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# Tests that work for both bytes and buffer objects.
# See PEP 3137.
import struct
import sys
class MixinBytesBufferCommonTests(object):
"""Tests that work for both bytes and buffer objects.
See PEP 3137.
"""
def marshal(self, x):
"""Convert x into the appropriate type for these tests."""
raise RuntimeError('test class must provide a marshal method')
def test_islower(self):
self.assertFalse(self.marshal(b'').islower())
self.assertTrue(self.marshal(b'a').islower())
self.assertFalse(self.marshal(b'A').islower())
self.assertFalse(self.marshal(b'\n').islower())
self.assertTrue(self.marshal(b'abc').islower())
self.assertFalse(self.marshal(b'aBc').islower())
self.assertTrue(self.marshal(b'abc\n').islower())
self.assertRaises(TypeError, self.marshal(b'abc').islower, 42)
def test_isupper(self):
self.assertFalse(self.marshal(b'').isupper())
self.assertFalse(self.marshal(b'a').isupper())
self.assertTrue(self.marshal(b'A').isupper())
self.assertFalse(self.marshal(b'\n').isupper())
self.assertTrue(self.marshal(b'ABC').isupper())
self.assertFalse(self.marshal(b'AbC').isupper())
self.assertTrue(self.marshal(b'ABC\n').isupper())
self.assertRaises(TypeError, self.marshal(b'abc').isupper, 42)
def test_istitle(self):
self.assertFalse(self.marshal(b'').istitle())
self.assertFalse(self.marshal(b'a').istitle())
self.assertTrue(self.marshal(b'A').istitle())
self.assertFalse(self.marshal(b'\n').istitle())
self.assertTrue(self.marshal(b'A Titlecased Line').istitle())
self.assertTrue(self.marshal(b'A\nTitlecased Line').istitle())
self.assertTrue(self.marshal(b'A Titlecased, Line').istitle())
self.assertFalse(self.marshal(b'Not a capitalized String').istitle())
self.assertFalse(self.marshal(b'Not\ta Titlecase String').istitle())
self.assertFalse(self.marshal(b'Not--a Titlecase String').istitle())
self.assertFalse(self.marshal(b'NOT').istitle())
self.assertRaises(TypeError, self.marshal(b'abc').istitle, 42)
def test_isspace(self):
self.assertFalse(self.marshal(b'').isspace())
self.assertFalse(self.marshal(b'a').isspace())
self.assertTrue(self.marshal(b' ').isspace())
self.assertTrue(self.marshal(b'\t').isspace())
self.assertTrue(self.marshal(b'\r').isspace())
self.assertTrue(self.marshal(b'\n').isspace())
self.assertTrue(self.marshal(b' \t\r\n').isspace())
self.assertFalse(self.marshal(b' \t\r\na').isspace())
self.assertRaises(TypeError, self.marshal(b'abc').isspace, 42)
def test_isalpha(self):
self.assertFalse(self.marshal(b'').isalpha())
self.assertTrue(self.marshal(b'a').isalpha())
self.assertTrue(self.marshal(b'A').isalpha())
self.assertFalse(self.marshal(b'\n').isalpha())
self.assertTrue(self.marshal(b'abc').isalpha())
self.assertFalse(self.marshal(b'aBc123').isalpha())
self.assertFalse(self.marshal(b'abc\n').isalpha())
self.assertRaises(TypeError, self.marshal(b'abc').isalpha, 42)
def test_isalnum(self):
self.assertFalse(self.marshal(b'').isalnum())
self.assertTrue(self.marshal(b'a').isalnum())
self.assertTrue(self.marshal(b'A').isalnum())
self.assertFalse(self.marshal(b'\n').isalnum())
self.assertTrue(self.marshal(b'123abc456').isalnum())
self.assertTrue(self.marshal(b'a1b3c').isalnum())
self.assertFalse(self.marshal(b'aBc000 ').isalnum())
