text: // Copyright 2007, Google Inc.
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  // in the documentation and/or other materials provided with the
  // distribution.
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  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  // Google Mock - a framework for writing C++ mock classes.
  //
  // This file tests the built-in actions in gmock-actions.h.
  
  #include <functional>
  #include <memory>
  #include <sstream>
  #include <string>
  
  #include "gmock/gmock-actions.h"
  #include "gmock/gmock.h"
  #include "gtest/gtest-spi.h"
  #include "gtest/gtest.h"
  
  namespace testing {
  namespace gmock_more_actions_test {
  
  using ::std::plus;
  using ::std::string;
  using testing::_;
  using testing::Action;
  using testing::ActionInterface;
  using testing::DeleteArg;
  using testing::Invoke;
  using testing::Return;
  using testing::ReturnArg;
  using testing::ReturnPointee;
  using testing::SaveArg;
  using testing::SaveArgPointee;
  using testing::SetArgReferee;
  using testing::Unused;
  using testing::WithArg;
  using testing::WithoutArgs;
  
  // For suppressing compiler warnings on conversion possibly losing precision.
  inline short Short(short n) { return n; }  // NOLINT
  inline char Char(char ch) { return ch; }
  
  // Sample functions and functors for testing Invoke() and etc.
  int Nullary() { return 1; }
  
  class NullaryFunctor {
   public:
    int operator()() { return 2; }
  };
  
  bool g_done = false;
  void VoidNullary() { g_done = true; }
  
  class VoidNullaryFunctor {
   public:
    void operator()() { g_done = true; }
  };
  
  bool Unary(int x) { return x < 0; }
  
  const char* Plus1(const char* s) { return s + 1; }
  
  void VoidUnary(int /* n */) { g_done = true; }
  
  bool ByConstRef(const std::string& s) { return s == "Hi"; }
  
  const double g_double = 0;
  bool ReferencesGlobalDouble(const double& x) { return &x == &g_double; }
  
  std::string ByNonConstRef(std::string& s) { return s += "+"; }  // NOLINT
  
  struct UnaryFunctor {
    int operator()(bool x) { return x ? 1 : -1; }
  };
  
  const char* Binary(const char* input, short n) { return input + n; }  // NOLINT
  
  void VoidBinary(int, char) { g_done = true; }
  
  int Ternary(int x, char y, short z) { return x + y + z; }  // NOLINT
  
  void VoidTernary(int, char, bool) { g_done = true; }
  
  int SumOf4(int a, int b, int c, int d) { return a + b + c + d; }
  
  int SumOfFirst2(int a, int b, Unused, Unused) { return a + b; }
  
  void VoidFunctionWithFourArguments(char, int, float, double) { g_done = true; }
  
  std::string Concat4(const char* s1, const char* s2, const char* s3,
                      const char* s4) {
    return std::string(s1) + s2 + s3 + s4;
  }
  
  int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
  
  struct SumOf5Functor {
    int operator()(int a, int b, int c, int d, int e) {
      return a + b + c + d + e;
    }
  };
  
  std::string Concat5(const char* s1, const char* s2, const char* s3,
                      const char* s4, const char* s5) {
    return std::string(s1) + s2 + s3 + s4 + s5;
  }
  
  int SumOf6(int a, int b, int c, int d, int e, int f) {
    return a + b + c + d + e + f;
  }
  
  struct SumOf6Functor {
    int operator()(int a, int b, int c, int d, int e, int f) {
      return a + b + c + d + e + f;
    }
  };
  
  std::string Concat6(const char* s1, const char* s2, const char* s3,
                      const char* s4, const char* s5, const char* s6) {
    return std::string(s1) + s2 + s3 + s4 + s5 + s6;
  }
  
  std::string Concat7(const char* s1, const char* s2, const char* s3,
                      const char* s4, const char* s5, const char* s6,
                      const char* s7) {
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
  }
  
  std::string Concat8(const char* s1, const char* s2, const char* s3,
                      const char* s4, const char* s5, const char* s6,
                      const char* s7, const char* s8) {
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
  }
  
  std::string Concat9(const char* s1, const char* s2, const char* s3,
                      const char* s4, const char* s5, const char* s6,
                      const char* s7, const char* s8, const char* s9) {
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
  }
  
  std::string Concat10(const char* s1, const char* s2, const char* s3,
                       const char* s4, const char* s5, const char* s6,
                       const char* s7, const char* s8, const char* s9,
                       const char* s10) {
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
  }
  
