFormat = new MessageFormat( format ); return map( new Function<T, T>() { @Override public T map( T t ) { if( functions.length == 0 ) debugLogger.info( msgFormat.format( new Object[]{t} ) ); else { String[] mapped = new String[functions.length]; for( int i = 0; i < functions.length; i++ ) { Function<T, String> function = functions[i]; mapped[i] = function.map( t ); debugLogger.info( msgFormat.format( mapped ) ); } } return t; } }, iterable ); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testDebug() { assertThat( Iterables.first( Iterables.debug( "Filtered number:{0}", Iterables.filter( Specifications.in( "2" ), Iterables.debug( "Number:{0}", numbers ) ) ) ), equalTo( "2" ) ); }
### Question: Iterables { public static <T> Iterable<T> cache(Iterable<T> iterable) { return new CacheIterable<T>(iterable); } static Iterable<T> empty(); static Iterable<T> constant( final T item ); static Iterable<T> limit( final int limitItems, final Iterable<T> iterable ); static Iterable<T> unique( final Iterable<T> iterable); static C addAll( C collection, Iterable<? extends T> iterable ); static long count( Iterable<?> iterable ); static Iterable<X> filter( Specification<? super X> specification, Iterable<X> i ); static X first( Iterable<? extends X> i ); static X single( Iterable<? extends X> i ); static Iterable<X> skip( final int skip, final Iterable<X> iterable); static X last( Iterable<? extends X> i ); static Iterable<X> reverse( Iterable<X> iterable ); static boolean matchesAny( Specification<? super T> specification, Iterable<T> iterable ); static boolean matchesAll( Specification<? super T> specification, Iterable<T> iterable ); static Iterable<X> flatten( I... multiIterator ); static Iterable<X> flattenIterables( Iterable<I> multiIterator ); static Iterable<T> mix( final Iterable<T>... iterables ); static Iterable<TO> map( Function<? super FROM, TO> function, Iterable<FROM> from ); static Iterable<T> iterable( Enumeration<T> enumeration ); static Iterable<T> iterable( C... items ); static Iterable<T> cast( Iterable<C> iterable ); static Function<FROM, TO> cast(); static TO fold( Function<? super FROM, TO> function, Iterable<? extends FROM> i ); static Iterable<T> prepend( final C item, final Iterable<T> iterable ); static Iterable<T> append( final C item, final Iterable<T> iterable ); static Iterable<T> debug( String format, final Iterable<T> iterable, final Function<T, String>... functions ); static Iterable<T> cache(Iterable<T> iterable); static List<T> toList( Iterable<T> iterable ); static Object[] toArray(Iterable<Object> iterable); static T[] toArray(Class<T> componentType, Iterable<T> iterable); }### Answer: @Test public void testCache() { final int[] count = new int[1]; Iterable<String> b = Iterables.cache(Iterables.filter( Specifications.and( new Specification<String>() { @Override public boolean satisfiedBy( String item ) { count[0] = count[0]+1; return true; } }, Specifications.in( "B" )), Iterables.iterable( "A", "B", "C" ))); assertThat( count[0], equalTo( 0 ) ); Iterables.toList( b ); assertThat( count[0], equalTo( 3 ) ); Iterables.toList( b ); assertThat( count[0], equalTo( 3 ) ); }
### Question: Specifications { public static <T> Specification<T> TRUE() { return new Specification<T>() { public boolean satisfiedBy( T instance ) { return true; } }; } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testTRUE() { Assert.assertThat( Specifications.<Object>TRUE().satisfiedBy( new Object() ), equalTo( true ) ); }
### Question: Specifications { public static <T> Specification<T> not( final Specification<T> specification ) { return new Specification<T>() { public boolean satisfiedBy( T instance ) { return !specification.satisfiedBy( instance ); } }; } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testNot() { Assert.assertThat( Specifications.not( Specifications.<Object>TRUE() ) .satisfiedBy( new Object() ), equalTo( false ) ); }
### Question: Specifications { public static <T> AndSpecification<T> and( final Specification<T>... specifications ) { return and( Iterables.iterable( specifications )); } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testAnd() { Specification<Object> trueSpec = Specifications.<Object>TRUE(); Specification<Object> falseSpec = Specifications.not( Specifications.<Object>TRUE() ); Assert.assertThat( Specifications.and( falseSpec, falseSpec ).satisfiedBy( new Object() ), equalTo( false ) ); Assert.assertThat( Specifications.and( trueSpec, falseSpec ).satisfiedBy( new Object() ), equalTo( false ) ); Assert.assertThat( Specifications.and( falseSpec, trueSpec ).satisfiedBy( new Object() ), equalTo( false ) ); Assert.assertThat( Specifications.and( trueSpec, trueSpec ).satisfiedBy( new Object() ), equalTo( true ) ); }
### Question: Specifications { public static <T> OrSpecification<T> or( final Specification<T>... specifications ) { return or( Iterables.iterable( specifications ) ); } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testOr() { Specification<Object> trueSpec = Specifications.<Object>TRUE(); Specification<Object> falseSpec = Specifications.not( Specifications.<Object>TRUE() ); Assert.assertThat( Specifications.or( falseSpec, falseSpec ).satisfiedBy( new Object() ), equalTo( false ) ); Assert.assertThat( Specifications.or( trueSpec, falseSpec ).satisfiedBy( new Object() ), equalTo( true ) ); Assert.assertThat( Specifications.or( falseSpec, trueSpec ).satisfiedBy( new Object() ), equalTo( true ) ); Assert.assertThat( Specifications.or( trueSpec, trueSpec ).satisfiedBy( new Object() ), equalTo( true ) ); }
### Question: Specifications { public static <T> Specification<T> in( final T... allowed ) { return in( Iterables.iterable( allowed ) ); } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testIn() { Assert.assertThat( Specifications.in( "1", "2", "3" ).satisfiedBy( "2" ), equalTo( true ) ); Assert.assertThat( Specifications.in( "1", "2", "3" ).satisfiedBy( "4" ), equalTo( false ) ); }
### Question: Specifications { public static <FROM,TO> Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification) { return new Specification<FROM>() { @Override public boolean satisfiedBy( FROM item ) { return specification.satisfiedBy( function.map( item ) ); } }; } static Specification<T> TRUE(); static Specification<T> not( final Specification<T> specification ); static AndSpecification<T> and( final Specification<T>... specifications ); static AndSpecification<T> and( final Iterable<Specification<T>> specifications ); static OrSpecification<T> or( final Specification<T>... specifications ); static OrSpecification<T> or( final Iterable<Specification<T>> specifications ); static Specification<T> in( final T... allowed ); static Specification<T> in( final Iterable<T> allowed ); static Specification<T> notNull(); static Specification<FROM> translate( final Function<FROM,TO> function, final Specification<? super TO> specification); }### Answer: @Test public void testTranslate() { Function<Object, String> stringifier = new Function<Object, String>() { @Override public String map( Object s ) { return s.toString(); } }; Assert.assertTrue( Specifications.translate( stringifier, Specifications.in( "3" ) ).satisfiedBy( 3L ) ); }
### Question: Functions { public static <A,B,C> Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose() { return new Function2<Function<? super B, C>, Function<A, B>, Function<A, C>>() { @Override public Function<A, C> map( Function<? super B, C> bcFunction, Function<A, B> abFunction ) { return compose( bcFunction, abFunction ); } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testCompose() { assertThat( Functions.<Object, String, Integer>compose().map( length, stringifier ).map( 12345L ), equalTo( 5 ) ); assertThat( compose( length, stringifier ).map( 12345L ), equalTo( 5 ) ); }
### Question: Functions { public static <FROM,TO> Function<FROM,TO> fromMap( final Map<FROM,TO> map) { return new Function<FROM,TO>() { @Override public TO map( FROM from ) { return map.get( from ); } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testFromMap() { Map<String,String> map = new HashMap<String, String>( ); map.put( "A","1" ); map.put( "B","2" ); map.put( "C","3" ); assertThat( Iterables.toList( Iterables.filter( Specifications.notNull(), Iterables.map( Functions.fromMap( map ), Iterables.iterable( "A", "B", "D" ) ) ) ).toString(), equalTo( "[1, 2]" )); }
### Question: Functions { public static <T> Function<T,T> withDefault( final T defaultValue) { return new Function<T, T>() { @Override public T map( T from ) { if (from == null) return defaultValue; else return from; } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testWithDefault() { assertThat( Iterables.toList( Iterables.map( Functions.withDefault( "DEFAULT" ), Iterables.iterable( "123", null, "456" ) ) ).toString(), equalTo( "[123, DEFAULT, 456]" ) ); }
### Question: Functions { public static final Function<Number, Long> longSum() { return new Function<Number, Long>() { long sum; @Override public Long map( Number number ) { sum += number.longValue(); return sum; } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testLongSum() { assertThat( last( map( longSum(), iterable( 1, 2L, 3F, 4D ) ) ), equalTo( 10L ) ); }
### Question: Functions { public static Function<Number, Integer> intSum() { return new Function<Number, Integer>() { int sum; @Override public Integer map( Number number ) { sum += number.intValue(); return sum; } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testIntSum() { assertThat( last( map( intSum(), iterable( 1, 2L, 3F, 4D ) ) ), equalTo( 10 ) ); }
### Question: Functions { public static <T> Function<T, Integer> count( final Specification<T> specification) { return new Function<T, Integer>() { int count; @Override public Integer map( T item ) { if (specification.satisfiedBy( item )) count++; return count; } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testCount() { assertThat( last( map( count( in( "X" ) ), iterable( "X","Y","X","X","Y" ) ) ), equalTo( 3 ) ); }
### Question: Functions { public static <T> Function<T, Integer> indexOf( final Specification<T> specification) { return new Function<T, Integer>() { int index = -1; int current = 0; @Override public Integer map( T item ) { if (index == -1 && specification.satisfiedBy( item )) index = current; current++; return index; } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testIndexOf() { assertThat( last( map( indexOf( in( "D" ) ), iterable( "A","B","C","D","D" ) ) ), equalTo( 3 ) ); } @Test public void testIndexOf2() { assertThat( indexOf( "D", iterable( "A","B","C","D","D" )), equalTo( 3 ) ); }
### Question: Functions { public static <T> Comparator<T> comparator( final Function<T, Comparable> comparableFunction) { return new