text: """ Tests for the unicodedata module.
  
      Written by Marc-Andre Lemburg (mal@lemburg.com).
  
      (c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
  
  """
  
  import hashlib
  from http.client import HTTPException
  import sys
  import unicodedata
  import unittest
  from test.support import open_urlresource, requires_resource, script_helper
  
  
  class UnicodeMethodsTest(unittest.TestCase):
  
      # update this, if the database changes
      expectedchecksum = 'fbdf8106a3c7c242086b0a9efa03ad4d30d5b85d'
  
      @requires_resource('cpu')
      def test_method_checksum(self):
          h = hashlib.sha1()
          for i in range(sys.maxunicode + 1):
              char = chr(i)
              data = [
                  # Predicates (single char)
                  "01"[char.isalnum()],
                  "01"[char.isalpha()],
                  "01"[char.isdecimal()],
                  "01"[char.isdigit()],
                  "01"[char.islower()],
                  "01"[char.isnumeric()],
                  "01"[char.isspace()],
                  "01"[char.istitle()],
                  "01"[char.isupper()],
  
                  # Predicates (multiple chars)
                  "01"[(char + 'abc').isalnum()],
                  "01"[(char + 'abc').isalpha()],
                  "01"[(char + '123').isdecimal()],
                  "01"[(char + '123').isdigit()],
                  "01"[(char + 'abc').islower()],
                  "01"[(char + '123').isnumeric()],
                  "01"[(char + ' \t').isspace()],
                  "01"[(char + 'abc').istitle()],
                  "01"[(char + 'ABC').isupper()],
  
                  # Mappings (single char)
                  char.lower(),
                  char.upper(),
                  char.title(),
  
                  # Mappings (multiple chars)
                  (char + 'abc').lower(),
                  (char + 'ABC').upper(),
                  (char + 'abc').title(),
                  (char + 'ABC').title(),
  
                  ]
              h.update(''.join(data).encode('utf-8', 'surrogatepass'))
          result = h.hexdigest()
          self.assertEqual(result, self.expectedchecksum)
  
  class UnicodeDatabaseTest(unittest.TestCase):
      db = unicodedata
  
  class UnicodeFunctionsTest(UnicodeDatabaseTest):
  
      # Update this if the database changes. Make sure to do a full rebuild
      # (e.g. 'make distclean && make') to get the correct checksum.
      expectedchecksum = 'd1e37a2854df60ac607b47b51189b9bf1b54bfdb'
  
      @requires_resource('cpu')
      def test_function_checksum(self):
          data = []
          h = hashlib.sha1()
  
          for i in range(sys.maxunicode + 1):
              char = chr(i)
              data = [
                  # Properties
                  format(self.db.digit(char, -1), '.12g'),
                  format(self.db.numeric(char, -1), '.12g'),
                  format(self.db.decimal(char, -1), '.12g'),
                  self.db.category(char),
                  self.db.bidirectional(char),
                  self.db.decomposition(char),
                  str(self.db.mirrored(char)),
                  str(self.db.combining(char)),
              ]
              h.update(''.join(data).encode("ascii"))
          result = h.hexdigest()
          self.assertEqual(result, self.expectedchecksum)
  
      def test_digit(self):
          self.assertEqual(self.db.digit('A', None), None)
          self.assertEqual(self.db.digit('9'), 9)
          self.assertEqual(self.db.digit('\u215b', None), None)
          self.assertEqual(self.db.digit('\u2468'), 9)
          self.assertEqual(self.db.digit('\U00020000', None), None)
          self.assertEqual(self.db.digit('\U0001D7FD'), 7)
  
          self.assertRaises(TypeError, self.db.digit)
          self.assertRaises(TypeError, self.db.digit, 'xx')
          self.assertRaises(ValueError, self.db.digit, 'x')
  
      def test_numeric(self):
          self.assertEqual(self.db.numeric('A',None), None)
          self.assertEqual(self.db.numeric('9'), 9)
          self.assertEqual(self.db.numeric('\u215b'), 0.125)
          self.assertEqual(self.db.numeric('\u2468'), 9.0)
          self.assertEqual(self.db.numeric('\ua627'), 7.0)
          self.assertEqual(self.db.numeric('\U00020000', None), None)
          self.assertEqual(self.db.numeric('\U0001012A'), 9000)
  