  class Foo {
   public:
    Foo() : value_(123) {}
  
    int Nullary() const { return value_; }
  
    short Unary(long x) { return static_cast<short>(value_ + x); }  // NOLINT
  
    std::string Binary(const std::string& str, char c) const { return str + c; }
  
    int Ternary(int x, bool y, char z) { return value_ + x + y*z; }
  
    int SumOf4(int a, int b, int c, int d) const {
      return a + b + c + d + value_;
    }
  
    int SumOfLast2(Unused, Unused, int a, int b) const { return a + b; }
  
    int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
  
    int SumOf6(int a, int b, int c, int d, int e, int f) {
      return a + b + c + d + e + f;
    }
  
    std::string Concat7(const char* s1, const char* s2, const char* s3,
                        const char* s4, const char* s5, const char* s6,
                        const char* s7) {
      return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
    }
  
    std::string Concat8(const char* s1, const char* s2, const char* s3,
                        const char* s4, const char* s5, const char* s6,
                        const char* s7, const char* s8) {
      return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
    }
  
    std::string Concat9(const char* s1, const char* s2, const char* s3,
                        const char* s4, const char* s5, const char* s6,
                        const char* s7, const char* s8, const char* s9) {
      return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
    }
  
    std::string Concat10(const char* s1, const char* s2, const char* s3,
                         const char* s4, const char* s5, const char* s6,
                         const char* s7, const char* s8, const char* s9,
                         const char* s10) {
      return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
    }
  
   private:
    int value_;
  };
  
  // Tests using Invoke() with a nullary function.
  TEST(InvokeTest, Nullary) {
    Action<int()> a = Invoke(Nullary);  // NOLINT
    EXPECT_EQ(1, a.Perform(std::make_tuple()));
  }
  
  // Tests using Invoke() with a unary function.
  TEST(InvokeTest, Unary) {
    Action<bool(int)> a = Invoke(Unary);  // NOLINT
    EXPECT_FALSE(a.Perform(std::make_tuple(1)));
    EXPECT_TRUE(a.Perform(std::make_tuple(-1)));
  }
  
  // Tests using Invoke() with a binary function.
  TEST(InvokeTest, Binary) {
    Action<const char*(const char*, short)> a = Invoke(Binary);  // NOLINT
    const char* p = "Hello";
    EXPECT_EQ(p + 2, a.Perform(std::make_tuple(p, Short(2))));
  }
  
  // Tests using Invoke() with a ternary function.
  TEST(InvokeTest, Ternary) {
    Action<int(int, char, short)> a = Invoke(Ternary);  // NOLINT
    EXPECT_EQ(6, a.Perform(std::make_tuple(1, '\2', Short(3))));
  }
  
  // Tests using Invoke() with a 4-argument function.
  TEST(InvokeTest, FunctionThatTakes4Arguments) {
    Action<int(int, int, int, int)> a = Invoke(SumOf4);  // NOLINT
    EXPECT_EQ(1234, a.Perform(std::make_tuple(1000, 200, 30, 4)));
  }
  
  // Tests using Invoke() with a 5-argument function.
  TEST(InvokeTest, FunctionThatTakes5Arguments) {
    Action<int(int, int, int, int, int)> a = Invoke(SumOf5);  // NOLINT
    EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5)));
  }
  
  // Tests using Invoke() with a 6-argument function.
  TEST(InvokeTest, FunctionThatTakes6Arguments) {
    Action<int(int, int, int, int, int, int)> a = Invoke(SumOf6);  // NOLINT
    EXPECT_EQ(123456,
              a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6)));
  }
  
  // A helper that turns the type of a C-string literal from const
  // char[N] to const char*.
  inline const char* CharPtr(const char* s) { return s; }
  
  // Tests using Invoke() with a 7-argument function.
  TEST(InvokeTest, FunctionThatTakes7Arguments) {
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*)>
        a = Invoke(Concat7);
    EXPECT_EQ("1234567",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"))));
  }
  
  // Tests using Invoke() with a 8-argument function.
  TEST(InvokeTest, FunctionThatTakes8Arguments) {
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*)>
        a = Invoke(Concat8);
    EXPECT_EQ("12345678",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"), CharPtr("8"))));
  }
  