Comparator<T>() { Map<T, Comparable> compareKeys = new HashMap<T, Comparable>(); public int compare( T o1, T o2 ) { Comparable key1 = compareKeys.get( o1 ); if (key1 == null) { key1 = comparableFunction.map( o1 ); compareKeys.put(o1, key1); } Comparable key2 = compareKeys.get( o2 ); if (key2 == null) { key2 = comparableFunction.map( o2 ); compareKeys.put(o2, key2); } return key1.compareTo( key2 ); } }; } static Function2<Function<? super B,C>,Function<A,B>, Function<A,C>> compose(); static Function<FROM,TO> compose( final Function<? super MIDDLE,TO> outer, final Function<FROM,MIDDLE> inner); static Function<FROM,TO> identity(); static Function<FROM,TO> fromMap( final Map<FROM,TO> map); static Function<T,T> withDefault( final T defaultValue); static final Function<Number, Long> longSum(); static Function<Number, Integer> intSum(); static Function<T, Integer> count( final Specification<T> specification); static Function<T, Integer> indexOf( final Specification<T> specification); static int indexOf(T item, Iterable<T> iterable); static Function<T, T> filteredMap( final Specification<T> specification, final Function<T, T> function); static Comparator<T> comparator( final Function<T, Comparable> comparableFunction); }### Answer: @Test public void testComparator() { Comparator<Integer> comparator = Functions.comparator( new Function<Integer, Comparable>() { @Override public Comparable map( Integer integer ) { return integer.toString(); } } ); List<Integer> integers = Iterables.toList( Iterables.iterable( 1, 5, 3, 6, 8 ) ); Collections.sort( integers, comparator ); assertThat( integers.toString(), equalTo( "[1, 3, 5, 6, 8]" )); }
### Question: IterableQuerySource implements QuerySource { @Override public <T> Iterator<T> iterator( Class<T> resultType, Specification<Composite> whereClause, Iterable<OrderBy> orderBySegments, Integer firstResult, Integer maxResults, Map<String, Object> variables ) { return list(resultType, whereClause, orderBySegments, firstResult, maxResults, variables).iterator(); } IterableQuerySource( final Iterable iterable ); @Override T find( Class<T> resultType, Specification<Composite> whereClause, Iterable<OrderBy> orderBySegments, Integer firstResult, Integer maxResults, Map<String, Object> variables ); @Override long count( Class<T> resultType, Specification<Composite> whereClause, Iterable<OrderBy> orderBySegments, Integer firstResult, Integer maxResults, Map<String, Object> variables ); @Override Iterator<T> iterator( Class<T> resultType, Specification<Composite> whereClause, Iterable<OrderBy> orderBySegments, Integer firstResult, Integer maxResults, Map<String, Object> variables ); }### Answer: @Test public void givenManyAssociationContainsQueryWhenExecutedThenReturnCorrect() throws EntityFinderException { QueryBuilder<Person> qb = qbf.newQueryBuilder( Person.class ); Person person = templateFor( Person.class ); Domain value = Network.domains().iterator().next(); Query<Person> query = qb.where( QueryExpressions.contains( person.interests(), value ) ) .newQuery( Network.persons() ); for (Person person1 : query) { System.out.println( person1.name() ); } verifyOrderedResults( query, "Joe Doe", "Vivian Smith" ); }
### Question: UsageGraph { public List<K> resolveOrder() throws BindingException { if( resolved == null ) { buildUsageGraph(); resolved = new LinkedList<K>(); for( K item : data ) { int pos = resolved.size(); for( K entry : resolved ) { if( transitiveUse( entry, item ) ) { pos = resolved.indexOf( entry ); break; } } resolved.add( pos, item ); } } return resolved; } UsageGraph( Collection<K> data, Use<K> use, boolean allowCyclic ); boolean transitiveUse( K source, K other ); void invalidate(); List<K> resolveOrder(); }### Answer: @Test public void whenAskingForDependencyGivenThatGraphContainsCyclicDepThenDetectTheError() throws Exception { Thing thing1 = new Thing(); Thing thing2 = new Thing(); Thing thing3 = new Thing(); Thing thing4 = new Thing(); Thing thing5 = new Thing(); Thing thing6 = new Thing(); Thing thing7 = new Thing(); thing1.uses.add( thing3 ); thing2.uses.add( thing3 ); thing3.uses.add( thing4 ); thing4.uses.add( thing5 ); thing5.uses.add( thing1 ); thing1.uses.add( thing6 ); thing7.uses.add( thing1 ); thing7.uses.add( thing2 ); thing7.uses.add( thing4 ); List<Thing> data = new ArrayList<Thing>(); data.add( thing7 ); data.add( thing4 ); data.add( thing1 ); data.add( thing3 ); data.add( thing6 ); data.add( thing5 ); data.add( thing2 ); randomize( data ); UsageGraph<Thing> deps = new UsageGraph<Thing>( data, new Userator(), false ); try { List<Thing> resolved = deps.resolveOrder(); Assert.fail( "Cyclic Dependency Not Detected." ); } catch( BindingException e ) { } }
### Question: JRubyMixin implements InvocationHandler, ScriptReloadable { public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable { try { Class declaringClass = method.getDeclaringClass(); IRubyObject rubyObject = rubyObjects.get( declaringClass ); if( rubyObject == null ) { try { rubyObject = runtime.evalScriptlet( declaringClass.getSimpleName() + ".new()" ); } catch( RaiseException e ) { if( e.getException() instanceof RubyNameError ) { String script = getFunction( method ); runtime.evalScriptlet( script ); rubyObject = runtime.evalScriptlet( declaringClass.getSimpleName() + ".new()" ); } else { throw e; } } IRubyObject meRuby = JavaEmbedUtils.javaToRuby( runtime, me ); RubyClass rubyClass = meRuby.getMetaClass(); if( !rubyClass.isFrozen() ) { SetterDynamicMethod setter = new SetterDynamicMethod( runtime.getObjectSpaceModule(), Visibility.PUBLIC, null ); GetterDynamicMethod getter = new GetterDynamicMethod( runtime.getObjectSpaceModule(), Visibility.PUBLIC, null ); Method[] compositeMethods = me.getClass().getInterfaces()[ 0 ].getMethods(); for( Method compositeMethod : compositeMethods ) { if( Property.class.isAssignableFrom( compositeMethod.getReturnType() ) ) { rubyClass.addMethod( compositeMethod.getName() + "=", setter ); rubyClass.addMethod( compositeMethod.getName(), getter ); } } rubyClass.freeze( ThreadContext.newContext( runtime ) ); } RubyObjectAdapter rubyObjectAdapter = JavaEmbedUtils.newObjectAdapter(); rubyObjectAdapter.setInstanceVariable( rubyObject, "@this", meRuby ); rubyObjects.put( declaringClass, rubyObject ); } IRubyObject rubyResult; if( args != null ) { IRubyObject[] rubyArgs = new IRubyObject[args.length]; for( int i = 0; i < args.length; i++ ) { Object arg = args[ i ]; rubyArgs[ i ] = JavaEmbedUtils.javaToRuby( runtime, arg ); } rubyResult = rubyObject.callMethod( runtime.getCurrentContext(), method.getName(), rubyArgs ); } else { rubyResult = rubyObject.callMethod( runtime.getCurrentContext(), method.getName() ); } Object result = JavaEmbedUtils.rubyToJava( runtime, rubyResult, method.getReturnType() ); return result; } catch( Exception e ) { e.printStackTrace(); throw e; } } Object invoke( Object proxy, Method method, Object[] args ); void reloadScripts(); }### Answer: @Test public void testInvoke() throws Throwable { JRubyComposite domain = module.newTransientBuilder( JRubyComposite.class ).newInstance(); Assert.assertEquals( "do1() in Ruby mixin.", domain.do1() ); }
### Question: GroovyMixin implements InvocationHandler { public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable { final FunctionResource groovySource = getFunctionResource( method ); if( groovySource != null ) { if( groovySource.script ) { return invokeAsObject( method, args, groovySource.url ); } return invokeAsScript( method, args, groovySource.url ); } throw new RuntimeException( "Internal error: Mixin invoked even if it does not apply" ); } GroovyMixin(); Object invoke( Object proxy, Method method, Object[] args ); }### Answer: @Test public void testInvoke() { GroovyComposite domain1 = module.newTransient( GroovyComposite.class ); GroovyComposite domain2 = module.newTransient( GroovyComposite.class ); Assert.assertEquals( "do1() in Groovy:1", domain1.do1() ); Assert.assertEquals( "do1() in Groovy:2", domain1.do1() ); Assert.assertEquals( "do1() in Groovy:3", domain1.do1() ); Assert.assertEquals( "do1() in Groovy:4", domain1.do1() ); Assert.assertEquals( "do1() in Groovy:1", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:2", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:3", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:4", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:5", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:6", domain2.do1() ); Assert.assertEquals( "do1() in Groovy:5", domain1.do1() ); }
### Question: JavaScriptMixin implements InvocationHandler, ScriptReloadable { public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable { Context cx = Context.enter(); try { Scriptable proxyScope = Context.toObject( proxy, instanceScope ); proxyScope.setPrototype( instanceScope ); proxyScope.put( "compositeBuilderFactory", proxyScope, factory ); proxyScope.put( "This", proxyScope, me ); Function fn = getFunction( cx, proxyScope, method ); Object result = fn.call( cx, instanceScope, proxyScope, args ); if( result instanceof Undefined ) { return null; } else if( result instanceof Wrapper ) { return ( (Wrapper) result ).unwrap(); } else { return result; } } finally { Context.exit(); } } JavaScriptMixin(); Object invoke( Object proxy, Method method, Object[] args ); void reloadScripts(); }### Answer: @Test public void testInvoke() throws Throwable { JavaScriptComposite domain = module.newTransient( JavaScriptComposite.class ); Assert.assertEquals( "do1 script \" and ' for many cases is harder.", domain.do1() ); }
### Question: BeanShellMixin implements InvocationHandler, ScriptReloadable { public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable { Interpreter runtime; synchronized( BeanShellMixin.class ) { runtime = runtimes.get( module ); } if( runtime == null ) { runtime = new Interpreter(); BshClassManager.createClassManager( runtime ); Class compositeType = me.getClass().getInterfaces()[ 0 ]; NameSpace namespace = buildNamespace( compositeType, runtime ); runtime.setNameSpace( namespace ); synchronized( BeanShellMixin.class ) { runtimes.put( module, runtime ); } runtime.set( "compositeBuilderFactory", compositeBuilderFactory ); runtime.set( "unitOfWorkFactory", uowFactory ); } if( mixins == null ) { mixins = extractMixins( runtime.getClassManager() ); } Object instance = mixins.get( method.getDeclaringClass() ); return method.invoke( instance, args ); } Object invoke( Object proxy, Method method, Object[] args ); void reloadScripts(); }### Answer: @Test public void testInvoke() throws Throwable { BeanShellComposite domain1 = module.newTransient( BeanShellComposite.class ); BeanShellComposite domain2 = module.newTransient( BeanShellComposite.class ); Assert.assertEquals( "do1() in