1075 lines
38 KiB
Python
1075 lines
38 KiB
Python
from test import test_support
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from test.test_support import bigmemtest, _1G, _2G, _4G, precisionbigmemtest
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import unittest
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import operator
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import string
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import sys
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# Bigmem testing houserules:
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#
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# - Try not to allocate too many large objects. It's okay to rely on
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# refcounting semantics, but don't forget that 's = create_largestring()'
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# doesn't release the old 's' (if it exists) until well after its new
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# value has been created. Use 'del s' before the create_largestring call.
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#
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# - Do *not* compare large objects using assertEquals or similar. It's a
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# lengty operation and the errormessage will be utterly useless due to
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# its size. To make sure whether a result has the right contents, better
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# to use the strip or count methods, or compare meaningful slices.
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#
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# - Don't forget to test for large indices, offsets and results and such,
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# in addition to large sizes.
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#
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# - When repeating an object (say, a substring, or a small list) to create
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# a large object, make the subobject of a length that is not a power of
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# 2. That way, int-wrapping problems are more easily detected.
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#
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# - While the bigmemtest decorator speaks of 'minsize', all tests will
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# actually be called with a much smaller number too, in the normal
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# test run (5Kb currently.) This is so the tests themselves get frequent
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# testing. Consequently, always make all large allocations based on the
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# passed-in 'size', and don't rely on the size being very large. Also,
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# memuse-per-size should remain sane (less than a few thousand); if your
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# test uses more, adjust 'size' upward, instead.
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class StrTest(unittest.TestCase):
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@bigmemtest(minsize=_2G, memuse=2)
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def test_capitalize(self, size):
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SUBSTR = ' abc def ghi'
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s = '-' * size + SUBSTR
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caps = s.capitalize()
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self.assertEquals(caps[-len(SUBSTR):],
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SUBSTR.capitalize())
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self.assertEquals(caps.lstrip('-'), SUBSTR)
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@bigmemtest(minsize=_2G + 10, memuse=1)
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def test_center(self, size):
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SUBSTR = ' abc def ghi'
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s = SUBSTR.center(size)
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self.assertEquals(len(s), size)
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lpadsize = rpadsize = (len(s) - len(SUBSTR)) // 2
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if len(s) % 2:
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lpadsize += 1
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self.assertEquals(s[lpadsize:-rpadsize], SUBSTR)
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self.assertEquals(s.strip(), SUBSTR.strip())
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@precisionbigmemtest(size=_2G - 1, memuse=1)
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def test_center_unicode(self, size):
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SUBSTR = u' abc def ghi'
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try:
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s = SUBSTR.center(size)
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except OverflowError:
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pass # acceptable on 32-bit
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else:
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self.assertEquals(len(s), size)
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lpadsize = rpadsize = (len(s) - len(SUBSTR)) // 2
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if len(s) % 2:
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lpadsize += 1
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self.assertEquals(s[lpadsize:-rpadsize], SUBSTR)
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self.assertEquals(s.strip(), SUBSTR.strip())
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del s
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@bigmemtest(minsize=_2G, memuse=2)
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def test_count(self, size):
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SUBSTR = ' abc def ghi'
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s = '.' * size + SUBSTR
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self.assertEquals(s.count('.'), size)
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s += '.'
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self.assertEquals(s.count('.'), size + 1)
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self.assertEquals(s.count(' '), 3)
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self.assertEquals(s.count('i'), 1)
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self.assertEquals(s.count('j'), 0)
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@bigmemtest(minsize=_2G + 2, memuse=3)
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def test_decode(self, size):
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s = '.' * size
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self.assertEquals(len(s.decode('utf-8')), size)
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def basic_encode_test(self, size, enc, c=u'.', expectedsize=None):
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if expectedsize is None:
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expectedsize = size
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s = c * size
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self.assertEquals(len(s.encode(enc)), expectedsize)
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@bigmemtest(minsize=_2G + 2, memuse=3)
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def test_encode(self, size):
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return self.basic_encode_test(size, 'utf-8')
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@precisionbigmemtest(size=_4G // 6 + 2, memuse=2)
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def test_encode_raw_unicode_escape(self, size):
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try:
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return self.basic_encode_test(size, 'raw_unicode_escape')
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except MemoryError:
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pass # acceptable on 32-bit
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@precisionbigmemtest(size=_4G // 5 + 70, memuse=3)
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def test_encode_utf7(self, size):
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try:
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return self.basic_encode_test(size, 'utf7')
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except MemoryError:
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pass # acceptable on 32-bit
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@precisionbigmemtest(size=_4G // 4 + 5, memuse=6)
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def test_encode_utf32(self, size):
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try:
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return self.basic_encode_test(size, 'utf32', expectedsize=4*size+4)
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except MemoryError:
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pass # acceptable on 32-bit
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@precisionbigmemtest(size=_2G-1, memuse=2)
