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104 lines
4.3 KiB
104 lines
4.3 KiB
4 months ago
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import pickle
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import pickletools
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from test import support
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from test.pickletester import AbstractPickleTests
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import unittest
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class OptimizedPickleTests(AbstractPickleTests):
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def dumps(self, arg, proto=None, **kwargs):
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return pickletools.optimize(pickle.dumps(arg, proto, **kwargs))
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def loads(self, buf, **kwds):
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return pickle.loads(buf, **kwds)
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# Test relies on precise output of dumps()
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test_pickle_to_2x = None
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# Test relies on writing by chunks into a file object.
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test_framed_write_sizes_with_delayed_writer = None
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def test_optimize_long_binget(self):
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data = [str(i) for i in range(257)]
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data.append(data[-1])
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for proto in range(pickle.HIGHEST_PROTOCOL + 1):
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pickled = pickle.dumps(data, proto)
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unpickled = pickle.loads(pickled)
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self.assertEqual(unpickled, data)
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self.assertIs(unpickled[-1], unpickled[-2])
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pickled2 = pickletools.optimize(pickled)
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unpickled2 = pickle.loads(pickled2)
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self.assertEqual(unpickled2, data)
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self.assertIs(unpickled2[-1], unpickled2[-2])
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self.assertNotIn(pickle.LONG_BINGET, pickled2)
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self.assertNotIn(pickle.LONG_BINPUT, pickled2)
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def test_optimize_binput_and_memoize(self):
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pickled = (b'\x80\x04\x95\x15\x00\x00\x00\x00\x00\x00\x00'
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b']\x94(\x8c\x04spamq\x01\x8c\x03ham\x94h\x02e.')
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# 0: \x80 PROTO 4
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# 2: \x95 FRAME 21
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# 11: ] EMPTY_LIST
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# 12: \x94 MEMOIZE
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# 13: ( MARK
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# 14: \x8c SHORT_BINUNICODE 'spam'
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# 20: q BINPUT 1
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# 22: \x8c SHORT_BINUNICODE 'ham'
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# 27: \x94 MEMOIZE
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# 28: h BINGET 2
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# 30: e APPENDS (MARK at 13)
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# 31: . STOP
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self.assertIn(pickle.BINPUT, pickled)
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unpickled = pickle.loads(pickled)
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self.assertEqual(unpickled, ['spam', 'ham', 'ham'])
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self.assertIs(unpickled[1], unpickled[2])
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pickled2 = pickletools.optimize(pickled)
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unpickled2 = pickle.loads(pickled2)
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self.assertEqual(unpickled2, ['spam', 'ham', 'ham'])
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self.assertIs(unpickled2[1], unpickled2[2])
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self.assertNotIn(pickle.BINPUT, pickled2)
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class MiscTestCase(unittest.TestCase):
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def test__all__(self):
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blacklist = {'bytes_types',
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'UP_TO_NEWLINE', 'TAKEN_FROM_ARGUMENT1',
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'TAKEN_FROM_ARGUMENT4', 'TAKEN_FROM_ARGUMENT4U',
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'TAKEN_FROM_ARGUMENT8U', 'ArgumentDescriptor',
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'read_uint1', 'read_uint2', 'read_int4', 'read_uint4',
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'read_uint8', 'read_stringnl', 'read_stringnl_noescape',
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'read_stringnl_noescape_pair', 'read_string1',
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'read_string4', 'read_bytes1', 'read_bytes4',
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'read_bytes8', 'read_bytearray8', 'read_unicodestringnl',
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'read_unicodestring1', 'read_unicodestring4',
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'read_unicodestring8', 'read_decimalnl_short',
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'read_decimalnl_long', 'read_floatnl', 'read_float8',
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'read_long1', 'read_long4',
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'uint1', 'uint2', 'int4', 'uint4', 'uint8', 'stringnl',
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'stringnl_noescape', 'stringnl_noescape_pair', 'string1',
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'string4', 'bytes1', 'bytes4', 'bytes8', 'bytearray8',
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'unicodestringnl', 'unicodestring1', 'unicodestring4',
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'unicodestring8', 'decimalnl_short', 'decimalnl_long',
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'floatnl', 'float8', 'long1', 'long4',
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'StackObject',
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'pyint', 'pylong', 'pyinteger_or_bool', 'pybool', 'pyfloat',
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'pybytes_or_str', 'pystring', 'pybytes', 'pybytearray',
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'pyunicode', 'pynone', 'pytuple', 'pylist', 'pydict',
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'pyset', 'pyfrozenset', 'pybuffer', 'anyobject',
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'markobject', 'stackslice', 'OpcodeInfo', 'opcodes',
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'code2op',
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}
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support.check__all__(self, pickletools, blacklist=blacklist)
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def test_main():
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support.run_unittest(OptimizedPickleTests)
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support.run_unittest(MiscTestCase)
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support.run_doctest(pickletools)
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if __name__ == "__main__":
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test_main()
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