          self.assertRaises(TypeError, self.db.numeric)
          self.assertRaises(TypeError, self.db.numeric, 'xx')
          self.assertRaises(ValueError, self.db.numeric, 'x')
  
      def test_decimal(self):
          self.assertEqual(self.db.decimal('A',None), None)
          self.assertEqual(self.db.decimal('9'), 9)
          self.assertEqual(self.db.decimal('\u215b', None), None)
          self.assertEqual(self.db.decimal('\u2468', None), None)
          self.assertEqual(self.db.decimal('\U00020000', None), None)
          self.assertEqual(self.db.decimal('\U0001D7FD'), 7)
  
          self.assertRaises(TypeError, self.db.decimal)
          self.assertRaises(TypeError, self.db.decimal, 'xx')
          self.assertRaises(ValueError, self.db.decimal, 'x')
  
      def test_category(self):
          self.assertEqual(self.db.category('\uFFFE'), 'Cn')
          self.assertEqual(self.db.category('a'), 'Ll')
          self.assertEqual(self.db.category('A'), 'Lu')
          self.assertEqual(self.db.category('\U00020000'), 'Lo')
          self.assertEqual(self.db.category('\U0001012A'), 'No')
  
          self.assertRaises(TypeError, self.db.category)
          self.assertRaises(TypeError, self.db.category, 'xx')
  
      def test_bidirectional(self):
          self.assertEqual(self.db.bidirectional('\uFFFE'), '')
          self.assertEqual(self.db.bidirectional(' '), 'WS')
          self.assertEqual(self.db.bidirectional('A'), 'L')
          self.assertEqual(self.db.bidirectional('\U00020000'), 'L')
  
          self.assertRaises(TypeError, self.db.bidirectional)
          self.assertRaises(TypeError, self.db.bidirectional, 'xx')
  
      def test_decomposition(self):
          self.assertEqual(self.db.decomposition('\uFFFE'),'')
          self.assertEqual(self.db.decomposition('\u00bc'), '<fraction> 0031 2044 0034')
  
          self.assertRaises(TypeError, self.db.decomposition)
          self.assertRaises(TypeError, self.db.decomposition, 'xx')
  
      def test_mirrored(self):
          self.assertEqual(self.db.mirrored('\uFFFE'), 0)
          self.assertEqual(self.db.mirrored('a'), 0)
          self.assertEqual(self.db.mirrored('\u2201'), 1)
          self.assertEqual(self.db.mirrored('\U00020000'), 0)
  
          self.assertRaises(TypeError, self.db.mirrored)
          self.assertRaises(TypeError, self.db.mirrored, 'xx')
  
      def test_combining(self):
          self.assertEqual(self.db.combining('\uFFFE'), 0)
          self.assertEqual(self.db.combining('a'), 0)
          self.assertEqual(self.db.combining('\u20e1'), 230)
          self.assertEqual(self.db.combining('\U00020000'), 0)
  
          self.assertRaises(TypeError, self.db.combining)
          self.assertRaises(TypeError, self.db.combining, 'xx')
  
      def test_pr29(self):
          # https://www.unicode.org/review/pr-29.html
          # See issues #1054943 and #10254.
          composed = ("\u0b47\u0300\u0b3e", "\u1100\u0300\u1161",
                      'Li\u030dt-s\u1e73\u0301',
                      '\u092e\u093e\u0930\u094d\u0915 \u091c\u093c'
                      + '\u0941\u0915\u0947\u0930\u092c\u0930\u094d\u0917',
                      '\u0915\u093f\u0930\u094d\u0917\u093f\u091c\u093c'
                      + '\u0938\u094d\u0924\u093e\u0928')
          for text in composed:
              self.assertEqual(self.db.normalize('NFC', text), text)
  
      def test_issue10254(self):
          # Crash reported in #10254
          a = 'C\u0338' * 20  + 'C\u0327'
          b = 'C\u0338' * 20  + '\xC7'
          self.assertEqual(self.db.normalize('NFC', a), b)
  
      def test_issue29456(self):
          # Fix #29456
          u1176_str_a = '\u1100\u1176\u11a8'
          u1176_str_b = '\u1100\u1176\u11a8'
          u11a7_str_a = '\u1100\u1175\u11a7'
          u11a7_str_b = '\uae30\u11a7'
          u11c3_str_a = '\u1100\u1175\u11c3'
          u11c3_str_b = '\uae30\u11c3'
          self.assertEqual(self.db.normalize('NFC', u1176_str_a), u1176_str_b)
          self.assertEqual(self.db.normalize('NFC', u11a7_str_a), u11a7_str_b)
          self.assertEqual(self.db.normalize('NFC', u11c3_str_a), u11c3_str_b)
  