  // Tests using Invoke() with a 9-argument function.
  TEST(InvokeTest, FunctionThatTakes9Arguments) {
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*,
                       const char*)>
        a = Invoke(Concat9);
    EXPECT_EQ("123456789", a.Perform(std::make_tuple(
                               CharPtr("1"), CharPtr("2"), CharPtr("3"),
                               CharPtr("4"), CharPtr("5"), CharPtr("6"),
                               CharPtr("7"), CharPtr("8"), CharPtr("9"))));
  }
  
  // Tests using Invoke() with a 10-argument function.
  TEST(InvokeTest, FunctionThatTakes10Arguments) {
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*,
                       const char*, const char*)>
        a = Invoke(Concat10);
    EXPECT_EQ("1234567890",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"), CharPtr("8"), CharPtr("9"),
                                        CharPtr("0"))));
  }
  
  // Tests using Invoke() with functions with parameters declared as Unused.
  TEST(InvokeTest, FunctionWithUnusedParameters) {
    Action<int(int, int, double, const std::string&)> a1 = Invoke(SumOfFirst2);
    std::tuple<int, int, double, std::string> dummy =
        std::make_tuple(10, 2, 5.6, std::string("hi"));
    EXPECT_EQ(12, a1.Perform(dummy));
  
    Action<int(int, int, bool, int*)> a2 =
        Invoke(SumOfFirst2);
    EXPECT_EQ(
        23, a2.Perform(std::make_tuple(20, 3, true, static_cast<int*>(nullptr))));
  }
  
  // Tests using Invoke() with methods with parameters declared as Unused.
  TEST(InvokeTest, MethodWithUnusedParameters) {
    Foo foo;
    Action<int(std::string, bool, int, int)> a1 = Invoke(&foo, &Foo::SumOfLast2);
    EXPECT_EQ(12, a1.Perform(std::make_tuple(CharPtr("hi"), true, 10, 2)));
  
    Action<int(char, double, int, int)> a2 =
        Invoke(&foo, &Foo::SumOfLast2);
    EXPECT_EQ(23, a2.Perform(std::make_tuple('a', 2.5, 20, 3)));
  }
  
  // Tests using Invoke() with a functor.
  TEST(InvokeTest, Functor) {
    Action<long(long, int)> a = Invoke(plus<long>());  // NOLINT
    EXPECT_EQ(3L, a.Perform(std::make_tuple(1, 2)));
  }
  
  // Tests using Invoke(f) as an action of a compatible type.
  TEST(InvokeTest, FunctionWithCompatibleType) {
    Action<long(int, short, char, bool)> a = Invoke(SumOf4);  // NOLINT
    EXPECT_EQ(4321, a.Perform(std::make_tuple(4000, Short(300), Char(20), true)));
  }
  
  // Tests using Invoke() with an object pointer and a method pointer.
  
  // Tests using Invoke() with a nullary method.
  TEST(InvokeMethodTest, Nullary) {
    Foo foo;
    Action<int()> a = Invoke(&foo, &Foo::Nullary);  // NOLINT
    EXPECT_EQ(123, a.Perform(std::make_tuple()));
  }
  
  // Tests using Invoke() with a unary method.
  TEST(InvokeMethodTest, Unary) {
    Foo foo;
    Action<short(long)> a = Invoke(&foo, &Foo::Unary);  // NOLINT
    EXPECT_EQ(4123, a.Perform(std::make_tuple(4000)));
  }
  
  // Tests using Invoke() with a binary method.
  TEST(InvokeMethodTest, Binary) {
    Foo foo;
    Action<std::string(const std::string&, char)> a = Invoke(&foo, &Foo::Binary);
    std::string s("Hell");
    std::tuple<std::string, char> dummy = std::make_tuple(s, 'o');
    EXPECT_EQ("Hello", a.Perform(dummy));
  }
  
  // Tests using Invoke() with a ternary method.
  TEST(InvokeMethodTest, Ternary) {
    Foo foo;
    Action<int(int, bool, char)> a = Invoke(&foo, &Foo::Ternary);  // NOLINT
    EXPECT_EQ(1124, a.Perform(std::make_tuple(1000, true, Char(1))));
  }
  
  // Tests using Invoke() with a 4-argument method.
  TEST(InvokeMethodTest, MethodThatTakes4Arguments) {
    Foo foo;
    Action<int(int, int, int, int)> a = Invoke(&foo, &Foo::SumOf4);  // NOLINT
    EXPECT_EQ(1357, a.Perform(std::make_tuple(1000, 200, 30, 4)));
  }
  
