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690 lines
19 KiB
690 lines
19 KiB
"Test the functionality of Python classes implementing operators."
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import unittest
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from test import test_support
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testmeths = [
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# Binary operations
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"add",
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"radd",
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"sub",
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"rsub",
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"mul",
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"rmul",
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"div",
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"rdiv",
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"mod",
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"rmod",
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"divmod",
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"rdivmod",
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"pow",
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"rpow",
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"rshift",
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"rrshift",
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"lshift",
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"rlshift",
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"and",
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"rand",
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"or",
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"ror",
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"xor",
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"rxor",
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# List/dict operations
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"contains",
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"getitem",
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"getslice",
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"setitem",
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"setslice",
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"delitem",
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"delslice",
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# Unary operations
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"neg",
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"pos",
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"abs",
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# generic operations
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"init",
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]
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# These need to return something other than None
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# "coerce",
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# "hash",
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# "str",
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# "repr",
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# "int",
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# "long",
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# "float",
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# "oct",
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# "hex",
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# These are separate because they can influence the test of other methods.
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# "getattr",
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# "setattr",
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# "delattr",
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callLst = []
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def trackCall(f):
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def track(*args, **kwargs):
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callLst.append((f.__name__, args))
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return f(*args, **kwargs)
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return track
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class AllTests:
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trackCall = trackCall
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@trackCall
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def __coerce__(self, *args):
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return (self,) + args
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@trackCall
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def __hash__(self, *args):
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return hash(id(self))
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@trackCall
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def __str__(self, *args):
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return "AllTests"
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@trackCall
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def __repr__(self, *args):
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return "AllTests"
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@trackCall
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def __int__(self, *args):
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return 1
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@trackCall
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def __float__(self, *args):
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return 1.0
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@trackCall
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def __long__(self, *args):
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return 1L
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@trackCall
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def __oct__(self, *args):
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return '01'
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@trackCall
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def __hex__(self, *args):
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return '0x1'
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@trackCall
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def __cmp__(self, *args):
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return 0
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# Synthesize all the other AllTests methods from the names in testmeths.
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method_template = """\
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@trackCall
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def __%(method)s__(self, *args):
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pass
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"""
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for method in testmeths:
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exec method_template % locals() in AllTests.__dict__
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del method, method_template
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class ClassTests(unittest.TestCase):
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def setUp(self):
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callLst[:] = []
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def assertCallStack(self, expected_calls):
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actualCallList = callLst[:] # need to copy because the comparison below will add
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# additional calls to callLst
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if expected_calls != actualCallList:
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self.fail("Expected call list:\n %s\ndoes not match actual call list\n %s" %
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(expected_calls, actualCallList))
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def testInit(self):
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foo = AllTests()
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self.assertCallStack([("__init__", (foo,))])
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def testBinaryOps(self):
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testme = AllTests()
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# Binary operations
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callLst[:] = []
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testme + 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__add__", (testme, 1))])
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callLst[:] = []
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1 + testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__radd__", (testme, 1))])
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callLst[:] = []
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testme - 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__sub__", (testme, 1))])
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callLst[:] = []
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1 - testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rsub__", (testme, 1))])
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callLst[:] = []
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testme * 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__mul__", (testme, 1))])
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callLst[:] = []
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1 * testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rmul__", (testme, 1))])
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if 1/2 == 0:
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callLst[:] = []
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testme / 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__div__", (testme, 1))])
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callLst[:] = []
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1 / testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rdiv__", (testme, 1))])
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callLst[:] = []
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testme % 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__mod__", (testme, 1))])
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callLst[:] = []
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1 % testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rmod__", (testme, 1))])
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callLst[:] = []
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divmod(testme,1)
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self.assertCallStack([("__coerce__", (testme, 1)), ("__divmod__", (testme, 1))])
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callLst[:] = []
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divmod(1, testme)
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rdivmod__", (testme, 1))])
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callLst[:] = []
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testme ** 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__pow__", (testme, 1))])