Beanshell:1", domain1.do1() ); Assert.assertEquals( "do1() in Beanshell:2", domain1.do1() ); Assert.assertEquals( "do1() in Beanshell:3", domain1.do1() ); Assert.assertEquals( "do1() in Beanshell:4", domain1.do1() ); Assert.assertEquals( "do1() in Beanshell:1", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:2", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:3", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:4", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:5", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:6", domain2.do1() ); Assert.assertEquals( "do1() in Beanshell:5", domain1.do1() ); }
### Question: EventRouter implements Output<DomainEventValue, T>, Receiver<UnitOfWorkDomainEventsValue, T> { public EventRouter route( Specification<DomainEventValue> specification, Receiver<DomainEventValue, T> receiver ) { routeEvent.put( specification, receiver ); return this; } EventRouter route( Specification<DomainEventValue> specification, Receiver<DomainEventValue, T> receiver ); EventRouter defaultReceiver( Receiver<DomainEventValue, T> defaultReceiver ); @Override void receiveFrom( Sender<? extends DomainEventValue, SenderThrowableType> sender ); @Override void receive( final UnitOfWorkDomainEventsValue item ); }### Answer: @Test public void testRouter() throws IOException { final List<DomainEventValue> matched = new ArrayList<DomainEventValue>( ); EventRouter<IOException> router = new EventRouter<IOException>(); router.route( Events.withNames( "Test1", "Test2" ), new Receiver<DomainEventValue,IOException>() { @Override public void receive( DomainEventValue item ) throws IOException { matched.add(item); } }); Inputs.iterable( Events.events( list ) ).transferTo( router ); Assert.assertThat(matched.toString(), CoreMatchers.equalTo( "[{\"name\":\"Test1\",\"entityType\":\"Foo\",\"entityId\":\"123\",\"parameters\":\"{}\"}, {\"name\":\"Test2\",\"entityType\":\"Foo\",\"entityId\":\"123\",\"parameters\":\"{}\"}]" )); }
### Question: Events { public static Iterable<DomainEventValue> events( Iterable<UnitOfWorkDomainEventsValue> transactions ) { return Iterables.flattenIterables( Iterables.map( new Function<UnitOfWorkDomainEventsValue, Iterable<DomainEventValue>>() { @Override public Iterable<DomainEventValue> map( UnitOfWorkDomainEventsValue unitOfWorkDomainEventsValue ) { return unitOfWorkDomainEventsValue.events().get(); } }, transactions ) ); } static Iterable<DomainEventValue> events( Iterable<UnitOfWorkDomainEventsValue> transactions ); static Iterable<DomainEventValue> events( UnitOfWorkDomainEventsValue... unitOfWorkDomainValues ); static Specification<UnitOfWorkDomainEventsValue> afterDate( final Date afterDate ); static Specification<UnitOfWorkDomainEventsValue> beforeDate( final Date afterDate ); static Specification<UnitOfWorkDomainEventsValue> withUsecases( final String... names ); static Specification<UnitOfWorkDomainEventsValue> byUser( final String... by ); static Specification<DomainEventValue> withNames( final Iterable<String> names ); static Specification<DomainEventValue> withNames( final String... names ); static Specification<DomainEventValue> withNames( final Class eventClass ); static Specification<DomainEventValue> onEntities( final String... entities ); static Specification<DomainEventValue> onEntityTypes( final String... entityTypes ); static Specification<DomainEventValue> paramIs( final String name, final String value ); }### Answer: @Test public void testIterablesEvents() { assertThat( count( events( list ) ), equalTo( 6L ) ); iterable( events( list ) ).transferTo( systemOut() ); }
### Question: EntityTypeSerializer { public EntityTypeSerializer() { dataTypes.put( String.class.getName(), XMLSchema.STRING ); dataTypes.put( Integer.class.getName(), XMLSchema.INT ); dataTypes.put( Boolean.class.getName(), XMLSchema.BOOLEAN ); dataTypes.put( Byte.class.getName(), XMLSchema.BYTE ); dataTypes.put( BigDecimal.class.getName(), XMLSchema.DECIMAL ); dataTypes.put( Double.class.getName(), XMLSchema.DOUBLE ); dataTypes.put( Long.class.getName(), XMLSchema.LONG ); dataTypes.put( Short.class.getName(), XMLSchema.SHORT ); dataTypes.put( Date.class.getName(), XMLSchema.DATETIME ); } EntityTypeSerializer(); Iterable<Statement> serialize( final EntityDescriptor entityDescriptor ); }### Answer: @Test public void testEntityTypeSerializer() throws RDFHandlerException { EntityDescriptor entityDescriptor = module.entityDescriptor(TestEntity.class.getName()); Iterable<Statement> graph = serializer.serialize( entityDescriptor ); String[] prefixes = new String[]{ "rdf", "dc", " vc", "qi4j" }; String[] namespaces = new String[]{ Rdfs.RDF, DcRdf.NAMESPACE, "http: new RdfXmlSerializer().serialize( graph, new PrintWriter( System.out ), prefixes, namespaces ); }
### Question: ParameterizedTypes { public static <S, T extends S> ParameterizedType findParameterizedType( Class<T> type, Class<S> searchType ) { return ParameterizedTypes.findParameterizedType( (Type) type, searchType ); } private ParameterizedTypes(); static Type[] findTypeVariables( Class<T> type, Class<S> searchType ); static ParameterizedType findParameterizedType( Class<T> type, Class<S> searchType ); }### Answer: @Test public void findParameterizedType() { assertEquals( GarbageMan.class.getGenericInterfaces()[ 0 ], ParameterizedTypes.findParameterizedType( GarbageMan.class, HandlerOf.class ) ); }
### Question: ParameterizedTypes { public static <S, T extends S> Type[] findTypeVariables( Class<T> type, Class<S> searchType ) { return ParameterizedTypes.findParameterizedType( type, searchType ).getActualTypeArguments(); } private ParameterizedTypes(); static Type[] findTypeVariables( Class<T> type, Class<S> searchType ); static ParameterizedType findParameterizedType( Class<T> type, Class<S> searchType ); }### Answer: @Test public void findTypeVariables() { assertArrayEquals( ((ParameterizedType) GarbageMan.class.getGenericInterfaces()[0]).getActualTypeArguments(), ParameterizedTypes.findTypeVariables( GarbageMan.class, HandlerOf.class ) ); }
### Question: DBInitializer implements Serializable { public final void initialize( String schemaUrl, String dataUrl, String dbUrl, Properties connectionProperties ) throws SQLException, IOException { Connection connection1 = getSqlConnection( dbUrl, connectionProperties ); runScript( schemaUrl, connection1 ); Connection connection2 = getSqlConnection( dbUrl, connectionProperties ); runScript( dataUrl, connection2 ); } final void initialize( String schemaUrl, String dataUrl, String dbUrl, Properties connectionProperties ); }### Answer: @Test @Ignore( "The entire QRM is buggered." ) public void testInitializer() throws Exception { final DBInitializerConfiguration info = derbyDatabaseHandler.createDbInitializerConfigMock(); final DBInitializer initializer = new DBInitializer(); Properties connectionProperties = info.connectionProperties().get(); String schemaUrl = info.schemaUrl().get(); String dataUrl = info.dataUrl().get(); String dbUrl = info.dbUrl().get(); initializer.initialize( schemaUrl, dataUrl, dbUrl, connectionProperties ); derbyDatabaseHandler.checkDataInitialization(); }
### Question: CapitalizingIdentifierConverter implements IdentifierConverter { public String convertIdentifier( final QualifiedName qualifiedIdentifier ) { final String name = qualifiedIdentifier.name(); if( name.equalsIgnoreCase( "identity" ) ) { return "ID"; } return name.toUpperCase(); } String convertIdentifier( final QualifiedName qualifiedIdentifier ); Object getValueFromData( final Map<String, Object> rawData, final QualifiedName qualifiedName ); Map<String, Object> convertKeys( Map<QualifiedName, Object> rawData ); }### Answer: @Test public void convertToUpperCase() { assertEquals( "identity -> ID", "ID", converter.convertIdentifier( QualifiedName.fromQN( "abc:identity" ) ) ); assertEquals( "uppercase ABC", "ABC", converter.convertIdentifier( QualifiedName.fromQN( "abc:abc" ) ) ); assertEquals( "removed qualified prefix", "ABC", converter.convertIdentifier( QualifiedName.fromQN( "aaa:abc" ) ) ); assertEquals( "removed qualified prefixes", "ABC", converter.convertIdentifier( QualifiedName.fromQN( "aaa:bbb:abc" ) ) ); }
### Question: CapitalizingIdentifierConverter implements IdentifierConverter { public Object getValueFromData( final Map<String, Object> rawData, final QualifiedName qualifiedName ) { String convertedIdentifier = convertIdentifier( qualifiedName ); if( rawData.containsKey( convertedIdentifier ) ) { return rawData.remove( convertedIdentifier ); } return null; } String convertIdentifier( final QualifiedName qualifiedIdentifier ); Object getValueFromData( final Map<String, Object> rawData, final QualifiedName qualifiedName ); Map<String, Object> convertKeys( Map<QualifiedName, Object> rawData ); }### Answer: @Test public void removeFromMap() { Map<String, Object> rawData = new HashMap<String, Object>(); rawData.put( "ABC", "test" ); assertEquals( "converted key and found value", "test", converter.getValueFromData( rawData, QualifiedName.fromQN( "aaa:abc" ) ) ); assertEquals( "entry removed", 0, rawData.size() ); } @Test public void nullIfNotFound() { Map<String, Object> rawData = new HashMap<String, Object>(); assertEquals( "converted key and found value", null, converter.getValueFromData( rawData, QualifiedName.fromQN( "aaa:abc" ) ) ); }
### Question: CapitalizingIdentifierConverter implements IdentifierConverter { public Map<String, Object> convertKeys( Map<QualifiedName, Object> rawData ) { Map<String, Object> result = new HashMap<String, Object>( rawData.size() ); for( Map.Entry<QualifiedName, Object> entry : rawData.entrySet() ) { final String convertedIdentifier = convertIdentifier( entry.getKey() ); if( result.containsKey( convertedIdentifier ) ) { throw new IllegalArgumentException( format( "Duplicate Key: %s -> %s", entry.getKey(), convertedIdentifier ) ); } result.put( convertedIdentifier, entry.getValue() ); } return result; } String convertIdentifier( final QualifiedName qualifiedIdentifier ); Object getValueFromData( final Map<String, Object> rawData, final QualifiedName qualifiedName ); Map<String, Object> convertKeys( Map<QualifiedName, Object> rawData ); }### Answer: @Test public void convertMapKeys() { Map<QualifiedName, Object> rawData = new HashMap<QualifiedName, Object>(); rawData.put( QualifiedName.fromQN( "abc:abc" ), "test1" ); rawData.put( QualifiedName.fromQN( "abc:DEF" ), "test2" ); rawData.put( QualifiedName.fromQN( "aaa:GHI" ), "test3" ); rawData.put( QualifiedName.fromQN( "aaa:bbb:JKL" ), "test4" ); final Map<String, Object> convertedData = converter.convertKeys( rawData ); assertEquals( "all entries remained", 4, convertedData.size() ); assertEquals( "converted key and found value ABC", "test1", convertedData.get( "ABC" ) ); assertEquals( "converted