  // Tests using Invoke() with a 5-argument method.
  TEST(InvokeMethodTest, MethodThatTakes5Arguments) {
    Foo foo;
    Action<int(int, int, int, int, int)> a = Invoke(&foo, &Foo::SumOf5);  // NOLINT
    EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5)));
  }
  
  // Tests using Invoke() with a 6-argument method.
  TEST(InvokeMethodTest, MethodThatTakes6Arguments) {
    Foo foo;
    Action<int(int, int, int, int, int, int)> a =  // NOLINT
        Invoke(&foo, &Foo::SumOf6);
    EXPECT_EQ(123456,
              a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6)));
  }
  
  // Tests using Invoke() with a 7-argument method.
  TEST(InvokeMethodTest, MethodThatTakes7Arguments) {
    Foo foo;
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*)>
        a = Invoke(&foo, &Foo::Concat7);
    EXPECT_EQ("1234567",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"))));
  }
  
  // Tests using Invoke() with a 8-argument method.
  TEST(InvokeMethodTest, MethodThatTakes8Arguments) {
    Foo foo;
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*)>
        a = Invoke(&foo, &Foo::Concat8);
    EXPECT_EQ("12345678",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"), CharPtr("8"))));
  }
  
  // Tests using Invoke() with a 9-argument method.
  TEST(InvokeMethodTest, MethodThatTakes9Arguments) {
    Foo foo;
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*,
                       const char*)>
        a = Invoke(&foo, &Foo::Concat9);
    EXPECT_EQ("123456789", a.Perform(std::make_tuple(
                               CharPtr("1"), CharPtr("2"), CharPtr("3"),
                               CharPtr("4"), CharPtr("5"), CharPtr("6"),
                               CharPtr("7"), CharPtr("8"), CharPtr("9"))));
  }
  
  // Tests using Invoke() with a 10-argument method.
  TEST(InvokeMethodTest, MethodThatTakes10Arguments) {
    Foo foo;
    Action<std::string(const char*, const char*, const char*, const char*,
                       const char*, const char*, const char*, const char*,
                       const char*, const char*)>
        a = Invoke(&foo, &Foo::Concat10);
    EXPECT_EQ("1234567890",
              a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                        CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                        CharPtr("7"), CharPtr("8"), CharPtr("9"),
                                        CharPtr("0"))));
  }
  
  // Tests using Invoke(f) as an action of a compatible type.
  TEST(InvokeMethodTest, MethodWithCompatibleType) {
    Foo foo;
    Action<long(int, short, char, bool)> a =  // NOLINT
        Invoke(&foo, &Foo::SumOf4);
    EXPECT_EQ(4444, a.Perform(std::make_tuple(4000, Short(300), Char(20), true)));
  }
  
  // Tests using WithoutArgs with an action that takes no argument.
  TEST(WithoutArgsTest, NoArg) {
    Action<int(int n)> a = WithoutArgs(Invoke(Nullary));  // NOLINT
    EXPECT_EQ(1, a.Perform(std::make_tuple(2)));
  }
  
  // Tests using WithArg with an action that takes 1 argument.
  TEST(WithArgTest, OneArg) {
    Action<bool(double x, int n)> b = WithArg<1>(Invoke(Unary));  // NOLINT
    EXPECT_TRUE(b.Perform(std::make_tuple(1.5, -1)));
    EXPECT_FALSE(b.Perform(std::make_tuple(1.5, 1)));
  }
  
  TEST(ReturnArgActionTest, WorksForOneArgIntArg0) {
    const Action<int(int)> a = ReturnArg<0>();
    EXPECT_EQ(5, a.Perform(std::make_tuple(5)));
  }
  
  TEST(ReturnArgActionTest, WorksForMultiArgBoolArg0) {
    const Action<bool(bool, bool, bool)> a = ReturnArg<0>();
    EXPECT_TRUE(a.Perform(std::make_tuple(true, false, false)));
  }
  
  TEST(ReturnArgActionTest, WorksForMultiArgStringArg2) {
    const Action<std::string(int, int, std::string, int)> a = ReturnArg<2>();
    EXPECT_EQ("seven", a.Perform(std::make_tuple(5, 6, std::string("seven"), 8)));
  }
  