self.assertFalse(self.marshal(b'abc\n').isalnum())
self.assertRaises(TypeError, self.marshal(b'abc').isalnum, 42)
def test_isdigit(self):
self.assertFalse(self.marshal(b'').isdigit())
self.assertFalse(self.marshal(b'a').isdigit())
self.assertTrue(self.marshal(b'0').isdigit())
self.assertTrue(self.marshal(b'0123456789').isdigit())
self.assertFalse(self.marshal(b'0123456789a').isdigit())
self.assertRaises(TypeError, self.marshal(b'abc').isdigit, 42)
def test_lower(self):
self.assertEqual(b'hello', self.marshal(b'HeLLo').lower())
self.assertEqual(b'hello', self.marshal(b'hello').lower())
self.assertRaises(TypeError, self.marshal(b'hello').lower, 42)
def test_upper(self):
self.assertEqual(b'HELLO', self.marshal(b'HeLLo').upper())
self.assertEqual(b'HELLO', self.marshal(b'HELLO').upper())
self.assertRaises(TypeError, self.marshal(b'hello').upper, 42)
def test_capitalize(self):
self.assertEqual(b' hello ', self.marshal(b' hello ').capitalize())
self.assertEqual(b'Hello ', self.marshal(b'Hello ').capitalize())
self.assertEqual(b'Hello ', self.marshal(b'hello ').capitalize())
self.assertEqual(b'Aaaa', self.marshal(b'aaaa').capitalize())
self.assertEqual(b'Aaaa', self.marshal(b'AaAa').capitalize())
self.assertRaises(TypeError, self.marshal(b'hello').capitalize, 42)
def test_ljust(self):
self.assertEqual(b'abc ', self.marshal(b'abc').ljust(10))
self.assertEqual(b'abc ', self.marshal(b'abc').ljust(6))
self.assertEqual(b'abc', self.marshal(b'abc').ljust(3))
self.assertEqual(b'abc', self.marshal(b'abc').ljust(2))
self.assertEqual(b'abc*******', self.marshal(b'abc').ljust(10, b'*'))
self.assertRaises(TypeError, self.marshal(b'abc').ljust)
def test_rjust(self):
self.assertEqual(b' abc', self.marshal(b'abc').rjust(10))
self.assertEqual(b' abc', self.marshal(b'abc').rjust(6))
self.assertEqual(b'abc', self.marshal(b'abc').rjust(3))
self.assertEqual(b'abc', self.marshal(b'abc').rjust(2))
self.assertEqual(b'*******abc', self.marshal(b'abc').rjust(10, b'*'))
self.assertRaises(TypeError, self.marshal(b'abc').rjust)
def test_center(self):
self.assertEqual(b' abc ', self.marshal(b'abc').center(10))
self.assertEqual(b' abc ', self.marshal(b'abc').center(6))
self.assertEqual(b'abc', self.marshal(b'abc').center(3))
self.assertEqual(b'abc', self.marshal(b'abc').center(2))
self.assertEqual(b'***abc****', self.marshal(b'abc').center(10, b'*'))
self.assertRaises(TypeError, self.marshal(b'abc').center)
def test_swapcase(self):
self.assertEqual(b'hEllO CoMPuTErS',
self.marshal(b'HeLLo cOmpUteRs').swapcase())
self.assertRaises(TypeError, self.marshal(b'hello').swapcase, 42)
def test_zfill(self):
self.assertEqual(b'123', self.marshal(b'123').zfill(2))
self.assertEqual(b'123', self.marshal(b'123').zfill(3))
self.assertEqual(b'0123', self.marshal(b'123').zfill(4))
self.assertEqual(b'+123', self.marshal(b'+123').zfill(3))
self.assertEqual(b'+123', self.marshal(b'+123').zfill(4))
self.assertEqual(b'+0123', self.marshal(b'+123').zfill(5))
self.assertEqual(b'-123', self.marshal(b'-123').zfill(3))
self.assertEqual(b'-123', self.marshal(b'-123').zfill(4))
self.assertEqual(b'-0123', self.marshal(b'-123').zfill(5))
self.assertEqual(b'000', self.marshal(b'').zfill(3))
self.assertEqual(b'34', self.marshal(b'34').zfill(1))