key and found value DEF", "test2", convertedData.get( "DEF" ) ); assertEquals( "converted key and found value GHI", "test3", convertedData.get( "GHI" ) ); assertEquals( "converted key and found value JKL", "test4", convertedData.get( "JKL" ) ); } @Test( expected = IllegalArgumentException.class ) public void failDuplicateKeys() { Map<QualifiedName, Object> rawData = new HashMap<QualifiedName, Object>(); rawData.put( QualifiedName.fromQN( "abc" ), "test1" ); rawData.put( QualifiedName.fromQN( "ABC" ), "test2" ); converter.convertKeys( rawData ); } @Test( expected = IllegalArgumentException.class ) public void failDuplicateQualfiedKeys() { Map<QualifiedName, Object> rawData = new HashMap<QualifiedName, Object>(); rawData.put( QualifiedName.fromQN( "abc" ), "test1" ); rawData.put( QualifiedName.fromQN( "aaa:abc" ), "test2" ); converter.convertKeys( rawData ); }
### Question: OpenSDSInfo extends BaseArrayInfo { public OpenSDSInfo() { super(); } OpenSDSInfo(); OpenSDSInfo(String id, String hostName, String port); @Override boolean equals(Object obj); @Override int hashCode(); String getProductSN(); void setProductSN(String productSN); boolean getauthEnabled(); void setauthEnabled(boolean authEnabled); void clearAll(); @Override String getURL(); @Override String toString(); }### Answer: @Test void testOpenSDSInfo() { OpenSDSInfo OpenSDSInfo = new OpenSDSInfo("testId", "testHostName", "testPort"); OpenSDSInfo.hashCode(); OpenSDSInfo.getHostName(); OpenSDSInfo.getURL(); OpenSDSInfo.getProductSN(); OpenSDSInfo.toString(); }
### Question: OpenSDSInfo extends BaseArrayInfo { @Override public boolean equals(Object obj) { if (obj instanceof OpenSDSInfo) { OpenSDSInfo openSDSInfo = (OpenSDSInfo) obj; if (openSDSInfo.getId().equals(getId())) { return true; } } return false; } OpenSDSInfo(); OpenSDSInfo(String id, String hostName, String port); @Override boolean equals(Object obj); @Override int hashCode(); String getProductSN(); void setProductSN(String productSN); boolean getauthEnabled(); void setauthEnabled(boolean authEnabled); void clearAll(); @Override String getURL(); @Override String toString(); }### Answer: @Test void testEqualsObject() { OpenSDSInfo OpenSDSInfo = new OpenSDSInfo("testId", "testHostName", "testPort"); OpenSDSInfo obj = new OpenSDSInfo("testId", "testHostName", "testPort"); OpenSDSInfo.equals(obj); } @Test void testNotEqualsObject() { OpenSDSInfo OpenSDSInfo = new OpenSDSInfo(); OpenSDSInfo obj = new OpenSDSInfo("testId", "testHostName", "testPort"); OpenSDSInfo.equals(obj); }
### Question: VolumeService { public void createVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile) throws Exception { OpenSDS opensds = new OpenSDS(); opensds.login(openSDSInfo); log.info("Logged in to OpenSDS"); VolumeMO volume = opensds.createVolume(name, description, capacity, profile); log.info("Volume " + volume.id + "is created"); } void createVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile); void deleteVolume(OpenSDSInfo openSDSInfo, String id); String createAndAttachVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile, String hostIP, String iqn); void expandVolume(OpenSDSInfo openSDSInfo, String id, long capacity); }### Answer: @Test void testCreateVolume() throws Exception { readDefaultConfig(); VolumeService volumeService = new VolumeService(); volumeService.createVolume(arrayInfo, "test_script_vol", "test_script_vol", 1, profileId); }
### Question: VolumeService { public String createAndAttachVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile, String hostIP, String iqn) throws Exception { OpenSDS opensds = new OpenSDS(); opensds.login(openSDSInfo); VolumeMO volume = opensds.createVolume(name, description, capacity, profile); TimeUnit.SECONDS.sleep(10); ConnectMO connect = new ConnectMO(hostIP, HOST_OS_TYPE.ESXI, iqn, hostIP, null, ATTACH_MODE.RW, ATTACH_PROTOCOL.ISCSI); opensds.attachVolume(volume.id, connect); String volume_wwn = opensds.getVolumeWWN(volume.id); return volume_wwn; } void createVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile); void deleteVolume(OpenSDSInfo openSDSInfo, String id); String createAndAttachVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile, String hostIP, String iqn); void expandVolume(OpenSDSInfo openSDSInfo, String id, long capacity); }### Answer: @Test void testcreateAndAttachVolume() throws Exception { VolumeService volumeService = new VolumeService(); readDefaultConfig(); volumeService.createAndAttachVolume(arrayInfo, "attach_vol", "attach volume test", 1, profileId, esxIP, esxIQN); }
### Question: VolumeService { public void deleteVolume(OpenSDSInfo openSDSInfo, String id) throws Exception { OpenSDS opensds = new OpenSDS(); opensds.login(openSDSInfo); log.info("Logged in to OpenSDS"); opensds.deleteVolume(id); log.info("Volume " + id + "is deleted"); } void createVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile); void deleteVolume(OpenSDSInfo openSDSInfo, String id); String createAndAttachVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile, String hostIP, String iqn); void expandVolume(OpenSDSInfo openSDSInfo, String id, long capacity); }### Answer: @Test void testDeleteVolume() throws Exception { VolumeService volumeService = new VolumeService(); readDefaultConfig(); volumeService.deleteVolume(arrayInfo, volId); }
### Question: VolumeService { public void expandVolume(OpenSDSInfo openSDSInfo, String id, long capacity) throws Exception { OpenSDS opensds = new OpenSDS(); opensds.login(openSDSInfo); log.info("Logged in to OpenSDS"); opensds.expandVolume(id, capacity); } void createVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile); void deleteVolume(OpenSDSInfo openSDSInfo, String id); String createAndAttachVolume(OpenSDSInfo openSDSInfo, String name, String description, long capacity, String profile, String hostIP, String iqn); void expandVolume(OpenSDSInfo openSDSInfo, String id, long capacity); }### Answer: @Test void testexpandVolume() throws Exception { VolumeService volumeService = new VolumeService(); readDefaultConfig(); volumeService.expandVolume(arrayInfo, volId, 2); }
### Question: Configuration { public void register(String arrayName, String hostname, String port, String username, String password, boolean authEnabled, String productModel) throws Exception { String uniqId = hostname + "-" + port; OpenSDSInfo arrayInfo = new OpenSDSInfo(uniqId, hostname, port); arrayInfo.setArrayName(arrayName); arrayInfo.setHostName(hostname); arrayInfo.setPort(port); arrayInfo.setUsername(username); arrayInfo.setPassword(password); arrayInfo.setauthEnabled(authEnabled); arrayInfo.setProductModel(productModel); if (LOG.isInfoEnabled()) { LOG.info("register:::" + arrayInfo); } OpenSDS opensds = new OpenSDS(); opensds.login(arrayInfo); StorageMO storage = opensds.getDeviceInfo(); arrayInfo.setProductName(storage.name); arrayInfo.setProductVersion("V1"); arrayInfo.setProductSN(storage.sn); OpenSDSStorageRepository.getUniqueInstance().updateProperties(arrayInfo, OpenSDSStorageRepository.ADD); } Configuration(String id, String name); String getId(); void setId(String id); String getName(); void setName(String name); String test(); void register(String arrayName, String hostname, String port, String username, String password, boolean authEnabled, String productModel); void unregister(OpenSDSInfo opensdsInfo); void debugOn(); void debugOff(); List<OpenSDSInfo> getOpenSDSInfos(); }### Answer: @Test void testRegister() throws Exception { Configuration conf = new Configuration("testID", "opensds"); conf.register("OpenSDS_Test", "127.0.0.1", "50040", "admin", "opensds@123", true, "V1"); }
### Question: MyWidget extends Composite { public void setName(String firstName, String lastName) { name.setText(firstName + " " + lastName); } MyWidget(); void setName(String firstName, String lastName); void updateData(); void loadDataFromRpc(); }### Answer: @Test public void testSetName() { widget.setName("John", "Smith"); verify(widget.name).setText("John Smith"); } @Test public void testSetNameWithFakes() { GwtMockito.useProviderForType(HasText.class, new FakeProvider<HasText>() { @Override public HasText getFake(Class<?> type) { return new HasText() { private String text; @Override public void setText(String text) { this.text = text; } @Override public String getText() { return text; } }; } }); widget = new MyWidget(); widget.setName("John", "Smith"); assertEquals("John Smith", widget.name.getText()); }
### Question: GwtMockito { public static <T> T getFake(Class<T> type) { T fake = getFakeFromProviderMap( type, bridge != null ? bridge.registeredProviders : DEFAULT_FAKE_PROVIDERS); if (fake == null) { throw new IllegalArgumentException("No fake provider has been registered " + "for " + type.getSimpleName() + ". Call useProviderForType to " + "register a provider before calling getFake."); } return fake; } static void initMocks(Object owner); static void tearDown(); static void useProviderForType(Class<?> type, FakeProvider<?> provider); static T getFake(Class<T> type); }### Answer: @Test public void getFakeShouldReturnDefaultFakes() { SampleMessages messages = GwtMockito.getFake(SampleMessages.class); assertEquals("noArgs", messages.noArgs()); } @Test public void getFakeShouldFailForUnregisteredFakes() { try { GwtMockito.getFake(SampleInterface.class); fail("Exception not thrown"); } catch (IllegalArgumentException e) { assertTrue(e.getMessage().contains("SampleInterface")); } }
### Question: MyWidget extends Composite { public void updateData() { data.setText(dataProvider.getData()); } MyWidget(); void setName(String firstName, String lastName); void updateData(); void loadDataFromRpc(); }### Answer: @Test public void testUpdateData() { when(dataProvider.getData()).thenReturn("data"); widget.updateData(); verify(widget.data).setText("data"); }
### Question: MyWidget extends Composite { public void loadDataFromRpc() { MyServiceAsync service = GWT.create(MyService.class); service.getData(new AsyncCallback<String>() { @Override public void onSuccess(String result) { data.setText(result); } @Override public void onFailure(Throwable caught) {} }); } MyWidget(); void setName(String firstName, String lastName); void updateData(); void loadDataFromRpc(); }### Answer: @Test @SuppressWarnings("unchecked") public void testMockRpcs() { doAnswer(returnSuccess("some data")).when(myService).getData(any(AsyncCallback.class)); widget.loadDataFromRpc(); verify(widget.data).setText("some data"); }
### Question: GwtMockito { public static void initMocks(Object owner) { bridge = new Bridge(); for (Entry<Class<?>, FakeProvider<?