  TEST(SaveArgActionTest, WorksForSameType) {
    int result = 0;
    const Action<void(int n)> a1 = SaveArg<0>(&result);
    a1.Perform(std::make_tuple(5));
    EXPECT_EQ(5, result);
  }
  
  TEST(SaveArgActionTest, WorksForCompatibleType) {
    int result = 0;
    const Action<void(bool, char)> a1 = SaveArg<1>(&result);
    a1.Perform(std::make_tuple(true, 'a'));
    EXPECT_EQ('a', result);
  }
  
  TEST(SaveArgPointeeActionTest, WorksForSameType) {
    int result = 0;
    const int value = 5;
    const Action<void(const int*)> a1 = SaveArgPointee<0>(&result);
    a1.Perform(std::make_tuple(&value));
    EXPECT_EQ(5, result);
  }
  
  TEST(SaveArgPointeeActionTest, WorksForCompatibleType) {
    int result = 0;
    char value = 'a';
    const Action<void(bool, char*)> a1 = SaveArgPointee<1>(&result);
    a1.Perform(std::make_tuple(true, &value));
    EXPECT_EQ('a', result);
  }
  
  TEST(SetArgRefereeActionTest, WorksForSameType) {
    int value = 0;
    const Action<void(int&)> a1 = SetArgReferee<0>(1);
    a1.Perform(std::tuple<int&>(value));
    EXPECT_EQ(1, value);
  }
  
  TEST(SetArgRefereeActionTest, WorksForCompatibleType) {
    int value = 0;
    const Action<void(int, int&)> a1 = SetArgReferee<1>('a');
    a1.Perform(std::tuple<int, int&>(0, value));
    EXPECT_EQ('a', value);
  }
  
  TEST(SetArgRefereeActionTest, WorksWithExtraArguments) {
    int value = 0;
    const Action<void(bool, int, int&, const char*)> a1 = SetArgReferee<2>('a');
    a1.Perform(std::tuple<bool, int, int&, const char*>(true, 0, value, "hi"));
    EXPECT_EQ('a', value);
  }
  
  // A class that can be used to verify that its destructor is called: it will set
  // the bool provided to the constructor to true when destroyed.
  class DeletionTester {
   public:
    explicit DeletionTester(bool* is_deleted)
      : is_deleted_(is_deleted) {
      // Make sure the bit is set to false.
      *is_deleted_ = false;
    }
  
    ~DeletionTester() {
      *is_deleted_ = true;
    }
  
   private:
    bool* is_deleted_;
  };
  
  TEST(DeleteArgActionTest, OneArg) {
    bool is_deleted = false;
    DeletionTester* t = new DeletionTester(&is_deleted);
    const Action<void(DeletionTester*)> a1 = DeleteArg<0>();      // NOLINT
    EXPECT_FALSE(is_deleted);
    a1.Perform(std::make_tuple(t));
    EXPECT_TRUE(is_deleted);
  }
  
  TEST(DeleteArgActionTest, TenArgs) {
    bool is_deleted = false;
    DeletionTester* t = new DeletionTester(&is_deleted);
    const Action<void(bool, int, int, const char*, bool,
                      int, int, int, int, DeletionTester*)> a1 = DeleteArg<9>();
    EXPECT_FALSE(is_deleted);
    a1.Perform(std::make_tuple(true, 5, 6, CharPtr("hi"), false, 7, 8, 9, 10, t));
    EXPECT_TRUE(is_deleted);
  }
  
  #if GTEST_HAS_EXCEPTIONS
  
  TEST(ThrowActionTest, ThrowsGivenExceptionInVoidFunction) {
    const Action<void(int n)> a = Throw('a');
    EXPECT_THROW(a.Perform(std::make_tuple(0)), char);
  }
  
  class MyException {};
  
  TEST(ThrowActionTest, ThrowsGivenExceptionInNonVoidFunction) {
    const Action<double(char ch)> a = Throw(MyException());
    EXPECT_THROW(a.Perform(std::make_tuple('0')), MyException);
  }
  
  TEST(ThrowActionTest, ThrowsGivenExceptionInNullaryFunction) {
    const Action<double()> a = Throw(MyException());
    EXPECT_THROW(a.Perform(std::make_tuple()), MyException);
  }
  
  class Object {
   public:
    virtual ~Object() {}
    virtual void Func() {}
  };
  
  class MockObject : public Object {
   public:
    ~MockObject() override {}
    MOCK_METHOD(void, Func, (), (override));
  };
  