      def test_east_asian_width(self):
          eaw = self.db.east_asian_width
          self.assertRaises(TypeError, eaw, b'a')
          self.assertRaises(TypeError, eaw, bytearray())
          self.assertRaises(TypeError, eaw, '')
          self.assertRaises(TypeError, eaw, 'ra')
          self.assertEqual(eaw('\x1e'), 'N')
          self.assertEqual(eaw('\x20'), 'Na')
          self.assertEqual(eaw('\uC894'), 'W')
          self.assertEqual(eaw('\uFF66'), 'H')
          self.assertEqual(eaw('\uFF1F'), 'F')
          self.assertEqual(eaw('\u2010'), 'A')
          self.assertEqual(eaw('\U00020000'), 'W')
  
      def test_east_asian_width_9_0_changes(self):
          self.assertEqual(self.db.ucd_3_2_0.east_asian_width('\u231a'), 'N')
          self.assertEqual(self.db.east_asian_width('\u231a'), 'W')
  
  class UnicodeMiscTest(UnicodeDatabaseTest):
  
      def test_failed_import_during_compiling(self):
          # Issue 4367
          # Decoding \N escapes requires the unicodedata module. If it can't be
          # imported, we shouldn't segfault.
  
          # This program should raise a SyntaxError in the eval.
          code = "import sys;" \
              "sys.modules['unicodedata'] = None;" \
              """eval("'\\\\N{SOFT HYPHEN}'")"""
          # We use a separate process because the unicodedata module may already
          # have been loaded in this process.
          result = script_helper.assert_python_failure("-c", code)
          error = "SyntaxError: (unicode error) \\N escapes not supported " \
              "(can't load unicodedata module)"
          self.assertIn(error, result.err.decode("ascii"))
  
      def test_decimal_numeric_consistent(self):
          # Test that decimal and numeric are consistent,
          # i.e. if a character has a decimal value,
          # its numeric value should be the same.
          count = 0
          for i in range(0x10000):
              c = chr(i)
              dec = self.db.decimal(c, -1)
              if dec != -1:
                  self.assertEqual(dec, self.db.numeric(c))
                  count += 1
          self.assertTrue(count >= 10) # should have tested at least the ASCII digits
  
      def test_digit_numeric_consistent(self):
          # Test that digit and numeric are consistent,
          # i.e. if a character has a digit value,
          # its numeric value should be the same.
          count = 0
          for i in range(0x10000):
              c = chr(i)
              dec = self.db.digit(c, -1)
              if dec != -1:
                  self.assertEqual(dec, self.db.numeric(c))
                  count += 1
          self.assertTrue(count >= 10) # should have tested at least the ASCII digits
  
      def test_bug_1704793(self):
          self.assertEqual(self.db.lookup("GOTHIC LETTER FAIHU"), '\U00010346')
  
      def test_ucd_510(self):
          import unicodedata
          # In UCD 5.1.0, a mirrored property changed wrt. UCD 3.2.0
          self.assertTrue(unicodedata.mirrored("\u0f3a"))
          self.assertTrue(not unicodedata.ucd_3_2_0.mirrored("\u0f3a"))
          # Also, we now have two ways of representing
          # the upper-case mapping: as delta, or as absolute value
          self.assertTrue("a".upper()=='A')
          self.assertTrue("\u1d79".upper()=='\ua77d')
          self.assertTrue(".".upper()=='.')
  