>> entry : DEFAULT_FAKE_PROVIDERS.entrySet()) { useProviderForType(entry.getKey(), entry.getValue()); } boolean success = false; try { setGwtBridge(bridge); registerGwtMocks(owner); MockitoAnnotations.initMocks(owner); success = true; } finally { if (!success) { tearDown(); } } } static void initMocks(Object owner); static void tearDown(); static void useProviderForType(Class<?> type, FakeProvider<?> provider); static T getFake(Class<T> type); }### Answer: @Test(expected = IllegalArgumentException.class) public void shouldNotAllowMultipleGwtMocksForSameType() { GwtMockito.initMocks(new Object() { @GwtMock SampleInterface mock1; @GwtMock SampleInterface mock2; }); }
### Question: InstanceRegistry extends PeerAwareInstanceRegistryImpl implements ApplicationContextAware { @Override public void register(InstanceInfo info, int leaseDuration, boolean isReplication) { handleRegistration(info, leaseDuration, isReplication); super.register(info, leaseDuration, isReplication); } InstanceRegistry(EurekaServerConfig serverConfig, EurekaClientConfig clientConfig, ServerCodecs serverCodecs, EurekaClient eurekaClient, int expectedNumberOfRenewsPerMin, int defaultOpenForTrafficCount); @Override void setApplicationContext(ApplicationContext context); @Override void openForTraffic(ApplicationInfoManager applicationInfoManager, int count); @Override void register(InstanceInfo info, int leaseDuration, boolean isReplication); @Override void register(final InstanceInfo info, final boolean isReplication); @Override boolean cancel(String appName, String serverId, boolean isReplication); @Override boolean renew(final String appName, final String serverId, boolean isReplication); }### Answer: @Test public void testRegister() throws Exception { final LeaseInfo leaseInfo = getLeaseInfo(); final InstanceInfo instanceInfo = getInstanceInfo(APP_NAME, HOST_NAME, INSTANCE_ID, PORT, leaseInfo); instanceRegistry.register(instanceInfo, false); assertEquals(1, this.testEvents.applicationEvents.size()); assertTrue(this.testEvents.applicationEvents.get(0) instanceof EurekaInstanceRegisteredEvent); final EurekaInstanceRegisteredEvent registeredEvent = (EurekaInstanceRegisteredEvent) (this.testEvents.applicationEvents.get(0)); assertEquals(instanceInfo, registeredEvent.getInstanceInfo()); assertEquals(leaseInfo.getDurationInSecs(), registeredEvent.getLeaseDuration()); assertEquals(instanceRegistry, registeredEvent.getSource()); assertFalse(registeredEvent.isReplication()); } @Test public void testDefaultLeaseDurationRegisterEvent() throws Exception { final InstanceInfo instanceInfo = getInstanceInfo(APP_NAME, HOST_NAME, INSTANCE_ID, PORT, null); instanceRegistry.register(instanceInfo, false); final EurekaInstanceRegisteredEvent registeredEvent = (EurekaInstanceRegisteredEvent) (this.testEvents.applicationEvents.get(0)); assertEquals(LeaseInfo.DEFAULT_LEASE_DURATION, registeredEvent.getLeaseDuration()); }
### Question: InstanceRegistry extends PeerAwareInstanceRegistryImpl implements ApplicationContextAware { @Override protected boolean internalCancel(String appName, String id, boolean isReplication) { handleCancelation(appName, id, isReplication); return super.internalCancel(appName, id, isReplication); } InstanceRegistry(EurekaServerConfig serverConfig, EurekaClientConfig clientConfig, ServerCodecs serverCodecs, EurekaClient eurekaClient, int expectedNumberOfRenewsPerMin, int defaultOpenForTrafficCount); @Override void setApplicationContext(ApplicationContext context); @Override void openForTraffic(ApplicationInfoManager applicationInfoManager, int count); @Override void register(InstanceInfo info, int leaseDuration, boolean isReplication); @Override void register(final InstanceInfo info, final boolean isReplication); @Override boolean cancel(String appName, String serverId, boolean isReplication); @Override boolean renew(final String appName, final String serverId, boolean isReplication); }### Answer: @Test public void testInternalCancel() throws Exception { instanceRegistry.internalCancel(APP_NAME, HOST_NAME, false); assertEquals(1, this.testEvents.applicationEvents.size()); assertTrue(this.testEvents.applicationEvents.get(0) instanceof EurekaInstanceCanceledEvent); final EurekaInstanceCanceledEvent registeredEvent = (EurekaInstanceCanceledEvent) (this.testEvents.applicationEvents.get(0)); assertEquals(APP_NAME, registeredEvent.getAppName()); assertEquals(HOST_NAME, registeredEvent.getServerId()); assertEquals(instanceRegistry, registeredEvent.getSource()); assertFalse(registeredEvent.isReplication()); }
### Question: InstanceRegistry extends PeerAwareInstanceRegistryImpl implements ApplicationContextAware { @Override public boolean renew(final String appName, final String serverId, boolean isReplication) { log("renew " + appName + " serverId " + serverId + ", isReplication {}" + isReplication); List<Application> applications = getSortedApplications(); for (Application input : applications) { if (input.getName().equals(appName)) { InstanceInfo instance = null; for (InstanceInfo info : input.getInstances()) { if (info.getId().equals(serverId)) { instance = info; break; } } publishEvent(new EurekaInstanceRenewedEvent(this, appName, serverId, instance, isReplication)); break; } } return super.renew(appName, serverId, isReplication); } InstanceRegistry(EurekaServerConfig serverConfig, EurekaClientConfig clientConfig, ServerCodecs serverCodecs, EurekaClient eurekaClient, int expectedNumberOfRenewsPerMin, int defaultOpenForTrafficCount); @Override void setApplicationContext(ApplicationContext context); @Override void openForTraffic(ApplicationInfoManager applicationInfoManager, int count); @Override void register(InstanceInfo info, int leaseDuration, boolean isReplication); @Override void register(final InstanceInfo info, final boolean isReplication); @Override boolean cancel(String appName, String serverId, boolean isReplication); @Override boolean renew(final String appName, final String serverId, boolean isReplication); }### Answer: @Test public void testRenew() throws Exception { final InstanceInfo instanceInfo1 = getInstanceInfo(APP_NAME, HOST_NAME, INSTANCE_ID, PORT, null); final InstanceInfo instanceInfo2 = getInstanceInfo(APP_NAME, HOST_NAME, "my-host-name:8009", 8009, null); final Application application = new Application(APP_NAME, Arrays.asList(instanceInfo1, instanceInfo2)); final List<Application> applications = new ArrayList<>(); applications.add(application); doReturn(applications).when(instanceRegistry).getSortedApplications(); instanceRegistry.renew(APP_NAME, INSTANCE_ID, false); instanceRegistry.renew(APP_NAME, "my-host-name:8009", false); assertEquals(2, this.testEvents.applicationEvents.size()); assertTrue(this.testEvents.applicationEvents.get(0) instanceof EurekaInstanceRenewedEvent); assertTrue(this.testEvents.applicationEvents.get(1) instanceof EurekaInstanceRenewedEvent); final EurekaInstanceRenewedEvent event1 = (EurekaInstanceRenewedEvent) (this.testEvents.applicationEvents.get(0)); assertEquals(APP_NAME, event1.getAppName()); assertEquals(INSTANCE_ID, event1.getServerId()); assertEquals(instanceRegistry, event1.getSource()); assertEquals(instanceInfo1, event1.getInstanceInfo()); assertFalse(event1.isReplication()); final EurekaInstanceRenewedEvent event2 = (EurekaInstanceRenewedEvent) (this.testEvents.applicationEvents.get(1)); assertEquals(instanceInfo2, event2.getInstanceInfo()); }
### Question: EurekaController { @RequestMapping(method = RequestMethod.GET) public String status(HttpServletRequest request, Map<String, Object> model) { populateBase(request, model); populateApps(model); StatusInfo statusInfo; try { statusInfo = new StatusResource().getStatusInfo(); } catch (Exception e) { statusInfo = StatusInfo.Builder.newBuilder().isHealthy(false).build(); } model.put("statusInfo", statusInfo); populateInstanceInfo(model, statusInfo); filterReplicas(model, statusInfo); return "eureka/status"; } EurekaController(ApplicationInfoManager applicationInfoManager); @RequestMapping(method = RequestMethod.GET) String status(HttpServletRequest request, Map<String, Object> model); @RequestMapping(value = "/lastn", method = RequestMethod.GET) String lastn(HttpServletRequest request, Map<String, Object> model); }### Answer: @Test public void testStatus() throws Exception { Map<String, Object> model = new HashMap<>(); EurekaController controller = new EurekaController(infoManager); controller.status(new MockHttpServletRequest("GET", "/"), model); Map<String, Object> app = getFirst(model, "apps"); Map<String, Object> instanceInfo = getFirst(app, "instanceInfos"); Map<String, Object> instance = getFirst(instanceInfo, "instances"); assertThat("id was wrong", (String)instance.get("id"), is(equalTo("myapp:1"))); assertThat("url was not null", instance.get("url"), is(nullValue())); assertThat("isHref was wrong", (Boolean)instance.get("isHref"), is(false)); }
### Question: HttpClient { public Response get(String host, String endpoint) throws IOException { return performRequest("GET", host, endpoint, Collections.emptyMap(), null); } private HttpClient(); Response get(String host, String endpoint); Response post(String host, String endpoint, JSONObject entity); Response put(String host, String endpoint, JSONObject entity); Response delete(String host, String endpoint); Response head(String host, String endpoint); Response performRequest(String method, String host, String endpoint, Map<String, String> params, JSONObject entity); static HttpClient getInstance(); }### Answer: @Test public void get() throws Exception { Response response = HttpClient.getInstance().get("http: System.out.println(response); }
### Question: ClassUtils { public static Set<Class<?>> getAnnotatedClasses(String packageName, Class<? extends Annotation> annotation) { Reflections reflections = new Reflections(packageName); Set<Class<?>> annotated = reflections.getTypesAnnotatedWith(annotation); return annotated; } static Set<Class<?>> getAnnotatedClasses(String packageName, Class<? extends Annotation> annotation); }### Answer: @Test public void getAnnotatedClasses() { ClassUtils.getAnnotatedClasses("com.timeyang.search.entity", Document.class).forEach(System.out::println); }
### Question: JsonUtils { public static String convertToString(JSONObject jsonObject) { try { return mapper.writeValueAsString(jsonObject); } catch (JsonProcessingException e) { throw new RuntimeException(e); } } static String convertToString(JSONObject jsonObject); static byte[] convertToBytes(JSONObject jsonObject); static JSONObject readValue(InputStream inputStream); static T parseJsonToObject(String json, Class<T> clazz); }### Answer: @Test public void convertToString() throws Exception { JSONObject jsonObject = new JSONObject(); jsonObject.put("settings", new JSONObject().put("index", new JSONObject().put("number_of_shards", 3) .put("number_of_replicas", 2) ) ); String settings = JsonUtils.convertToString(jsonObject); System.out.println(settings); }
### Question: KafkaConnectClient { public void deleteConnector(String connectorName) { if(!checkConnectorExists(connectorName)) throw new IllegalArgumentException("The specified connector[" + connectorName + "] doesn't exist"); String endpoint = "connectors/" + connectorName; try { String url = getRandomUrl(); locks.putIfAbsent(connectorName, new ReentrantLock()); try { locks.get(connectorName).lock(); HTTP_CLIENT.delete(url, endpoint); }finally { locks.get(connectorName).unlock(); } } catch (IOException e) { throw new KafkaConnectRequestException(e); } } @Inject KafkaConnectClient(JkesProperties jkesProperties, Metadata metadata); @PostConstruct void init(); JSONObject getConnectConfig(String connectorName); boolean createIndexSinkConnectorIfAbsent(Class<?