  TEST(ThrowActionTest, Times0) {
    EXPECT_NONFATAL_FAILURE(
        [] {
          try {
            MockObject m;
            ON_CALL(m, Func()).WillByDefault([] { throw "something"; });
            EXPECT_CALL(m, Func()).Times(0);
            m.Func();
          } catch (...) {
            // Exception is caught but Times(0) still triggers a failure.
          }
        }(),
        "");
  }
  
  #endif  // GTEST_HAS_EXCEPTIONS
  
  // Tests that SetArrayArgument<N>(first, last) sets the elements of the array
  // pointed to by the N-th (0-based) argument to values in range [first, last).
  TEST(SetArrayArgumentTest, SetsTheNthArray) {
    typedef void MyFunction(bool, int*, char*);
    int numbers[] = { 1, 2, 3 };
    Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers + 3);
  
    int n[4] = {};
    int* pn = n;
    char ch[4] = {};
    char* pch = ch;
    a.Perform(std::make_tuple(true, pn, pch));
    EXPECT_EQ(1, n[0]);
    EXPECT_EQ(2, n[1]);
    EXPECT_EQ(3, n[2]);
    EXPECT_EQ(0, n[3]);
    EXPECT_EQ('\0', ch[0]);
    EXPECT_EQ('\0', ch[1]);
    EXPECT_EQ('\0', ch[2]);
    EXPECT_EQ('\0', ch[3]);
  
    // Tests first and last are iterators.
    std::string letters = "abc";
    a = SetArrayArgument<2>(letters.begin(), letters.end());
    std::fill_n(n, 4, 0);
    std::fill_n(ch, 4, '\0');
    a.Perform(std::make_tuple(true, pn, pch));
    EXPECT_EQ(0, n[0]);
    EXPECT_EQ(0, n[1]);
    EXPECT_EQ(0, n[2]);
    EXPECT_EQ(0, n[3]);
    EXPECT_EQ('a', ch[0]);
    EXPECT_EQ('b', ch[1]);
    EXPECT_EQ('c', ch[2]);
    EXPECT_EQ('\0', ch[3]);
  }
  
  // Tests SetArrayArgument<N>(first, last) where first == last.
  TEST(SetArrayArgumentTest, SetsTheNthArrayWithEmptyRange) {
    typedef void MyFunction(bool, int*);
    int numbers[] = { 1, 2, 3 };
    Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers);
  
    int n[4] = {};
    int* pn = n;
    a.Perform(std::make_tuple(true, pn));
    EXPECT_EQ(0, n[0]);
    EXPECT_EQ(0, n[1]);
    EXPECT_EQ(0, n[2]);
    EXPECT_EQ(0, n[3]);
  }
  
  // Tests SetArrayArgument<N>(first, last) where *first is convertible
  // (but not equal) to the argument type.
  TEST(SetArrayArgumentTest, SetsTheNthArrayWithConvertibleType) {
    typedef void MyFunction(bool, int*);
    char chars[] = { 97, 98, 99 };
    Action<MyFunction> a = SetArrayArgument<1>(chars, chars + 3);
  
    int codes[4] = { 111, 222, 333, 444 };
    int* pcodes = codes;
    a.Perform(std::make_tuple(true, pcodes));
    EXPECT_EQ(97, codes[0]);
    EXPECT_EQ(98, codes[1]);
    EXPECT_EQ(99, codes[2]);
    EXPECT_EQ(444, codes[3]);
  }
  
  // Test SetArrayArgument<N>(first, last) with iterator as argument.
  TEST(SetArrayArgumentTest, SetsTheNthArrayWithIteratorArgument) {
    typedef void MyFunction(bool, std::back_insert_iterator<std::string>);
    std::string letters = "abc";
    Action<MyFunction> a = SetArrayArgument<1>(letters.begin(), letters.end());
  
    std::string s;
    a.Perform(std::make_tuple(true, back_inserter(s)));
    EXPECT_EQ(letters, s);
  }
  
  TEST(ReturnPointeeTest, Works) {
    int n = 42;
    const Action<int()> a = ReturnPointee(&n);
    EXPECT_EQ(42, a.Perform(std::make_tuple()));
  
    n = 43;
    EXPECT_EQ(43, a.Perform(std::make_tuple()));
  }
  
  }  // namespace gmock_generated_actions_test
  }  // namespace testing
  