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v0.12.0
future/tests/test_buffer.py
250 строк
13 KB
Ed Schofield
Add test_buffer from test/buffer_tests and test/test_bytes
06 апр 2014, 17:49
06 апр 2014, 17:49
f821f65
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# Tests that work for both bytes and buffer objects. # See PEP 3137. from __future__ import (absolute_import, division, print_function, unicode_literals) from future.builtins import * from future.tests.base import unittest 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(bytes(b'hello'), self.marshal(b'HeLLo').lower()) self.assertEqual(bytes(b'hello'), self.marshal(b'hello').lower()) self.assertRaises(TypeError, self.marshal(b'hello').lower, 42) def test_upper(self): self.assertEqual(bytes(b'HELLO'), self.marshal(b'HeLLo').upper()) self.assertEqual(bytes(b'HELLO'), self.marshal(b'HELLO').upper()) self.assertRaises(TypeError, self.marshal(b'hello').upper, 42) def test_capitalize(self): self.assertEqual(bytes(b' hello '), self.marshal(b' hello ').capitalize()) self.assertEqual(bytes(b'Hello '), self.marshal(b'Hello ').capitalize()) self.assertEqual(bytes(b'Hello '), self.marshal(b'hello ').capitalize()) self.assertEqual(bytes(b'Aaaa'), self.marshal(b'aaaa').capitalize()) self.assertEqual(bytes(b'Aaaa'), self.marshal(b'AaAa').capitalize()) self.assertRaises(TypeError, self.marshal(b'hello').capitalize, 42) def test_ljust(self): self.assertEqual(bytes(b'abc '), self.marshal(b'abc').ljust(10)) self.assertEqual(bytes(b'abc '), self.marshal(b'abc').ljust(6)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').ljust(3)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').ljust(2)) self.assertEqual(bytes(b'abc*******'), self.marshal(b'abc').ljust(10, b'*')) self.assertRaises(TypeError, self.marshal(b'abc').ljust) def test_rjust(self): self.assertEqual(bytes(b' abc'), self.marshal(b'abc').rjust(10)) self.assertEqual(bytes(b' abc'), self.marshal(b'abc').rjust(6)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').rjust(3)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').rjust(2)) self.assertEqual(bytes(b'*******abc'), self.marshal(b'abc').rjust(10, b'*')) self.assertRaises(TypeError, self.marshal(b'abc').rjust) def test_center(self): self.assertEqual(bytes(b' abc '), self.marshal(b'abc').center(10)) self.assertEqual(bytes(b' abc '), self.marshal(b'abc').center(6)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').center(3)) self.assertEqual(bytes(b'abc'), self.marshal(b'abc').center(2)) self.assertEqual(bytes(b'***abc****'), self.marshal(b'abc').center(10, b'*')) self.assertRaises(TypeError, self.marshal(b'abc').center) def test_swapcase(self): self.assertEqual(bytes(b'hEllO CoMPuTErS'), self.marshal(bytes(b'HeLLo cOmpUteRs')).swapcase()) self.assertRaises(TypeError, self.marshal(b'hello').swapcase, 42) def test_zfill(self): self.assertEqual(bytes(b'123'), self.marshal(b'123').zfill(2)) self.assertEqual(bytes(b'123'), self.marshal(b'123').zfill(3)) self.assertEqual(bytes(b'0123'), self.marshal(b'123').zfill(4)) self.assertEqual(bytes(b'+123'), self.marshal(b'+123').zfill(3)) self.assertEqual(bytes(b'+123'), self.marshal(b'+123').zfill(4)) self.assertEqual(bytes(b'+0123'), self.marshal(b'+123').zfill(5)) self.assertEqual(bytes(b'-123'), self.marshal(b'-123').zfill(3)) self.assertEqual(bytes(b'-123'), self.marshal(b'-123').zfill(4)) self.assertEqual(bytes(b'-0123'), self.marshal(b'-123').zfill(5)) self.assertEqual(bytes(b'000'), self.marshal(b'').zfill(3)) self.assertEqual(bytes(b'34'), self.marshal(b'34').zfill(1)) self.assertEqual(bytes(b'0034'), self.marshal(b'34').zfill(4)) self.assertRaises(TypeError, self.marshal(b'123').zfill) def test_expandtabs(self): self.assertEqual(bytes(b'abc\rab def\ng hi'), self.marshal(b'abc\rab\tdef\ng\thi').expandtabs()) self.assertEqual(bytes(b'abc\rab def\ng hi'), self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8)) self.assertEqual(bytes(b'abc\rab def\ng hi'), self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(4)) self.assertEqual(bytes(b'abc\r\nab def\ng hi'), self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(4)) self.assertEqual(bytes(b'abc\rab def\ng hi'), self.marshal(b'abc\rab\tdef\ng\thi').expandtabs()) self.assertEqual(bytes(b'abc\rab def\ng hi'), self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8)) self.assertEqual(bytes(b'abc\r\nab\r\ndef\ng\r\nhi'), self.marshal(b'abc\r\nab\r\ndef\ng\r\nhi').expandtabs(4)) self.assertEqual(bytes(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(bytes(b' Hello '), self.marshal(b' hello ').title()) self.assertEqual(bytes(b'Hello '), self.marshal(b'hello ').title()) self.assertEqual(bytes(b'Hello '), self.marshal(b'Hello ').title()) self.assertEqual(bytes(b'Format This As Title String'), self.marshal(b'fOrMaT thIs aS titLe String').title()) self.assertEqual(bytes(b'Format,This-As*Title;String'), self.marshal(b'fOrMaT,thIs-aS*titLe;String').title()) self.assertEqual(bytes(b'Getint'), self.marshal(b'getInt').title()) self.assertRaises(TypeError, self.marshal(b'hello').title, 42) def test_splitlines(self): self.assertEqual([bytes(b'abc'), bytes(b'def'), bytes(b''), bytes(b'ghi')], self.marshal(b'abc\ndef\n\rghi').splitlines()) self.assertEqual([bytes(b'abc'), bytes(b'def'), bytes(b''), bytes(b'ghi')], self.marshal(b'abc\ndef\n\r\nghi').splitlines()) self.assertEqual([bytes(b'abc'), bytes(b'def'), bytes(b'ghi')], self.marshal(b'abc\ndef\r\nghi').splitlines()) # TODO: add bytes calls around these too ... 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(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.assertRaises(TypeError, self.marshal(b'abc').splitlines, 42, 42) # From Python-3.3.5/Lib/test/test_bytes.py: class BytearrayPEP3137Test(unittest.TestCase, MixinBytesBufferCommonTests): def marshal(self, x): return bytearray(bytes(x)) def test_returns_new_copy(self): val = self.marshal(b'1234') # On immutable types these MAY return a reference to themselves # but on mutable types like bytearray they MUST return a new copy. for methname in ('zfill', 'rjust', 'ljust', 'center'): method = getattr(val, methname) newval = method(3) self.assertEqual(val, newval) self.assertTrue(val is not newval, methname+' returned self on a mutable object') for expr in ('val.split()[0]', 'val.rsplit()[0]', 'val.partition(b".")[0]', 'val.rpartition(b".")[2]', 'val.splitlines()[0]', 'val.replace(b"", b"")'): newval = eval(expr) self.assertEqual(val, newval) self.assertTrue(val is not newval, expr+' returned val on a mutable object') if __name__ == '__main__': unittest.main()