      def test_bug_5828(self):
          self.assertEqual("\u1d79".lower(), "\u1d79")
          # Only U+0000 should have U+0000 as its upper/lower/titlecase variant
          self.assertEqual(
              [
                  c for c in range(sys.maxunicode+1)
                  if "\x00" in chr(c).lower()+chr(c).upper()+chr(c).title()
              ],
              [0]
          )
  
      def test_bug_4971(self):
          # LETTER DZ WITH CARON: DZ, Dz, dz
          self.assertEqual("\u01c4".title(), "\u01c5")
          self.assertEqual("\u01c5".title(), "\u01c5")
          self.assertEqual("\u01c6".title(), "\u01c5")
  
      def test_linebreak_7643(self):
          for i in range(0x10000):
              lines = (chr(i) + 'A').splitlines()
              if i in (0x0a, 0x0b, 0x0c, 0x0d, 0x85,
                       0x1c, 0x1d, 0x1e, 0x2028, 0x2029):
                  self.assertEqual(len(lines), 2,
                                   r"\u%.4x should be a linebreak" % i)
              else:
                  self.assertEqual(len(lines), 1,
                                   r"\u%.4x should not be a linebreak" % i)
  
  class NormalizationTest(unittest.TestCase):
      @staticmethod
      def check_version(testfile):
          hdr = testfile.readline()
          return unicodedata.unidata_version in hdr
  
      @staticmethod
      def unistr(data):
          data = [int(x, 16) for x in data.split(" ")]
          return "".join([chr(x) for x in data])
  
      def test_normalization(self):
          TESTDATAFILE = "NormalizationTest.txt"
          TESTDATAURL = f"http://www.pythontest.net/unicode/{unicodedata.unidata_version}/{TESTDATAFILE}"
  
          # Hit the exception early
          try:
              testdata = open_urlresource(TESTDATAURL, encoding="utf-8",
                                          check=self.check_version)
          except PermissionError:
              self.skipTest(f"Permission error when downloading {TESTDATAURL} "
                            f"into the test data directory")
          except (OSError, HTTPException):
              self.fail(f"Could not retrieve {TESTDATAURL}")
  
          with testdata:
              self.run_normalization_tests(testdata)
  
      def run_normalization_tests(self, testdata):
          part = None
          part1_data = {}
  
          def NFC(str):
              return unicodedata.normalize("NFC", str)
  
          def NFKC(str):
              return unicodedata.normalize("NFKC", str)
  
          def NFD(str):
              return unicodedata.normalize("NFD", str)
  
          def NFKD(str):
              return unicodedata.normalize("NFKD", str)
  
          for line in testdata:
              if '#' in line:
                  line = line.split('#')[0]
              line = line.strip()
              if not line:
                  continue
              if line.startswith("@Part"):
                  part = line.split()[0]
                  continue
              c1,c2,c3,c4,c5 = [self.unistr(x) for x in line.split(';')[:-1]]
  
              # Perform tests
              self.assertTrue(c2 ==  NFC(c1) ==  NFC(c2) ==  NFC(c3), line)
              self.assertTrue(c4 ==  NFC(c4) ==  NFC(c5), line)
              self.assertTrue(c3 ==  NFD(c1) ==  NFD(c2) ==  NFD(c3), line)
              self.assertTrue(c5 ==  NFD(c4) ==  NFD(c5), line)
              self.assertTrue(c4 == NFKC(c1) == NFKC(c2) == \
                              NFKC(c3) == NFKC(c4) == NFKC(c5),
                              line)
              self.assertTrue(c5 == NFKD(c1) == NFKD(c2) == \
                              NFKD(c3) == NFKD(c4) == NFKD(c5),
                              line)
  
              self.assertTrue(unicodedata.is_normalized("NFC", c2))
              self.assertTrue(unicodedata.is_normalized("NFC", c4))
  
              self.assertTrue(unicodedata.is_normalized("NFD", c3))
              self.assertTrue(unicodedata.is_normalized("NFD", c5))
  
              self.assertTrue(unicodedata.is_normalized("NFKC", c4))
              self.assertTrue(unicodedata.is_normalized("NFKD", c5))
  
              # Record part 1 data
              if part == "@Part1":
                  part1_data[c1] = 1
  
          # Perform tests for all other data
          for c in range(sys.maxunicode+1):
              X = chr(c)
              if X in part1_data:
                  continue
              self.assertTrue(X == NFC(X) == NFD(X) == NFKC(X) == NFKD(X), c)
  
      def test_edge_cases(self):
          self.assertRaises(TypeError, unicodedata.normalize)
          self.assertRaises(ValueError, unicodedata.normalize, 'unknown', 'xx')
          self.assertEqual(unicodedata.normalize('NFKC', ''), '')
  
      def test_bug_834676(self):
          # Check for bug 834676
          unicodedata.normalize('NFC', '\ud55c\uae00')
  
  
  if __name__ == "__main__":
      unittest.main()
  