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def test_decodeascii(self, size):
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return self.basic_encode_test(size, 'ascii', c='A')
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@precisionbigmemtest(size=_4G // 5, memuse=6+2)
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def test_unicode_repr_oflw(self, size):
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try:
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s = u"\uAAAA"*size
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r = repr(s)
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except MemoryError:
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pass # acceptable on 32-bit
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else:
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self.assertTrue(s == eval(r))
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@bigmemtest(minsize=_2G, memuse=2)
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def test_endswith(self, size):
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SUBSTR = ' abc def ghi'
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s = '-' * size + SUBSTR
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self.assertTrue(s.endswith(SUBSTR))
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self.assertTrue(s.endswith(s))
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s2 = '...' + s
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self.assertTrue(s2.endswith(s))
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self.assertFalse(s.endswith('a' + SUBSTR))
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self.assertFalse(SUBSTR.endswith(s))
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@bigmemtest(minsize=_2G + 10, memuse=2)
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def test_expandtabs(self, size):
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s = '-' * size
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tabsize = 8
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self.assertEquals(s.expandtabs(), s)
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del s
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slen, remainder = divmod(size, tabsize)
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s = ' \t' * slen
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s = s.expandtabs(tabsize)
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self.assertEquals(len(s), size - remainder)
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self.assertEquals(len(s.strip(' ')), 0)
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@bigmemtest(minsize=_2G, memuse=2)
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def test_find(self, size):
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SUBSTR = ' abc def ghi'
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sublen = len(SUBSTR)
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s = ''.join([SUBSTR, '-' * size, SUBSTR])
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self.assertEquals(s.find(' '), 0)
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self.assertEquals(s.find(SUBSTR), 0)
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self.assertEquals(s.find(' ', sublen), sublen + size)
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self.assertEquals(s.find(SUBSTR, len(SUBSTR)), sublen + size)
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self.assertEquals(s.find('i'), SUBSTR.find('i'))
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self.assertEquals(s.find('i', sublen),
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sublen + size + SUBSTR.find('i'))
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self.assertEquals(s.find('i', size),
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sublen + size + SUBSTR.find('i'))
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self.assertEquals(s.find('j'), -1)
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@bigmemtest(minsize=_2G, memuse=2)
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def test_index(self, size):
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SUBSTR = ' abc def ghi'
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sublen = len(SUBSTR)
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s = ''.join([SUBSTR, '-' * size, SUBSTR])
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self.assertEquals(s.index(' '), 0)
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self.assertEquals(s.index(SUBSTR), 0)
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self.assertEquals(s.index(' ', sublen), sublen + size)
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self.assertEquals(s.index(SUBSTR, sublen), sublen + size)
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self.assertEquals(s.index('i'), SUBSTR.index('i'))
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self.assertEquals(s.index('i', sublen),
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sublen + size + SUBSTR.index('i'))
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self.assertEquals(s.index('i', size),
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sublen + size + SUBSTR.index('i'))
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self.assertRaises(ValueError, s.index, 'j')
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@bigmemtest(minsize=_2G, memuse=2)
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def test_isalnum(self, size):
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SUBSTR = '123456'
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s = 'a' * size + SUBSTR
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self.assertTrue(s.isalnum())
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s += '.'
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self.assertFalse(s.isalnum())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_isalpha(self, size):
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SUBSTR = 'zzzzzzz'
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s = 'a' * size + SUBSTR
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self.assertTrue(s.isalpha())
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s += '.'
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self.assertFalse(s.isalpha())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_isdigit(self, size):
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SUBSTR = '123456'
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s = '9' * size + SUBSTR
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self.assertTrue(s.isdigit())
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s += 'z'
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self.assertFalse(s.isdigit())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_islower(self, size):
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chars = ''.join([ chr(c) for c in range(255) if not chr(c).isupper() ])
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repeats = size // len(chars) + 2
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s = chars * repeats
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self.assertTrue(s.islower())
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s += 'A'
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self.assertFalse(s.islower())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_isspace(self, size):
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whitespace = ' \f\n\r\t\v'
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repeats = size // len(whitespace) + 2
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s = whitespace * repeats
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self.assertTrue(s.isspace())
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s += 'j'
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self.assertFalse(s.isspace())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_istitle(self, size):
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SUBSTR = '123456'
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s = ''.join(['A', 'a' * size, SUBSTR])
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self.assertTrue(s.istitle())
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s += 'A'
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self.assertTrue(s.istitle())
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s += 'aA'
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self.assertFalse(s.istitle())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_isupper(self, size):
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chars = ''.join([ chr(c) for c in range(255) if not chr(c).islower() ])
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repeats = size // len(chars) + 2
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s = chars * repeats
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self.assertTrue(s.isupper())
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s += 'a'
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self.assertFalse(s.isupper())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_join(self, size):
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s = 'A' * size
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x = s.join(['aaaaa', 'bbbbb'])
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self.assertEquals(x.count('a'), 5)
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self.assertEquals(x.count('b'), 5)
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self.assertTrue(x.startswith('aaaaaA'))