self.assertEqual(b'0034', self.marshal(b'34').zfill(4))
self.assertRaises(TypeError, self.marshal(b'123').zfill)
def test_expandtabs(self):
self.assertEqual(b'abc\rab def\ng hi',
self.marshal(b'abc\rab\tdef\ng\thi').expandtabs())
self.assertEqual(b'abc\rab def\ng hi',
self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8))
self.assertEqual(b'abc\rab def\ng hi',
self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(4))
self.assertEqual(b'abc\r\nab def\ng hi',
self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs())
self.assertEqual(b'abc\r\nab def\ng hi',
self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(8))
self.assertEqual(b'abc\r\nab def\ng hi',
self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(4))
self.assertEqual(b'abc\r\nab\r\ndef\ng\r\nhi',
self.marshal(b'abc\r\nab\r\ndef\ng\r\nhi').expandtabs(4))
# check keyword args
self.assertEqual(b'abc\rab def\ng hi',
self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(tabsize=8))
self.assertEqual(b'abc\rab def\ng hi',
self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(tabsize=4))
self.assertEqual(b' a\n b', self.marshal(b' \ta\n\tb').expandtabs(1))
self.assertRaises(TypeError, self.marshal(b'hello').expandtabs, 42, 42)
# This test is only valid when sizeof(int) == sizeof(void*) == 4.
if sys.maxsize < (1 << 32) and struct.calcsize('P') == 4:
self.assertRaises(OverflowError,
self.marshal(b'\ta\n\tb').expandtabs, sys.maxsize)
def test_title(self):
self.assertEqual(b' Hello ', self.marshal(b' hello ').title())
self.assertEqual(b'Hello ', self.marshal(b'hello ').title())
self.assertEqual(b'Hello ', self.marshal(b'Hello ').title())
self.assertEqual(b'Format This As Title String',
self.marshal(b'fOrMaT thIs aS titLe String').title())
self.assertEqual(b'Format,This-As*Title;String',
self.marshal(b'fOrMaT,thIs-aS*titLe;String').title())
self.assertEqual(b'Getint', self.marshal(b'getInt').title())
self.assertRaises(TypeError, self.marshal(b'hello').title, 42)
def test_splitlines(self):
self.assertEqual([b'abc', b'def', b'', b'ghi'],
self.marshal(b'abc\ndef\n\rghi').splitlines())
self.assertEqual([b'abc', b'def', b'', b'ghi'],
self.marshal(b'abc\ndef\n\r\nghi').splitlines())
self.assertEqual([b'abc', b'def', b'ghi'],
self.marshal(b'abc\ndef\r\nghi').splitlines())
self.assertEqual([b'abc', b'def', b'ghi'],
self.marshal(b'abc\ndef\r\nghi\n').splitlines())
self.assertEqual([b'abc', b'def', b'ghi', b''],
self.marshal(b'abc\ndef\r\nghi\n\r').splitlines())
self.assertEqual([b'', b'abc', b'def', b'ghi', b''],
self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines())
self.assertEqual([b'', b'abc', b'def', b'ghi', b''],
self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines(False))
self.assertEqual([b'\n', b'abc\n', b'def\r\n', b'ghi\n', b'\r'],
self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines(True))
self.assertEqual([b'', b'abc', b'def', b'ghi', b''],
self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines(keepends=False))
self.assertEqual([b'\n', b'abc\n', b'def\r\n', b'ghi\n', b'\r'],
self.marshal(b'\nabc\ndef\r\nghi\n\r').splitlines(keepends=True))
self.assertRaises(TypeError, self.marshal(b'abc').splitlines, 42, 42)
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