> document); void updateIndexSinkConnector(Class<?> document); boolean createDeleteSinkConnectorIfAbsent(); boolean ensureEsSinkConnector(Class<?> document); void deleteConnector(String connectorName); void restartConnector(String connectorName); boolean checkConnectorExists(String connectorName); }### Answer: @Test public void deleteConnector() throws Exception { JkesProperties jkesProperties = new DefaultJkesPropertiesImpl() { @Override public String getKafkaConnectServers() { return "http: } }; Config.setJkesProperties(jkesProperties); String connectorName = KafkaConnectUtils.getConnectorName(Person.class); new KafkaConnectClient(jkesProperties, new Metadata.MetadataBuilder(jkesProperties).build()).deleteConnector(connectorName); }
### Question: KafkaConnectClient { public boolean checkConnectorExists(String connectorName) { String endpoint = "connectors/" + connectorName; try { String url = getRandomUrl(); Response response; locks.putIfAbsent(connectorName, new ReentrantLock()); try { locks.get(connectorName).lock(); response = HTTP_CLIENT.get(url, endpoint); }finally { locks.get(connectorName).unlock(); } boolean contain = (response.getStatusCode() / 100) == 2; return contain; } catch (IOException e) { throw new KafkaConnectRequestException(e); } } @Inject KafkaConnectClient(JkesProperties jkesProperties, Metadata metadata); @PostConstruct void init(); JSONObject getConnectConfig(String connectorName); boolean createIndexSinkConnectorIfAbsent(Class<?> document); void updateIndexSinkConnector(Class<?> document); boolean createDeleteSinkConnectorIfAbsent(); boolean ensureEsSinkConnector(Class<?> document); void deleteConnector(String connectorName); void restartConnector(String connectorName); boolean checkConnectorExists(String connectorName); }### Answer: @Test public void checkConnectorExists() throws Exception { JkesProperties jkesProperties = new DefaultJkesPropertiesImpl() { @Override public String getKafkaConnectServers() { return "http: } }; Config.setJkesProperties(jkesProperties); String connectorName = KafkaConnectUtils.getConnectorName(Person.class); System.out.println(new KafkaConnectClient(jkesProperties, new Metadata.MetadataBuilder(jkesProperties).build()).checkConnectorExists(connectorName)); }
### Question: IndicesBuilder { public JSONObject buildIndex(Class<?> clazz) { Asserts.check(clazz.isAnnotationPresent(Document.class), "The class " + clazz.getCanonicalName() + " must be annotated with " + Document.class.getCanonicalName()); JSONObject settings = new JSONObject(); settings.put("index.mapper.dynamic", false); settings.put("number_of_shards", 11); settings.put("number_of_replicas", 2); JSONObject mappings = new JSONObject(); JSONObject mapping = new MappingBuilder().buildMapping(clazz); String type = DocumentUtils.getTypeName(clazz); mappings.put(type, mapping); JSONObject aliases = new JSONObject(); aliases.put(DocumentUtils.getAlias(clazz), new JSONObject()); JSONObject indices = new JSONObject(); indices.put("settings", settings); indices.put("mappings", mappings); indices.put("aliases", aliases); return indices; } private IndicesBuilder(); JSONObject buildIndex(Class<?> clazz); static IndicesBuilder getInstance(); }### Answer: @Test public void buildIndex() throws Exception { IndicesBuilder indicesBuilder = IndicesBuilder.getInstance(); JSONObject indices = indicesBuilder.buildIndex(PersonGroup.class); System.out.println(JsonUtils.convertToString(indices)); }
### Question: IndicesAdminClient { @PostConstruct public void init() { logger.info("search init begin"); Set<Class<?>> annotatedClasses = metadata.getAnnotatedDocuments(); check(annotatedClasses); for(Class clazz : annotatedClasses) { if(checkExists(DocumentUtils.getIndexName(clazz))) { updateIndex(clazz); }else { createIndex(clazz); } } logger.info("search init finished"); } @Inject IndicesAdminClient(EsRestClient esRestClient, JkesProperties jkesProperties, Metadata metadata); @PostConstruct void init(); void createIndex(Class clazz); void updateIndex(Class clazz); void deleteIndex(String index); boolean checkExists(String index); }### Answer: @Test public void start() throws Exception { indicesAdminClient.init(); }
### Question: IndicesAdminClient { public void createIndex(Class clazz) { String indexName = DocumentUtils.getIndexName(clazz); JSONObject index = this.indicesBuilder.buildIndex(clazz); locks.putIfAbsent(indexName, new ReentrantLock()); locks.get(indexName).lock(); this.esRestClient.performRequest("PUT", indexName, index); locks.get(indexName).unlock(); logger.info("created index[" + indexName + "] for entity: " + clazz); } @Inject IndicesAdminClient(EsRestClient esRestClient, JkesProperties jkesProperties, Metadata metadata); @PostConstruct void init(); void createIndex(Class clazz); void updateIndex(Class clazz); void deleteIndex(String index); boolean checkExists(String index); }### Answer: @Test public void createIndex() throws Exception { if(!indicesAdminClient.checkExists("my_index")) indicesAdminClient.createIndex(PersonGroup.class); }
### Question: IndicesAdminClient { public boolean checkExists(String index) { locks.putIfAbsent(index, new ReentrantLock()); locks.get(index).lock(); Response response = this.esRestClient.performRequest("HEAD", index); locks.get(index).unlock(); return response.getStatusLine().getStatusCode() == 200; } @Inject IndicesAdminClient(EsRestClient esRestClient, JkesProperties jkesProperties, Metadata metadata); @PostConstruct void init(); void createIndex(Class clazz); void updateIndex(Class clazz); void deleteIndex(String index); boolean checkExists(String index); }### Answer: @Test public void checkExists() throws Exception { indicesAdminClient.checkExists("my_index"); }
### Question: MappingBuilder { public JSONObject buildMapping(Class<?> clazz) { JSONObject mapping = new JSONObject(); mapping.put("dynamic", "strict"); mapping.put(FIELD_PROPERTIES, getEntityMappingProperties(clazz)); return mapping; } JSONObject buildMapping(Class<?> clazz); }### Answer: @Test public void buildMapping() { JSONObject mapping = new MappingBuilder().buildMapping(PersonGroup.class); System.out.println(JsonUtils.convertToString(mapping)); }
### Question: HttpClient { public Response post(String host, String endpoint, JSONObject entity) throws IOException { return performRequest("POST", host, endpoint, Collections.emptyMap(), entity); } private HttpClient(); Response get(String host, String endpoint); Response post(String host, String endpoint, JSONObject entity); Response put(String host, String endpoint, JSONObject entity); Response delete(String host, String endpoint); Response head(String host, String endpoint); Response performRequest(String method, String host, String endpoint, Map<String, String> params, JSONObject entity); static HttpClient getInstance(); }### Answer: @Test public void post() throws Exception { }
### Question: HttpClient { static URI buildUri(String path, Map<String, String> params) { Objects.requireNonNull(path, "path must not be null"); try { URIBuilder uriBuilder = new URIBuilder(path); for (Map.Entry<String, String> param : params.entrySet()) { uriBuilder.addParameter(param.getKey(), param.getValue()); } return uriBuilder.build(); } catch(URISyntaxException e) { throw new IllegalArgumentException(e.getMessage(), e); } } private HttpClient(); Response get(String host, String endpoint); Response post(String host, String endpoint, JSONObject entity); Response put(String host, String endpoint, JSONObject entity); Response delete(String host, String endpoint); Response head(String host, String endpoint); Response performRequest(String method, String host, String endpoint, Map<String, String> params, JSONObject entity); static HttpClient getInstance(); }### Answer: @Test public void buildUri() throws Exception { String url = "http: InetAddress address = InetAddress.getByName(new URL(url).getHost()); String ip = address.getHostAddress(); System.out.println(ip); }
### Question: HttpUtils { public static String parseIpFromUrl(String url) throws MalformedURLException, UnknownHostException { Asserts.notBlank(url, "url can't be null"); InetAddress address = InetAddress.getByName(new URL(url).getHost()); return address.getHostAddress(); } static String parseIpFromUrl(String url); static String[] getIpsFromUrls(String... urls); static String getIpsFromDomainName(String domainName); static String[] getIpsFromDomainNames(String... domainNames); }### Answer: @Test public void parseIpFromUrl() throws Exception { System.out.println(HttpUtils.parseIpFromUrl("http: }
### Question: HttpUtils { public static String[] getIpsFromUrls(String... urls) throws MalformedURLException, UnknownHostException { if(urls == null \|\| urls.length == 0) return null; String[] ips = new String[urls.length]; for (int i = 0, urlsLength = urls.length; i < urlsLength; i++) { String url = urls[i]; InetAddress address = InetAddress.getByName(new URL(url).getHost()); ips[i] = address.getHostAddress(); } return ips; } static String parseIpFromUrl(String url); static String[] getIpsFromUrls(String... urls); static String getIpsFromDomainName(String domainName); static String[] getIpsFromDomainNames(String... domainNames); }### Answer: @Test public void getIpsFormUrls() throws Exception { System.out.println(Arrays.toString(HttpUtils.getIpsFromUrls("http: }
### Question: HttpUtils { public static String[] getIpsFromDomainNames(String... domainNames) throws UnknownHostException { if(domainNames == null \|\| domainNames.length == 0) return null; String[] ips = new String[domainNames.length]; for (int i = 0, urlsLength = domainNames.length; i < urlsLength; i++) { String url = "http: try { InetAddress address = InetAddress.getByName(new URL(url).getHost()); ips[i] = address.getHostAddress(); } catch (MalformedURLException e) { throw new RuntimeException(e); } } return ips; } static String parseIpFromUrl(String url); static String[] getIpsFromUrls(String... urls); static String getIpsFromDomainName(String domainName); static String[] getIpsFromDomainNames(String... domainNames); }### Answer: @Test public void getIpsFormDomainNames() throws Exception { System.out.println(Arrays.toString(HttpUtils.getIpsFromDomainNames("timeyang.com", "github.com"))); }
### Question: ReflectionUtils { public static List<String> getReturnTypeParameters(Method method) { List<String> typeParameters = new ArrayList<>(); Type type = method.getGenericReturnType(); String typeName = type.getTypeName(); Pattern p = Pattern.compile("<((\\S+\\.?),?