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self.assertTrue(x.endswith('Abbbbb'))
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@bigmemtest(minsize=_2G + 10, memuse=1)
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def test_ljust(self, size):
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SUBSTR = ' abc def ghi'
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s = SUBSTR.ljust(size)
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self.assertTrue(s.startswith(SUBSTR + ' '))
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self.assertEquals(len(s), size)
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self.assertEquals(s.strip(), SUBSTR.strip())
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@bigmemtest(minsize=_2G + 10, memuse=2)
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def test_lower(self, size):
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s = 'A' * size
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s = s.lower()
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self.assertEquals(len(s), size)
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self.assertEquals(s.count('a'), size)
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@bigmemtest(minsize=_2G + 10, memuse=1)
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def test_lstrip(self, size):
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SUBSTR = 'abc def ghi'
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s = SUBSTR.rjust(size)
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self.assertEquals(len(s), size)
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self.assertEquals(s.lstrip(), SUBSTR.lstrip())
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del s
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s = SUBSTR.ljust(size)
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self.assertEquals(len(s), size)
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stripped = s.lstrip()
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self.assertTrue(stripped is s)
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@bigmemtest(minsize=_2G + 10, memuse=2)
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def test_replace(self, size):
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replacement = 'a'
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s = ' ' * size
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s = s.replace(' ', replacement)
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self.assertEquals(len(s), size)
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self.assertEquals(s.count(replacement), size)
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s = s.replace(replacement, ' ', size - 4)
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self.assertEquals(len(s), size)
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self.assertEquals(s.count(replacement), 4)
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self.assertEquals(s[-10:], ' aaaa')
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@bigmemtest(minsize=_2G, memuse=2)
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def test_rfind(self, size):
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SUBSTR = ' abc def ghi'
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sublen = len(SUBSTR)
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s = ''.join([SUBSTR, '-' * size, SUBSTR])
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self.assertEquals(s.rfind(' '), sublen + size + SUBSTR.rfind(' '))
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self.assertEquals(s.rfind(SUBSTR), sublen + size)
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self.assertEquals(s.rfind(' ', 0, size), SUBSTR.rfind(' '))
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self.assertEquals(s.rfind(SUBSTR, 0, sublen + size), 0)
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self.assertEquals(s.rfind('i'), sublen + size + SUBSTR.rfind('i'))
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self.assertEquals(s.rfind('i', 0, sublen), SUBSTR.rfind('i'))
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self.assertEquals(s.rfind('i', 0, sublen + size),
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SUBSTR.rfind('i'))
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self.assertEquals(s.rfind('j'), -1)
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@bigmemtest(minsize=_2G, memuse=2)
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def test_rindex(self, size):
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SUBSTR = ' abc def ghi'
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sublen = len(SUBSTR)
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s = ''.join([SUBSTR, '-' * size, SUBSTR])
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self.assertEquals(s.rindex(' '),
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sublen + size + SUBSTR.rindex(' '))
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self.assertEquals(s.rindex(SUBSTR), sublen + size)
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self.assertEquals(s.rindex(' ', 0, sublen + size - 1),
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SUBSTR.rindex(' '))
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self.assertEquals(s.rindex(SUBSTR, 0, sublen + size), 0)
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self.assertEquals(s.rindex('i'),
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sublen + size + SUBSTR.rindex('i'))
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self.assertEquals(s.rindex('i', 0, sublen), SUBSTR.rindex('i'))
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self.assertEquals(s.rindex('i', 0, sublen + size),
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SUBSTR.rindex('i'))
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self.assertRaises(ValueError, s.rindex, 'j')
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@bigmemtest(minsize=_2G + 10, memuse=1)
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def test_rjust(self, size):
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SUBSTR = ' abc def ghi'
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s = SUBSTR.ljust(size)
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self.assertTrue(s.startswith(SUBSTR + ' '))
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self.assertEquals(len(s), size)
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self.assertEquals(s.strip(), SUBSTR.strip())
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@bigmemtest(minsize=_2G + 10, memuse=1)
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def test_rstrip(self, size):
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SUBSTR = ' abc def ghi'
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s = SUBSTR.ljust(size)
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self.assertEquals(len(s), size)
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self.assertEquals(s.rstrip(), SUBSTR.rstrip())
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del s
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s = SUBSTR.rjust(size)
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self.assertEquals(len(s), size)
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stripped = s.rstrip()
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self.assertTrue(stripped is s)
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# The test takes about size bytes to build a string, and then about
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# sqrt(size) substrings of sqrt(size) in size and a list to
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# hold sqrt(size) items. It's close but just over 2x size.
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@bigmemtest(minsize=_2G, memuse=2.1)
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def test_split_small(self, size):
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# Crudely calculate an estimate so that the result of s.split won't
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# take up an inordinate amount of memory
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chunksize = int(size ** 0.5 + 2)
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SUBSTR = 'a' + ' ' * chunksize
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s = SUBSTR * chunksize
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l = s.split()
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self.assertEquals(len(l), chunksize)
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self.assertEquals(set(l), set(['a']))
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del l
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l = s.split('a')
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self.assertEquals(len(l), chunksize + 1)
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self.assertEquals(set(l), set(['', ' ' * chunksize]))
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# Allocates a string of twice size (and briefly two) and a list of
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# size. Because of internal affairs, the s.split() call produces a
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# list of size times the same one-character string, so we only
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# suffer for the list size. (Otherwise, it'd cost another 48 times
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# size in bytes!) Nevertheless, a list of size takes
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# 8*size bytes.
