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Python Source  |  2011-03-15  |  10.3 KB  |  207 lines
  1. # Tests that work for both bytes and buffer objects.
  2. # See PEP 3137.
  3.  
  4. import struct
  5. import sys
  6.  
  7. class MixinBytesBufferCommonTests(object):
  8.     """Tests that work for both bytes and buffer objects.
  9.     See PEP 3137.
  10.     """
  11.  
  12.     def marshal(self, x):
  13.         """Convert x into the appropriate type for these tests."""
  14.         raise RuntimeError('test class must provide a marshal method')
  15.  
  16.     def test_islower(self):
  17.         self.assertFalse(self.marshal(b'').islower())
  18.         self.assert_(self.marshal(b'a').islower())
  19.         self.assertFalse(self.marshal(b'A').islower())
  20.         self.assertFalse(self.marshal(b'\n').islower())
  21.         self.assert_(self.marshal(b'abc').islower())
  22.         self.assertFalse(self.marshal(b'aBc').islower())
  23.         self.assert_(self.marshal(b'abc\n').islower())
  24.         self.assertRaises(TypeError, self.marshal(b'abc').islower, 42)
  25.  
  26.     def test_isupper(self):
  27.         self.assertFalse(self.marshal(b'').isupper())
  28.         self.assertFalse(self.marshal(b'a').isupper())
  29.         self.assert_(self.marshal(b'A').isupper())
  30.         self.assertFalse(self.marshal(b'\n').isupper())
  31.         self.assert_(self.marshal(b'ABC').isupper())
  32.         self.assertFalse(self.marshal(b'AbC').isupper())
  33.         self.assert_(self.marshal(b'ABC\n').isupper())
  34.         self.assertRaises(TypeError, self.marshal(b'abc').isupper, 42)
  35.  
  36.     def test_istitle(self):
  37.         self.assertFalse(self.marshal(b'').istitle())
  38.         self.assertFalse(self.marshal(b'a').istitle())
  39.         self.assert_(self.marshal(b'A').istitle())
  40.         self.assertFalse(self.marshal(b'\n').istitle())
  41.         self.assert_(self.marshal(b'A Titlecased Line').istitle())
  42.         self.assert_(self.marshal(b'A\nTitlecased Line').istitle())
  43.         self.assert_(self.marshal(b'A Titlecased, Line').istitle())
  44.         self.assertFalse(self.marshal(b'Not a capitalized String').istitle())
  45.         self.assertFalse(self.marshal(b'Not\ta Titlecase String').istitle())
  46.         self.assertFalse(self.marshal(b'Not--a Titlecase String').istitle())
  47.         self.assertFalse(self.marshal(b'NOT').istitle())
  48.         self.assertRaises(TypeError, self.marshal(b'abc').istitle, 42)
  49.  
  50.     def test_isspace(self):
  51.         self.assertFalse(self.marshal(b'').isspace())
  52.         self.assertFalse(self.marshal(b'a').isspace())
  53.         self.assert_(self.marshal(b' ').isspace())
  54.         self.assert_(self.marshal(b'\t').isspace())
  55.         self.assert_(self.marshal(b'\r').isspace())
  56.         self.assert_(self.marshal(b'\n').isspace())
  57.         self.assert_(self.marshal(b' \t\r\n').isspace())
  58.         self.assertFalse(self.marshal(b' \t\r\na').isspace())
  59.         self.assertRaises(TypeError, self.marshal(b'abc').isspace, 42)
  60.  
  61.     def test_isalpha(self):
  62.         self.assertFalse(self.marshal(b'').isalpha())
  63.         self.assert_(self.marshal(b'a').isalpha())
  64.         self.assert_(self.marshal(b'A').isalpha())
  65.         self.assertFalse(self.marshal(b'\n').isalpha())
  66.         self.assert_(self.marshal(b'abc').isalpha())
  67.         self.assertFalse(self.marshal(b'aBc123').isalpha())
  68.         self.assertFalse(self.marshal(b'abc\n').isalpha())
  69.         self.assertRaises(TypeError, self.marshal(b'abc').isalpha, 42)
  70.  