\\s*)>"); Matcher m = p.matcher(typeName); while (m.find()) { typeParameters.add(m.group(2)); } return typeParameters; } static List<String> getReturnTypeParameters(Method method); static String getTypeName(Method method); static String getInnermostType(Method method); static Class<?> getInnermostTypeClass(Method method); static String getInnermostType(Field field); static Class<?> getInnermostTypeClass(Field field); static String getFieldNameForGetter(String methodName); static String getFieldNameForGetter(Method method); static Object invokeMethod(Object target, String methodName, Class<?>[] parameterTypes, Object... params); static Object getAnnotatedFieldValue(Object target, Class<? extends Annotation> annotation); static Field getAnnotatedField(Class<?> clazz, String fieldName, Class<? extends Annotation> annotation); static T getFieldAnnotation(Class<?> clazz, String fieldName, Class<T> annotationClass); static Object getAnnotatedMethodReturnValue(Object target, Class<? extends Annotation> annotation); }### Answer: @Test public void getReturnTypeParameters() throws Exception { Method method = PersonGroup.class.getDeclaredMethod("getPersons"); ReflectionUtils.getReturnTypeParameters(method); }
### Question: ReflectionUtils { public static String getInnermostType(Method method) { Type type = method.getGenericReturnType(); String typeName = type.getTypeName(); String[] types = typeName.split(",\\s*\|<\|<\|>+"); return types[types.length - 1]; } static List<String> getReturnTypeParameters(Method method); static String getTypeName(Method method); static String getInnermostType(Method method); static Class<?> getInnermostTypeClass(Method method); static String getInnermostType(Field field); static Class<?> getInnermostTypeClass(Field field); static String getFieldNameForGetter(String methodName); static String getFieldNameForGetter(Method method); static Object invokeMethod(Object target, String methodName, Class<?>[] parameterTypes, Object... params); static Object getAnnotatedFieldValue(Object target, Class<? extends Annotation> annotation); static Field getAnnotatedField(Class<?> clazz, String fieldName, Class<? extends Annotation> annotation); static T getFieldAnnotation(Class<?> clazz, String fieldName, Class<T> annotationClass); static Object getAnnotatedMethodReturnValue(Object target, Class<? extends Annotation> annotation); }### Answer: @Test public void getActualReturnType() throws Exception { Method method1 = ComplexEntity.class.getDeclaredMethod("getCars"); System.out.println(ReflectionUtils.getInnermostType(method1)); Method method2 = ComplexEntity.class.getDeclaredMethod("getBooks"); System.out.println(ReflectionUtils.getInnermostType(method2)); }
### Question: SimpleClassUtils { static Class[] getClasses(String packageName) throws ClassNotFoundException, IOException { ClassLoader classLoader = Thread.currentThread().getContextClassLoader(); assert classLoader != null; String path = packageName.replace('.', '/'); Enumeration<URL> resources = classLoader.getResources(path); List<File> dirs = new ArrayList<>(); while (resources.hasMoreElements()) { URL resource = resources.nextElement(); dirs.add(new File(resource.getFile())); } ArrayList<Class> classes = new ArrayList<>(); for (File directory : dirs) { classes.addAll(findClasses(directory, packageName)); } return classes.toArray(new Class[classes.size()]); } }### Answer: @Test public void testGetClasses() throws IOException, ClassNotFoundException { Class[] classes = SimpleClassUtils.getClasses("com.timeyang.search.entity"); for (Class c : classes) { System.out.println(c); } for (Class c : SimpleClassUtils.getClasses("com.fasterxml.jackson.databind.module")) { System.out.println(c); } }
### Question: ClassUtils { static Set<Class<?>> getClasses(String packageName) { List<ClassLoader> classLoadersList = new LinkedList<>(); classLoadersList.add(ClasspathHelper.contextClassLoader()); classLoadersList.add(ClasspathHelper.staticClassLoader()); Reflections reflections = new Reflections(new ConfigurationBuilder() .setScanners(new SubTypesScanner(false ), new ResourcesScanner()) .setUrls(ClasspathHelper.forClassLoader(classLoadersList.toArray(new ClassLoader[0]))) .filterInputsBy(new FilterBuilder().include(FilterBuilder.prefix(packageName)))); Set<Class<?>> classes = reflections.getSubTypesOf(Object.class); return classes; } static Set<Class<?>> getAnnotatedClasses(String packageName, Class<? extends Annotation> annotation); }### Answer: @Test public void getCLasses() { ClassUtils.getClasses("com.timeyang.search.entity").forEach(System.out::println); ClassUtils.getClasses("com.fasterxml.jackson.databind.module").forEach(System.out::println); }
### Question: ExceptionStack implements Serializable { public Collection<Throwable> getCauseElements() { return Collections.unmodifiableCollection(this.causes); } ExceptionStack(); ExceptionStack(final Throwable exception); @Deprecated protected ExceptionStack(final Collection<Throwable> causeChainElements, final int currentElementIndex); Collection<Throwable> getCauseElements(); boolean isLast(); Throwable getNext(); Collection<Throwable> getRemaining(); boolean isRoot(); Throwable getCurrent(); void setCauseElements(Collection<Throwable> elements); Deque<ExceptionStackItem> getOrigExceptionStackItems(); }### Answer: @Test public void testSQLExceptionUnwrap() { SQLTransactionRollbackException transactionRollbackException = new SQLTransactionRollbackException(); SQLRecoverableException recoverableException = new SQLRecoverableException(); SQLSyntaxErrorException syntaxErrorException = new SQLSyntaxErrorException(); recoverableException.setNextException(syntaxErrorException); transactionRollbackException.setNextException(recoverableException); Throwable e = new Exception(transactionRollbackException); ExceptionStack es = new ExceptionStack(e); assertThat(es.getCauseElements().size(), is(4)); assertThat(es.getCauseElements(), hasItems(e, transactionRollbackException, recoverableException, syntaxErrorException)); }
### Question: RouteService { public Schema route(String sql) { SQLStatement sqlStatement = SQLUtils.parseSingleMysqlStatement(sql); return null; } RouteService(MetadataManager metadataManager); static RouteService create(MetadataManager metadataManager); Schema route(String sql); }### Answer: @Test public void test(){ String sql = "select 1"; String text = route(sql); Assert.assertSame(text,""); }
### Question: GPatternUTF8Lexer { public void init(String text) { ByteBuffer byteBuffer = StandardCharsets.UTF_8.encode(text); init(byteBuffer, 0, byteBuffer.limit()); } GPatternUTF8Lexer(GPatternIdRecorder idRecorder); void init(String text); void init(ByteBuffer buffer, int startOffset, int limit); boolean nextToken(); boolean hasChar(); int peekAsciiChar(int step); int nextChar(); String getCurTokenString(); String getString(int start, int end); boolean fastEquals(int startOffset, int endOffset, byte[] symbol); static final int DEMO; static int ignorelength; }### Answer: @Test public void init() { GPatternIdRecorder recorder = new GPatternIdRecorderImpl(false); recorder.load(Collections.emptySet()); GPatternUTF8Lexer utf8Lexer = new GPatternUTF8Lexer(recorder); String text = "1234 abc 1a2b3c 'a哈哈哈哈1' `qac`"; utf8Lexer.init(text); Assert.assertTrue(utf8Lexer.nextToken()); Assert.assertEquals("1234", utf8Lexer.getCurTokenString()); Assert.assertTrue(utf8Lexer.nextToken()); Assert.assertEquals("abc", utf8Lexer.getCurTokenString()); Assert.assertTrue(utf8Lexer.nextToken()); Assert.assertEquals("1a2b3c", utf8Lexer.getCurTokenString()); Assert.assertTrue(utf8Lexer.nextToken()); Assert.assertEquals("'a哈哈哈哈1'", utf8Lexer.getCurTokenString()); Assert.assertTrue(utf8Lexer.nextToken()); Assert.assertEquals("`qac`", utf8Lexer.getCurTokenString()); }
### Question: HttpLoader { public LoadedXml load(final String url, final int timeout) { try { final InputStream stream = loadAsStream(url, timeout); final DocumentBuilder builder = DOCUMENT_BUILDER_FACTORY.newDocumentBuilder(); final Document document = builder.parse(stream); return new LoadedXml(document); } catch (SocketTimeoutException e) { return LoadedXml.EMPTY_XML; } catch (IOException e) { log.error("Error while processing url: " + url, e); } catch (ParserConfigurationException e) { log.error("Error while processing url: " + url, e); } catch (SAXException e) { log.error("Error while processing url: " + url, e); } return LoadedXml.EMPTY_XML; } HttpLoader(); InputStream loadAsStream(final String url, final int timeout, final Map<String, List<String>> params); InputStream loadAsStream(final String url, final int timeout, final Map<String, List<String>> params, final Map<String, String> headers); HttpMethodResult loadAsStreamWithHeaders(final String url, final int timeout, final Map<String, List<String>> params); HttpMethodResult loadAsStreamWithHeaders(final String url, final int timeout, final Map<String, List<String>> params, final Map<String, String> headers); InputStream loadAsStream(final String url, final int timeout); LoadedXml load(final String url, final int timeout); }### Answer: @Test public void testTimeout() throws Throwable { HttpLoader httpLoader = new HttpLoader(); final LoadedXml loadedXml = httpLoader.load("http: assertTrue(loadedXml.isEmpty()); } @Test public void testNonTimeout() throws Throwable { HttpLoader httpLoader = new HttpLoader(); final LoadedXml loadedXml = httpLoader.load("http: assertFalse(loadedXml.isEmpty()); }
### Question: YaletProcessor { public void process(final HttpServletRequest req, final HttpServletResponse res, final String realPath) throws UnsupportedEncodingException, ServletException { req.setCharacterEncoding(encoding); res.setCharacterEncoding(encoding); log.info("Start process user request => {" + realPath + "}, remote ip => {" + req.getRemoteAddr() + "}, method=" + req.getMethod()); final long startTime = System.currentTimeMillis(); final InternalRequest internalRequest = yaletSupport.createRequest(req, realPath); final InternalResponse internalResponse = yaletSupport.createResponse(res); process(internalRequest, internalResponse, new RedirHandler(res)); log.info("Processing time for user request => {" + realPath + "} is " + (System.currentTimeMillis() - startTime) + " ms"); } @Required void setYaletSupport(final YaletSupport yaletSupport); void setEncoding(final String encoding); void process(final HttpServletRequest req, final HttpServletResponse res, final String realPath); }### Answer: @Test public void testProcessFile() throws Exception { request = new SimpleInternalRequest(null, "./xfresh-core/src/test/resources/test.xml"); request.setNeedTransform(false); yaletProcessor.process(request, response, new RedirHandler(null)); assertEquals(TEST_CONTENT, new String(baos.toByteArray()).trim()); } @Test public void testTransformFile() throws Exception { request = new SimpleInternalRequest(null, "./xfresh-core/src/test/resources/test.xml"); yaletProcessor.process(request, response, new RedirHandler(null)); assertEquals(TEST_TRANSFORMED_CONTENT.toLowerCase(), new String(baos.toByteArray()).trim().toLowerCase()); } @Test public void testTransformXFile() throws Exception { request = new SimpleInternalRequest(null, "./xfresh-core/src/test/resources/xtest.xml"); yaletProcessor.process(request, response, new RedirHandler(null)); assertEquals(TEST_CONTENT, new String(baos.toByteArray()).trim()); }
### Question: DbUserService implements UserService { public long addUser(final String login, final String fio, final String passwd, final String passwdAdd) throws UserCreationException { final UserInfo user = getUser(login); if (user != null) { throw new UserCreationException(UserCreationException.Type.ALREADY_EXISTS); } try { jdbcTemplate.update( "insert into auth_user (login, fio, passwd_hash, passwd_add) " + "values (?,?,?,?)", login, fio, passwd, passwdAdd ); return getLastInsertId(); } catch (Exception e) { throw new UserCreationException(UserCreationException.Type.INTERNAL_ERROR); } } @Required void setJdbcTemplate(final SimpleJdbcTemplate jdbcTemplate); long addUser(final String login, final String fio, final String passwd, final String passwdAdd); void updateUserInfo(final UserInfo userInfo); boolean checkUser(final long userId, final String passwd); UserInfo getUser(final long userId); UserInfo getUser(final String login); }### Answer: @Test public void testAddUser() throws Exception { final long userId = createUser(); assertEquals(1, removeUser(userId)); }
### Question: DbUserService implements UserService { public UserInfo getUser(final long userId) { final List<UserInfo> users = jdbcTemplate.query( "select * from auth_user where user_id = ?", USER_INFO_MAPPER, userId); if (users.isEmpty()) { return null; } return users.get(0); } @Required void setJdbcTemplate(final SimpleJdbcTemplate jdbcTemplate); long addUser(final String login, final String fio, final String passwd, final String passwdAdd); void updateUserInfo(final UserInfo userInfo); boolean checkUser(final long userId, final String passwd); UserInfo getUser(final long userId); UserInfo getUser(final String login); }### Answer: @Test public void testGetUser() throws Exception { final long userId = createUser(); final UserInfo userInfo = dbUserService.getUser(userId); assertEquals("xxx", userInfo.getLogin()); assertEquals("x x", userInfo.getFio()); assertEquals("123", userInfo.getPasswdHash()); assertEquals("11", userInfo.getPasswdAdd()); assertEquals(1, removeUser(userId)); }
### Question: DbUserService implements UserService { public boolean checkUser(final long userId, final String passwd) { return 0 < jdbcTemplate.queryForInt( "select count() from auth_user where user_id = ? and passwd_hash = ?", userId, passwd ); } @Required void setJdbcTemplate(final SimpleJdbcTemplate jdbcTemplate); long addUser(final String login, final String fio, final String passwd, final String passwdAdd); void updateUserInfo(final UserInfo userInfo); boolean checkUser(final long userId, final String passwd); UserInfo getUser(final long userId); UserInfo getUser(final String login); }### Answer: @Test public void testCheckUser() throws Exception { final long userId = createUser(); assertTrue(dbUserService.checkUser(userId, "123")); assertFalse(dbUserService.checkUser(userId 2, "11")); assertFalse(dbUserService.checkUser(userId * 3, "123")); assertFalse(dbUserService.checkUser(userId, null)); assertFalse(dbUserService.checkUser(userId * 5, null)); assertEquals(1, removeUser(userId)); }
### Question: Minimizer implements IMinimizer { @Override public void setCacheDir(File dir) { checkInitialize_(false); cache_ = new FileCache(dir); } Minimizer(ResourceType type); @Inject Minimizer(ICompressor compressor, ResourceType type); @Override void enableDisableMinimize(boolean enable); @Override void enableDisableCompress(boolean enable); @Override void enableDisableCache(boolean enable); @Override void enableDisableInMemoryCache(boolean enable); @Override void enableDisableProcessInline(boolean enable); @Deprecated void enableDisableVerifyResource(boolean verify); @Override boolean isMinimizeEnabled(); @Override boolean isCompressEnabled(); @Override boolean isCacheEnabled(); @Override void setResourceDir(String dir); @Override void setRootDir(String dir); @Override void setUrlContextPath(String ctxPath); @Override void setCacheDir(File dir); @Override void setResourceUrlRoot(String urlRoot); @Override void setResourceUrlPath(String urlPath); @Override void setCacheUrlPath(String urlPath); @Override void clearCache(); @Override void setFileLocator(IFileLocator fileLocator); @Override void setBufferLocator(IBufferLocator bufferLocator); @Override void setRouteMapper(IRouteMapper routeMapper); @Override long getLastModified(File file); @Override void checkCache(); @Override List<String> process(List<String> resourceNames); @Override List<String> processWithoutMinimize(List<String> resourceNames); @Override String processInline(String content); @Override String processStatic(File file); IResource minimize(String resourceNames); static void copy_(Reader in, Writer out); ResourceType getType(); void setResourcesParam(String resourcesParam_); static final String SYS_PROP_LESS_ENABLED; static final String SYS_PROP_COFFEE_ENABLED; }### Answer: @Test(expected = IllegalStateException.class) public void testInvalidSetup() { jm.setCacheDir(cacheDir); }
### Question: EmailSender { void sendEmail(String to, String from, String title, String content) { SimpleMailMessage mail = new SimpleMailMessage(); mail.setTo(to); mail.setFrom(from); mail.setSubject(title); mail.setText(content); javaMailSender.send(mail); } EmailSender(JavaMailSender javaMailSender); }### Answer: @Test public void shouldSendEmail() throws Exception { String to = "test@codecouple.pl"; String from = "blog@codecouple.pl"; String title = "Title"; String content = "Content"; emailSender.sendEmail(to, from, title, content); MimeMessage[] receivedMessages = server.getReceivedMessages(); assertThat(receivedMessages.length).isEqualTo(1); MimeMessage receivedMessage = receivedMessages[0]; assertThat(receivedMessage.getAllRecipients()[0].toString()).isEqualTo(to); assertThat(receivedMessage.getFrom()[0].toString()).isEqualTo(from); assertThat(receivedMessage.getSubject()).isEqualTo(title); assertThat(receivedMessage.getContent().toString()).contains(content); assertThat(content).isEqualTo(GreenMailUtil.getBody(server.getReceivedMessages()[0])); }
### Question: MerlinFlowable { public static Flowable<NetworkStatus> from(Context context) { return from(context, new Merlin.Builder()); } static Flowable<NetworkStatus> from(Context context); static Flowable<NetworkStatus> from(Context context, MerlinBuilder merlinBuilder); static Flowable<NetworkStatus> from(Merlin merlin); }### Answer: @Test public void unbindWhenDisposed() { Disposable disposable = MerlinFlowable.from(merlin) .subscribe(); disposable.dispose(); verify(merlin).unbind(); } @Test public void notCrashWhenCreatingWithAMerlinBuilderWithoutCallbacks() { Context context = mock(Context.class); Merlin.Builder merlinBuilder = new Merlin.Builder(); MerlinFlowable.from(context, merlinBuilder).subscribe(); }
### Question: Registrar { void clearRegistrations() { if (connectables != null) { connectables.clear(); } if (disconnectables != null) { disconnectables.clear(); } if (bindables != null) { bindables.clear(); } } Registrar(Register<Connectable> connectables, Register<Disconnectable> disconnectables, Register<Bindable> bindables); }### Answer: @Test public void givenMissingDisconnectables_whenClearingRegistrations_thenDoesNothing() { registrar = new Registrar(connectables, null, bindables); registrar.clearRegistrations(); verifyZeroInteractions(disconnectables); } @Test public void givenMissingBindables_whenClearingRegistrations_thenDoesNothing() { registrar = new Registrar(connectables, disconnectables, null); registrar.clearRegistrations(); verifyZeroInteractions(bindables); } @Test public void whenClearingRegistrations_thenDelegatesClearingToRegisters() { registrar.clearRegistrations(); verify(connectables).clear(); verify(disconnectables).clear(); verify(bindables).clear(); } @Test public void givenMissingConnectables_whenClearingRegistrations_thenDoesNothing() { registrar = new Registrar(null, disconnectables, bindables); registrar.clearRegistrations(); verifyZeroInteractions(connectables); }
### Question: Ping { boolean doSynchronousPing() { Logger.d("Pinging: " + endpoint); try { return validator.isResponseCodeValid(responseCodeFetcher.from(endpoint)); } catch (RequestException e) { if (!e.causedByIO()) { Logger.e("Ping task failed due to " + e.getMessage()); } return false; } } Ping(Endpoint endpoint, EndpointPinger.ResponseCodeFetcher responseCodeFetcher, ResponseCodeValidator validator); }### Answer: @Test public void givenSuccessfulRequest_whenSynchronouslyPinging_thenChecksResponseCodeIsValid() { given(responseCodeFetcher.from(ENDPOINT)).willReturn(RESPONSE_CODE); ping.doSynchronousPing(); verify(responseCodeValidator).isResponseCodeValid(RESPONSE_CODE); } @Test public void givenSuccessfulRequest_whenSynchronouslyPinging_thenReturnsTrue() { given(responseCodeFetcher.from(ENDPOINT)).willReturn(RESPONSE_CODE); given(responseCodeValidator.isResponseCodeValid(RESPONSE_CODE)).willReturn(true); boolean isSuccess = ping.doSynchronousPing(); assertThat(isSuccess).isTrue(); } @Test public void givenRequestFailsWithIOException_whenSynchronouslyPinging_thenReturnsFalse() { given(responseCodeFetcher.from(ENDPOINT)).willThrow(new RequestException(new IOException())); boolean isSuccess = ping.doSynchronousPing(); assertThat(isSuccess).isFalse(); } @Test public void givenRequestFailsWithRuntimeException_whenSynchronouslyPinging_thenReturnsFalse() { given(responseCodeFetcher.from(ENDPOINT)).willThrow(new RequestException(new RuntimeException())); boolean isSuccess = ping.doSynchronousPing(); assertThat(isSuccess).isFalse(); }