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@bigmemtest(minsize=_2G + 5, memuse=10)
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def test_split_large(self, size):
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s = ' a' * size + ' '
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l = s.split()
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self.assertEquals(len(l), size)
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self.assertEquals(set(l), set(['a']))
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del l
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l = s.split('a')
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self.assertEquals(len(l), size + 1)
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self.assertEquals(set(l), set([' ']))
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@bigmemtest(minsize=_2G, memuse=2.1)
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def test_splitlines(self, size):
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# Crudely calculate an estimate so that the result of s.split won't
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# take up an inordinate amount of memory
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chunksize = int(size ** 0.5 + 2) // 2
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SUBSTR = ' ' * chunksize + '\n' + ' ' * chunksize + '\r\n'
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s = SUBSTR * chunksize
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l = s.splitlines()
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self.assertEquals(len(l), chunksize * 2)
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self.assertEquals(set(l), set([' ' * chunksize]))
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@bigmemtest(minsize=_2G, memuse=2)
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def test_startswith(self, size):
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SUBSTR = ' abc def ghi'
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s = '-' * size + SUBSTR
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self.assertTrue(s.startswith(s))
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self.assertTrue(s.startswith('-' * size))
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self.assertFalse(s.startswith(SUBSTR))
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@bigmemtest(minsize=_2G, memuse=1)
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def test_strip(self, size):
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SUBSTR = ' abc def ghi '
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s = SUBSTR.rjust(size)
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self.assertEquals(len(s), size)
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self.assertEquals(s.strip(), SUBSTR.strip())
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del s
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s = SUBSTR.ljust(size)
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self.assertEquals(len(s), size)
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self.assertEquals(s.strip(), SUBSTR.strip())
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@bigmemtest(minsize=_2G, memuse=2)
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def test_swapcase(self, size):
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SUBSTR = "aBcDeFG12.'\xa9\x00"
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sublen = len(SUBSTR)
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repeats = size // sublen + 2
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s = SUBSTR * repeats
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s = s.swapcase()
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self.assertEquals(len(s), sublen * repeats)
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self.assertEquals(s[:sublen * 3], SUBSTR.swapcase() * 3)
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self.assertEquals(s[-sublen * 3:], SUBSTR.swapcase() * 3)
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@bigmemtest(minsize=_2G, memuse=2)
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def test_title(self, size):
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SUBSTR = 'SpaaHAaaAaham'
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s = SUBSTR * (size // len(SUBSTR) + 2)
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s = s.title()
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self.assertTrue(s.startswith((SUBSTR * 3).title()))
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self.assertTrue(s.endswith(SUBSTR.lower() * 3))
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@bigmemtest(minsize=_2G, memuse=2)
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def test_translate(self, size):
|
|
trans = string.maketrans('.aZ', '-!$')
|
|
SUBSTR = 'aZz.z.Aaz.'
|
|
sublen = len(SUBSTR)
|
|
repeats = size // sublen + 2
|
|
s = SUBSTR * repeats
|
|
s = s.translate(trans)
|
|
self.assertEquals(len(s), repeats * sublen)
|
|
self.assertEquals(s[:sublen], SUBSTR.translate(trans))
|
|
self.assertEquals(s[-sublen:], SUBSTR.translate(trans))
|
|
self.assertEquals(s.count('.'), 0)
|
|
self.assertEquals(s.count('!'), repeats * 2)
|
|
self.assertEquals(s.count('z'), repeats * 3)
|
|
|
|
@bigmemtest(minsize=_2G + 5, memuse=2)
|
|
def test_upper(self, size):
|
|
s = 'a' * size
|
|
s = s.upper()
|
|
self.assertEquals(len(s), size)
|
|
self.assertEquals(s.count('A'), size)
|
|
|
|
@bigmemtest(minsize=_2G + 20, memuse=1)
|
|
def test_zfill(self, size):
|
|
SUBSTR = '-568324723598234'
|
|
s = SUBSTR.zfill(size)
|
|
self.assertTrue(s.endswith('0' + SUBSTR[1:]))
|
|
self.assertTrue(s.startswith('-0'))
|
|
self.assertEquals(len(s), size)
|
|
self.assertEquals(s.count('0'), size - len(SUBSTR))
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=2)
|
|
def test_format(self, size):
|
|
s = '-' * size
|
|
sf = '%s' % (s,)
|
|
self.assertTrue(s == sf)
|
|
del sf
|
|
sf = '..%s..' % (s,)
|
|
self.assertEquals(len(sf), len(s) + 4)
|
|
self.assertTrue(sf.startswith('..-'))
|
|
self.assertTrue(sf.endswith('-..'))
|
|
del s, sf
|
|
|
|
size //= 2
|
|
edge = '-' * size
|
|
s = ''.join([edge, '%s', edge])
|
|
del edge
|
|
s = s % '...'