  71.     def test_isalnum(self):
  72.         self.assertFalse(self.marshal(b'').isalnum())
  73.         self.assert_(self.marshal(b'a').isalnum())
  74.         self.assert_(self.marshal(b'A').isalnum())
  75.         self.assertFalse(self.marshal(b'\n').isalnum())
  76.         self.assert_(self.marshal(b'123abc456').isalnum())
  77.         self.assert_(self.marshal(b'a1b3c').isalnum())
  78.         self.assertFalse(self.marshal(b'aBc000 ').isalnum())
  79.         self.assertFalse(self.marshal(b'abc\n').isalnum())
  80.         self.assertRaises(TypeError, self.marshal(b'abc').isalnum, 42)
  81.  
  82.     def test_isdigit(self):
  83.         self.assertFalse(self.marshal(b'').isdigit())
  84.         self.assertFalse(self.marshal(b'a').isdigit())
  85.         self.assert_(self.marshal(b'0').isdigit())
  86.         self.assert_(self.marshal(b'0123456789').isdigit())
  87.         self.assertFalse(self.marshal(b'0123456789a').isdigit())
  88.  
  89.         self.assertRaises(TypeError, self.marshal(b'abc').isdigit, 42)
  90.  
  91.     def test_lower(self):
  92.         self.assertEqual(b'hello', self.marshal(b'HeLLo').lower())
  93.         self.assertEqual(b'hello', self.marshal(b'hello').lower())
  94.         self.assertRaises(TypeError, self.marshal(b'hello').lower, 42)
  95.  
  96.     def test_upper(self):
  97.         self.assertEqual(b'HELLO', self.marshal(b'HeLLo').upper())
  98.         self.assertEqual(b'HELLO', self.marshal(b'HELLO').upper())
  99.         self.assertRaises(TypeError, self.marshal(b'hello').upper, 42)
  100.  
  101.     def test_capitalize(self):
  102.         self.assertEqual(b' hello ', self.marshal(b' hello ').capitalize())
  103.         self.assertEqual(b'Hello ', self.marshal(b'Hello ').capitalize())
  104.         self.assertEqual(b'Hello ', self.marshal(b'hello ').capitalize())
  105.         self.assertEqual(b'Aaaa', self.marshal(b'aaaa').capitalize())
  106.         self.assertEqual(b'Aaaa', self.marshal(b'AaAa').capitalize())
  107.  
  108.         self.assertRaises(TypeError, self.marshal(b'hello').capitalize, 42)
  109.  
  110.     def test_ljust(self):
  111.         self.assertEqual(b'abc       ', self.marshal(b'abc').ljust(10))
  112.         self.assertEqual(b'abc   ', self.marshal(b'abc').ljust(6))
  113.         self.assertEqual(b'abc', self.marshal(b'abc').ljust(3))
  114.         self.assertEqual(b'abc', self.marshal(b'abc').ljust(2))
  115.         self.assertEqual(b'abc*******', self.marshal(b'abc').ljust(10, '*'))
  116.         self.assertRaises(TypeError, self.marshal(b'abc').ljust)
  117.  
  118.     def test_rjust(self):
  119.         self.assertEqual(b'       abc', self.marshal(b'abc').rjust(10))
  120.         self.assertEqual(b'   abc', self.marshal(b'abc').rjust(6))
  121.         self.assertEqual(b'abc', self.marshal(b'abc').rjust(3))
  122.         self.assertEqual(b'abc', self.marshal(b'abc').rjust(2))
  123.         self.assertEqual(b'*******abc', self.marshal(b'abc').rjust(10, '*'))
  124.         self.assertRaises(TypeError, self.marshal(b'abc').rjust)
  125.  
  126.     def test_center(self):
  127.         self.assertEqual(b'   abc    ', self.marshal(b'abc').center(10))
  128.         self.assertEqual(b' abc  ', self.marshal(b'abc').center(6))
  129.         self.assertEqual(b'abc', self.marshal(b'abc').center(3))
  130.         self.assertEqual(b'abc', self.marshal(b'abc').center(2))
  131.         self.assertEqual(b'***abc****', self.marshal(b'abc').center(10, '*'))
  132.         self.assertRaises(TypeError, self.marshal(b'abc').center)
  133.  
  134.     def test_swapcase(self):
  135.         self.assertEqual(b'hEllO CoMPuTErS',
  136.             self.marshal(b'HeLLo cOmpUteRs').swapcase())
  137.  
  138.         self.assertRaises(TypeError, self.marshal(b'hello').swapcase, 42)
  139.  