|
|
self.assertEquals(len(s), size * 2 + 3)
|
|
self.assertEquals(s.count('.'), 3)
|
|
self.assertEquals(s.count('-'), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=2)
|
|
def test_repr_small(self, size):
|
|
s = '-' * size
|
|
s = repr(s)
|
|
self.assertEquals(len(s), size + 2)
|
|
self.assertEquals(s[0], "'")
|
|
self.assertEquals(s[-1], "'")
|
|
self.assertEquals(s.count('-'), size)
|
|
del s
|
|
# repr() will create a string four times as large as this 'binary
|
|
# string', but we don't want to allocate much more than twice
|
|
# size in total. (We do extra testing in test_repr_large())
|
|
size = size // 5 * 2
|
|
s = '\x00' * size
|
|
s = repr(s)
|
|
self.assertEquals(len(s), size * 4 + 2)
|
|
self.assertEquals(s[0], "'")
|
|
self.assertEquals(s[-1], "'")
|
|
self.assertEquals(s.count('\\'), size)
|
|
self.assertEquals(s.count('0'), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=5)
|
|
def test_repr_large(self, size):
|
|
s = '\x00' * size
|
|
s = repr(s)
|
|
self.assertEquals(len(s), size * 4 + 2)
|
|
self.assertEquals(s[0], "'")
|
|
self.assertEquals(s[-1], "'")
|
|
self.assertEquals(s.count('\\'), size)
|
|
self.assertEquals(s.count('0'), size * 2)
|
|
|
|
@bigmemtest(minsize=2**32 // 5, memuse=6+2)
|
|
def test_unicode_repr(self, size):
|
|
s = u"\uAAAA" * size
|
|
self.assertTrue(len(repr(s)) > size)
|
|
|
|
# This test is meaningful even with size < 2G, as long as the
|
|
# doubled string is > 2G (but it tests more if both are > 2G :)
|
|
@bigmemtest(minsize=_1G + 2, memuse=3)
|
|
def test_concat(self, size):
|
|
s = '.' * size
|
|
self.assertEquals(len(s), size)
|
|
s = s + s
|
|
self.assertEquals(len(s), size * 2)
|
|
self.assertEquals(s.count('.'), size * 2)
|
|
|
|
# This test is meaningful even with size < 2G, as long as the
|
|
# repeated string is > 2G (but it tests more if both are > 2G :)
|
|
@bigmemtest(minsize=_1G + 2, memuse=3)
|
|
def test_repeat(self, size):
|
|
s = '.' * size
|
|
self.assertEquals(len(s), size)
|
|
s = s * 2
|
|
self.assertEquals(len(s), size * 2)
|
|
self.assertEquals(s.count('.'), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G + 20, memuse=1)
|
|
def test_slice_and_getitem(self, size):
|
|
SUBSTR = '0123456789'
|
|
sublen = len(SUBSTR)
|
|
s = SUBSTR * (size // sublen)
|
|
stepsize = len(s) // 100
|
|
stepsize = stepsize - (stepsize % sublen)
|
|
for i in range(0, len(s) - stepsize, stepsize):
|
|
self.assertEquals(s[i], SUBSTR[0])
|
|
self.assertEquals(s[i:i + sublen], SUBSTR)
|
|
self.assertEquals(s[i:i + sublen:2], SUBSTR[::2])
|
|
if i > 0:
|
|
self.assertEquals(s[i + sublen - 1:i - 1:-3],
|
|
SUBSTR[sublen::-3])
|
|
# Make sure we do some slicing and indexing near the end of the
|
|
# string, too.
|
|
self.assertEquals(s[len(s) - 1], SUBSTR[-1])
|
|
self.assertEquals(s[-1], SUBSTR[-1])
|
|
self.assertEquals(s[len(s) - 10], SUBSTR[0])
|
|
self.assertEquals(s[-sublen], SUBSTR[0])
|
|
self.assertEquals(s[len(s):], '')
|
|
self.assertEquals(s[len(s) - 1:], SUBSTR[-1])
|
|
self.assertEquals(s[-1:], SUBSTR[-1])
|
|
self.assertEquals(s[len(s) - sublen:], SUBSTR)
|
|
self.assertEquals(s[-sublen:], SUBSTR)
|
|
self.assertEquals(len(s[:]), len(s))
|
|
self.assertEquals(len(s[:len(s) - 5]), len(s) - 5)
|
|
self.assertEquals(len(s[5:-5]), len(s) - 10)
|
|
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s))
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s) + 1)
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s) + 1<<31)
|
|
|
|
@bigmemtest(minsize=_2G, memuse=2)
|
|
def test_contains(self, size):
|
|
SUBSTR = '0123456789'
|
|
edge = '-' * (size // 2)
|
|
s = ''.join([edge, SUBSTR, edge])
|
|
del edge
|
|
self.assertTrue(SUBSTR in s)
|
|
self.assertFalse(SUBSTR * 2 in s)
|
|
self.assertTrue('-' in s)
|
|
self.assertFalse('a' in s)
|
|
s += 'a'
|
|
self.assertTrue('a' in s)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=2)
|
|
def test_compare(self, size):
|
|
s1 = '-' * size
|
|
s2 = '-' * size
|
|
self.assertTrue(s1 == s2)
|
|
del s2
|
|
s2 = s1 + 'a'
|
|
self.assertFalse(s1 == s2)
|
|
del s2
|
|
s2 = '.' * size
|
|
self.assertFalse(s1 == s2)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=1)
|
|
def test_hash(self, size):
|
|
# Not sure if we can do any meaningful tests here... Even if we
|
|
# start relying on the exact algorithm used, the result will be
|
|
# different depending on the size of the C 'long int'. Even this
|
|
# test is dodgy (there's no *guarantee* that the two things should
|
|
# have a different hash, even if they, in the current
|
|
# implementation, almost always do.)
|
|
s = '\x00' * size
|
|
h1 = hash(s)
|
|
del s
|
|
s = '\x00' * (size + 1)
|
|
self.assertFalse(h1 == hash(s))
|
|
|
|
class TupleTest(unittest.TestCase):
|
|
|
|
# Tuples have a small, fixed-sized head and an array of pointers to
|
|
# data. Since we're testing 64-bit addressing, we can assume that the
|
|
# pointers are 8 bytes, and that thus that the tuples take up 8 bytes
|
|
# per size.
|
|
|
|
# As a side-effect of testing long tuples, these tests happen to test
|
|
# having more than 2<<31 references to any given object. Hence the
|
|
# use of different types of objects as contents in different tests.
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=16)
|
|
def test_compare(self, size):
|
|
t1 = (u'',) * size
|
|
t2 = (u'',) * size
|
|
self.assertTrue(t1 == t2)
|
|
del t2
|
|
t2 = (u'',) * (size + 1)
|
|
self.assertFalse(t1 == t2)
|
|
del t2
|
|
t2 = (1,) * size
|
|
self.assertFalse(t1 == t2)
|
|
|
|
# Test concatenating into a single tuple of more than 2G in length,
|
|
# and concatenating a tuple of more than 2G in length separately, so
|
|
# the smaller test still gets run even if there isn't memory for the
|
|
# larger test (but we still let the tester know the larger test is
|
|
# skipped, in verbose mode.)
|
|
def basic_concat_test(self, size):
|
|
t = ((),) * size
|
|
self.assertEquals(len(t), size)
|
|
t = t + t
|
|
self.assertEquals(len(t), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=24)
|
|
def test_concat_small(self, size):
|
|
return self.basic_concat_test(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=24)
|
|
def test_concat_large(self, size):
|
|
return self.basic_concat_test(size)
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 10, memuse=8 * 5)
|
|
def test_contains(self, size):
|
|
t = (1, 2, 3, 4, 5) * size
|
|
self.assertEquals(len(t), size * 5)
|
|
self.assertTrue(5 in t)
|
|
self.assertFalse((1, 2, 3, 4, 5) in t)
|
|
self.assertFalse(0 in t)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=8)
|
|
def test_hash(self, size):
|
|
t1 = (0,) * size
|
|
h1 = hash(t1)
|
|
del t1
|
|
t2 = (0,) * (size + 1)
|
|
self.assertFalse(h1 == hash(t2))
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=8)
|
|
def test_index_and_slice(self, size):
|
|
t = (None,) * size
|
|
self.assertEquals(len(t), size)
|
|
self.assertEquals(t[-1], None)
|
|
self.assertEquals(t[5], None)
|
|
self.assertEquals(t[size - 1], None)
|
|
self.assertRaises(IndexError, operator.getitem, t, size)
|
|
self.assertEquals(t[:5], (None,) * 5)
|
|
self.assertEquals(t[-5:], (None,) * 5)
|
|
self.assertEquals(t[20:25], (None,) * 5)
|
|
self.assertEquals(t[-25:-20], (None,) * 5)
|
|
self.assertEquals(t[size - 5:], (None,) * 5)
|
|
self.assertEquals(t[size - 5:size], (None,) * 5)
|
|
self.assertEquals(t[size - 6:size - 2], (None,) * 4)
|
|
self.assertEquals(t[size:size], ())
|
|
self.assertEquals(t[size:size+5], ())
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repeat(self, size):
|
|
t = ('',) * size
|
|
self.assertEquals(len(t), size)
|
|
t = t * 2
|
|
self.assertEquals(len(t), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=24)
|
|
def test_repeat_small(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=24)
|
|
def test_repeat_large(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(minsize=_1G - 1, memuse=12)
|
|
def test_repeat_large_2(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@precisionbigmemtest(size=_1G - 1, memuse=9)
|
|
def test_from_2G_generator(self, size):
|
|
try:
|
|
t = tuple(xrange(size))
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
else:
|
|
count = 0
|
|
for item in t:
|
|
self.assertEquals(item, count)
|
|
count += 1
|
|
self.assertEquals(count, size)
|
|
|
|
@precisionbigmemtest(size=_1G - 25, memuse=9)
|
|
def test_from_almost_2G_generator(self, size):
|
|
try:
|
|
t = tuple(xrange(size))
|
|
count = 0
|
|
for item in t:
|
|
self.assertEquals(item, count)
|
|
count += 1
|
|
self.assertEquals(count, size)
|
|
except MemoryError:
|
|
pass # acceptable, expected on 32-bit
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repr(self, size):
|
|
t = (0,) * size
|
|
s = repr(t)
|
|
# The repr of a tuple of 0's is exactly three times the tuple length.
|
|
self.assertEquals(len(s), size * 3)
|
|
self.assertEquals(s[:5], '(0, 0')
|
|
self.assertEquals(s[-5:], '0, 0)')
|
|
self.assertEquals(s.count('0'), size)
|
|
|
|
@bigmemtest(minsize=_2G // 3 + 2, memuse=8 + 3)
|
|
def test_repr_small(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=8 + 3)
|
|
def test_repr_large(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
class ListTest(unittest.TestCase):