  140.     def test_zfill(self):
  141.         self.assertEqual(b'123', self.marshal(b'123').zfill(2))
  142.         self.assertEqual(b'123', self.marshal(b'123').zfill(3))
  143.         self.assertEqual(b'0123', self.marshal(b'123').zfill(4))
  144.         self.assertEqual(b'+123', self.marshal(b'+123').zfill(3))
  145.         self.assertEqual(b'+123', self.marshal(b'+123').zfill(4))
  146.         self.assertEqual(b'+0123', self.marshal(b'+123').zfill(5))
  147.         self.assertEqual(b'-123', self.marshal(b'-123').zfill(3))
  148.         self.assertEqual(b'-123', self.marshal(b'-123').zfill(4))
  149.         self.assertEqual(b'-0123', self.marshal(b'-123').zfill(5))
  150.         self.assertEqual(b'000', self.marshal(b'').zfill(3))
  151.         self.assertEqual(b'34', self.marshal(b'34').zfill(1))
  152.         self.assertEqual(b'0034', self.marshal(b'34').zfill(4))
  153.  
  154.         self.assertRaises(TypeError, self.marshal(b'123').zfill)
  155.  
  156.     def test_expandtabs(self):
  157.         self.assertEqual(b'abc\rab      def\ng       hi',
  158.                          self.marshal(b'abc\rab\tdef\ng\thi').expandtabs())
  159.         self.assertEqual(b'abc\rab      def\ng       hi',
  160.                          self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8))
  161.         self.assertEqual(b'abc\rab  def\ng   hi',
  162.                          self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(4))
  163.         self.assertEqual(b'abc\r\nab  def\ng   hi',
  164.                          self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(4))
  165.         self.assertEqual(b'abc\rab      def\ng       hi',
  166.                          self.marshal(b'abc\rab\tdef\ng\thi').expandtabs())
  167.         self.assertEqual(b'abc\rab      def\ng       hi',
  168.                          self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8))
  169.         self.assertEqual(b'abc\r\nab\r\ndef\ng\r\nhi',
  170.             self.marshal(b'abc\r\nab\r\ndef\ng\r\nhi').expandtabs(4))
  171.         self.assertEqual(b'  a\n b', self.marshal(b' \ta\n\tb').expandtabs(1))
  172.  
  173.         self.assertRaises(TypeError, self.marshal(b'hello').expandtabs, 42, 42)
  174.         # This test is only valid when sizeof(int) == sizeof(void*) == 4.
  175.         if sys.maxint < (1 << 32) and struct.calcsize('P') == 4:
  176.             self.assertRaises(OverflowError,
  177.                               self.marshal(b'\ta\n\tb').expandtabs, sys.maxint)
  178.  
  179.     def test_title(self):
  180.         self.assertEqual(b' Hello ', self.marshal(b' hello ').title())
  181.         self.assertEqual(b'Hello ', self.marshal(b'hello ').title())
  182.         self.assertEqual(b'Hello ', self.marshal(b'Hello ').title())
  183.         self.assertEqual(b'Format This As Title String',
  184.                          self.marshal(b'fOrMaT thIs aS titLe String').title())
  185.         self.assertEqual(b'Format,This-As*Title;String',
  186.                          self.marshal(b'fOrMaT,thIs-aS*titLe;String').title())
  187.         self.assertEqual(b'Getint', self.marshal(b'getInt').title())
  188.         self.assertRaises(TypeError, self.marshal(b'hello').title, 42)
  189.  
  190.     def test_splitlines(self):
  191.         self.assertEqual([b'abc', b'def', b'', b'ghi'],
  192.                          self.marshal(b'abc\ndef\n\rghi').splitlines())
  193.         self.assertEqual([b'abc', b'def', b'', b'ghi'],
  194.                          self.marshal(b'abc\ndef\n\r\nghi').splitlines())
  195.         self.assertEqual([b'abc', b'def', b'ghi'],
  196.                          self.marshal(b'abc\ndef\r\nghi').splitlines())
  197.         self.assertEqual([b'abc', b'def', b'ghi'],
  198.                          self.marshal(b'abc\ndef\r\nghi\n').splitlines())
  199.         self.assertEqual([b'abc', b'def', b'ghi', b''],
  200.                          self.marshal(b'abc\ndef\r\nghi\n\r').splitlines())
  201.         self.assertEqual([b'', b'abc', b'def', b'ghi', b''],
  202.                          self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines())
  203.         self.assertEqual([b'\n', b'abc\n', b'def\r\n', b'ghi\n', b'\r'],
  204.                          self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines(1))
  205.  
  206.         self.assertRaises(TypeError, self.marshal(b'abc').splitlines, 42, 42)
  207.