|
|
|
|
# Like tuples, lists have a small, fixed-sized head and an array of
|
|
# pointers to data, so 8 bytes per size. Also like tuples, we make the
|
|
# lists hold references to various objects to test their refcount
|
|
# limits.
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=16)
|
|
def test_compare(self, size):
|
|
l1 = [u''] * size
|
|
l2 = [u''] * size
|
|
self.assertTrue(l1 == l2)
|
|
del l2
|
|
l2 = [u''] * (size + 1)
|
|
self.assertFalse(l1 == l2)
|
|
del l2
|
|
l2 = [2] * size
|
|
self.assertFalse(l1 == l2)
|
|
|
|
# Test concatenating into a single list of more than 2G in length,
|
|
# and concatenating a list of more than 2G in length separately, so
|
|
# the smaller test still gets run even if there isn't memory for the
|
|
# larger test (but we still let the tester know the larger test is
|
|
# skipped, in verbose mode.)
|
|
def basic_test_concat(self, size):
|
|
l = [[]] * size
|
|
self.assertEquals(len(l), size)
|
|
l = l + l
|
|
self.assertEquals(len(l), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=24)
|
|
def test_concat_small(self, size):
|
|
return self.basic_test_concat(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=24)
|
|
def test_concat_large(self, size):
|
|
return self.basic_test_concat(size)
|
|
|
|
def basic_test_inplace_concat(self, size):
|
|
l = [sys.stdout] * size
|
|
l += l
|
|
self.assertEquals(len(l), size * 2)
|
|
self.assertTrue(l[0] is l[-1])
|
|
self.assertTrue(l[size - 1] is l[size + 1])
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=24)
|
|
def test_inplace_concat_small(self, size):
|
|
return self.basic_test_inplace_concat(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=24)
|
|
def test_inplace_concat_large(self, size):
|
|
return self.basic_test_inplace_concat(size)
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 10, memuse=8 * 5)
|
|
def test_contains(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
self.assertEquals(len(l), size * 5)
|
|
self.assertTrue(5 in l)
|
|
self.assertFalse([1, 2, 3, 4, 5] in l)
|
|
self.assertFalse(0 in l)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=8)
|
|
def test_hash(self, size):
|
|
l = [0] * size
|
|
self.assertRaises(TypeError, hash, l)
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=8)
|
|
def test_index_and_slice(self, size):
|
|
l = [None] * size
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-1], None)
|
|
self.assertEquals(l[5], None)
|
|
self.assertEquals(l[size - 1], None)
|
|
self.assertRaises(IndexError, operator.getitem, l, size)
|
|
self.assertEquals(l[:5], [None] * 5)
|
|
self.assertEquals(l[-5:], [None] * 5)
|
|
self.assertEquals(l[20:25], [None] * 5)
|
|
self.assertEquals(l[-25:-20], [None] * 5)
|
|
self.assertEquals(l[size - 5:], [None] * 5)
|
|
self.assertEquals(l[size - 5:size], [None] * 5)
|
|
self.assertEquals(l[size - 6:size - 2], [None] * 4)
|
|
self.assertEquals(l[size:size], [])
|
|
self.assertEquals(l[size:size+5], [])
|
|
|
|
l[size - 2] = 5
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-3:], [None, 5, None])
|
|
self.assertEquals(l.count(5), 1)
|
|
self.assertRaises(IndexError, operator.setitem, l, size, 6)
|
|
self.assertEquals(len(l), size)
|
|
|
|
l[size - 7:] = [1, 2, 3, 4, 5]
|
|
size -= 2
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-7:], [None, None, 1, 2, 3, 4, 5])
|
|
|
|
l[:7] = [1, 2, 3, 4, 5]
|
|
size -= 2
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[:7], [1, 2, 3, 4, 5, None, None])
|
|
|
|
del l[size - 1]
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-1], 4)
|
|
|
|
del l[-2:]
|
|
size -= 2
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-1], 2)
|
|
|
|
del l[0]
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[0], 2)
|
|
|
|
del l[:2]
|
|
size -= 2
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[0], 4)
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repeat(self, size):
|
|
l = [] * size
|
|
self.assertFalse(l)
|
|
l = [''] * size
|
|
self.assertEquals(len(l), size)
|
|
l = l * 2
|
|
self.assertEquals(len(l), size * 2)
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=24)
|
|
def test_repeat_small(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=24)
|
|
def test_repeat_large(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
def basic_test_inplace_repeat(self, size):
|
|
l = ['']
|
|
l *= size
|
|
self.assertEquals(len(l), size)
|
|
self.assertTrue(l[0] is l[-1])
|
|
del l
|
|
|
|
l = [''] * size
|
|
l *= 2
|
|
self.assertEquals(len(l), size * 2)
|
|
self.assertTrue(l[size - 1] is l[-1])
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=16)
|
|
def test_inplace_repeat_small(self, size):
|
|
return self.basic_test_inplace_repeat(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=16)
|
|
def test_inplace_repeat_large(self, size):
|
|
return self.basic_test_inplace_repeat(size)
|
|
|
|
def basic_test_repr(self, size):
|
|
l = [0] * size
|
|
s = repr(l)
|
|
# The repr of a list of 0's is exactly three times the list length.
|
|
self.assertEquals(len(s), size * 3)
|
|
self.assertEquals(s[:5], '[0, 0')
|
|
self.assertEquals(s[-5:], '0, 0]')
|
|
self.assertEquals(s.count('0'), size)
|
|
|
|
@bigmemtest(minsize=_2G // 3 + 2, memuse=8 + 3)
|
|
def test_repr_small(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=8 + 3)
|
|
def test_repr_large(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
# list overallocates ~1/8th of the total size (on first expansion) so
|
|
# the single list.append call puts memuse at 9 bytes per size.
|
|
@bigmemtest(minsize=_2G, memuse=9)
|
|
def test_append(self, size):
|
|
l = [object()] * size
|
|
l.append(object())
|
|
self.assertEquals(len(l), size+1)
|
|
self.assertTrue(l[-3] is l[-2])
|
|
self.assertFalse(l[-2] is l[-1])
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_count(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
self.assertEquals(l.count(1), size)
|
|
self.assertEquals(l.count("1"), 0)
|
|
|
|
def basic_test_extend(self, size):
|
|
l = [file] * size
|
|
l.extend(l)
|
|
self.assertEquals(len(l), size * 2)
|
|
self.assertTrue(l[0] is l[-1])
|
|
self.assertTrue(l[size - 1] is l[size + 1])
|
|
|
|
@bigmemtest(minsize=_2G // 2 + 2, memuse=16)
|
|
def test_extend_small(self, size):
|
|
return self.basic_test_extend(size)
|
|
|
|
@bigmemtest(minsize=_2G + 2, memuse=16)
|
|
def test_extend_large(self, size):
|
|
return self.basic_test_extend(size)
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_index(self, size):
|
|
l = [1L, 2L, 3L, 4L, 5L] * size
|
|
size *= 5
|
|
self.assertEquals(l.index(1), 0)
|
|
self.assertEquals(l.index(5, size - 5), size - 1)
|
|
self.assertEquals(l.index(5, size - 5, size), size - 1)
|
|
self.assertRaises(ValueError, l.index, 1, size - 4, size)
|
|
self.assertRaises(ValueError, l.index, 6L)
|
|
|
|
# This tests suffers from overallocation, just like test_append.
|
|
@bigmemtest(minsize=_2G + 10, memuse=9)
|
|
def test_insert(self, size):
|
|
l = [1.0] * size
|
|
l.insert(size - 1, "A")
|
|
size += 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-3:], [1.0, "A", 1.0])
|
|
|
|
l.insert(size + 1, "B")
|
|
size += 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-3:], ["A", 1.0, "B"])
|
|
|
|
l.insert(1, "C")
|
|
size += 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[:3], [1.0, "C", 1.0])
|
|
self.assertEquals(l[size - 3:], ["A", 1.0, "B"])
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 4, memuse=8 * 5)
|
|
def test_pop(self, size):
|
|
l = [u"a", u"b", u"c", u"d", u"e"] * size
|
|
size *= 5
|
|
self.assertEquals(len(l), size)
|
|
|
|
item = l.pop()
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(item, u"e")
|
|
self.assertEquals(l[-2:], [u"c", u"d"])
|
|
|
|
item = l.pop(0)
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(item, u"a")
|
|
self.assertEquals(l[:2], [u"b", u"c"])
|
|
|
|
item = l.pop(size - 2)
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(item, u"c")
|
|
self.assertEquals(l[-2:], [u"b", u"d"])
|
|
|
|
@bigmemtest(minsize=_2G + 10, memuse=8)
|
|
def test_remove(self, size):
|
|
l = [10] * size
|
|
self.assertEquals(len(l), size)
|
|
|
|
l.remove(10)
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
|
|
# Because of the earlier l.remove(), this append doesn't trigger
|
|
# a resize.
|
|
l.append(5)
|
|
size += 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-2:], [10, 5])
|
|
l.remove(5)
|
|
size -= 1
|
|
self.assertEquals(len(l), size)
|
|
self.assertEquals(l[-2:], [10, 10])
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_reverse(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
l.reverse()
|
|
self.assertEquals(len(l), size * 5)
|
|
self.assertEquals(l[-5:], [5, 4, 3, 2, 1])
|
|
self.assertEquals(l[:5], [5, 4, 3, 2, 1])
|
|
|
|
@bigmemtest(minsize=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_sort(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
l.sort()
|
|
self.assertEquals(len(l), size * 5)
|
|
self.assertEquals(l.count(1), size)
|
|
self.assertEquals(l[:10], [1] * 10)
|
|
self.assertEquals(l[-10:], [5] * 10)
|
|
|
|
class BufferTest(unittest.TestCase):
|
|
|
|
@precisionbigmemtest(size=_1G, memuse=4)
|
|
def test_repeat(self, size):
|
|
try:
|
|
# Silence Py3k warning
|
|
with test_support.check_warnings():
|
|
b = buffer("AAAA")*size
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
else:
|
|
count = 0
|
|
for c in b:
|
|
self.assertEquals(c, 'A')
|
|
count += 1
|
|
self.assertEquals(count, size*4)
|
|
|
|
def test_main():
|
|
test_support.run_unittest(StrTest, TupleTest, ListTest, BufferTest)
|
|
|
|
if __name__ == '__main__':
|
|
if len(sys.argv) > 1:
|
|
test_support.set_memlimit(sys.argv[1])
|
|
test_main()
|