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callLst[:] = []
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1 ** testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rpow__", (testme, 1))])
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callLst[:] = []
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testme >> 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rshift__", (testme, 1))])
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callLst[:] = []
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1 >> testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rrshift__", (testme, 1))])
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callLst[:] = []
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testme << 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__lshift__", (testme, 1))])
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callLst[:] = []
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1 << testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rlshift__", (testme, 1))])
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callLst[:] = []
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testme & 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__and__", (testme, 1))])
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callLst[:] = []
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1 & testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rand__", (testme, 1))])
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callLst[:] = []
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testme | 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__or__", (testme, 1))])
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callLst[:] = []
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1 | testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__ror__", (testme, 1))])
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callLst[:] = []
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testme ^ 1
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self.assertCallStack([("__coerce__", (testme, 1)), ("__xor__", (testme, 1))])
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callLst[:] = []
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1 ^ testme
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self.assertCallStack([("__coerce__", (testme, 1)), ("__rxor__", (testme, 1))])
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def testListAndDictOps(self):
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testme = AllTests()
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# List/dict operations
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class Empty: pass
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try:
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1 in Empty()
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self.fail('failed, should have raised TypeError')
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except TypeError:
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pass
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callLst[:] = []
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1 in testme
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self.assertCallStack([('__contains__', (testme, 1))])
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callLst[:] = []
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testme[1]
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self.assertCallStack([('__getitem__', (testme, 1))])
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callLst[:] = []
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testme[1] = 1
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self.assertCallStack([('__setitem__', (testme, 1, 1))])
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callLst[:] = []
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del testme[1]
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self.assertCallStack([('__delitem__', (testme, 1))])
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callLst[:] = []
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testme[:42]
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self.assertCallStack([('__getslice__', (testme, 0, 42))])
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callLst[:] = []
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testme[:42] = "The Answer"
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self.assertCallStack([('__setslice__', (testme, 0, 42, "The Answer"))])
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callLst[:] = []
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del testme[:42]
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self.assertCallStack([('__delslice__', (testme, 0, 42))])
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callLst[:] = []
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testme[2:1024:10]
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self.assertCallStack([('__getitem__', (testme, slice(2, 1024, 10)))])
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callLst[:] = []
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testme[2:1024:10] = "A lot"
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self.assertCallStack([('__setitem__', (testme, slice(2, 1024, 10),
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"A lot"))])
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callLst[:] = []
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del testme[2:1024:10]
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self.assertCallStack([('__delitem__', (testme, slice(2, 1024, 10)))])
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callLst[:] = []
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testme[:42, ..., :24:, 24, 100]
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self.assertCallStack([('__getitem__', (testme, (slice(None, 42, None),
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Ellipsis,
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slice(None, 24, None),
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24, 100)))])
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callLst[:] = []
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testme[:42, ..., :24:, 24, 100] = "Strange"
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self.assertCallStack([('__setitem__', (testme, (slice(None, 42, None),
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Ellipsis,
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slice(None, 24, None),
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24, 100), "Strange"))])
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callLst[:] = []
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del testme[:42, ..., :24:, 24, 100]
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self.assertCallStack([('__delitem__', (testme, (slice(None, 42, None),
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Ellipsis,
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slice(None, 24, None),
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24, 100)))])
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# Now remove the slice hooks to see if converting normal slices to
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# slice object works.
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getslice = AllTests.__getslice__
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del AllTests.__getslice__
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setslice = AllTests.__setslice__
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del AllTests.__setslice__
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delslice = AllTests.__delslice__
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del AllTests.__delslice__
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# XXX when using new-style classes the slice testme[:42] produces
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# slice(None, 42, None) instead of slice(0, 42, None). py3k will have
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# to change this test.
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callLst[:] = []
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testme[:42]
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self.assertCallStack([('__getitem__', (testme, slice(0, 42, None)))])
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callLst[:] = []
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testme[:42] = "The Answer"
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self.assertCallStack([('__setitem__', (testme, slice(0, 42, None),
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"The Answer"))])
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callLst[:] = []
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del testme[:42]
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self.assertCallStack([('__delitem__', (testme, slice(0, 42, None)))])
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# Restore the slice methods, or the tests will fail with regrtest -R.
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AllTests.__getslice__ = getslice
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AllTests.__setslice__ = setslice
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AllTests.__delslice__ = delslice
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@test_support.cpython_only
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def testDelItem(self):
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class A:
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ok = False
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def __delitem__(self, key):
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self.ok = True
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a = A()
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# Subtle: we need to call PySequence_SetItem, not PyMapping_SetItem.
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from _testcapi import sequence_delitem
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sequence_delitem(a, 2)
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self.assertTrue(a.ok)
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def testUnaryOps(self):
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testme = AllTests()
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callLst[:] = []
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-testme
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self.assertCallStack([('__neg__', (testme,))])
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callLst[:] = []
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+testme
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self.assertCallStack([('__pos__', (testme,))])
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callLst[:] = []
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abs(testme)
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self.assertCallStack([('__abs__', (testme,))])
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callLst[:] = []
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int(testme)
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self.assertCallStack([('__int__', (testme,))])
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callLst[:] = []
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long(testme)
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self.assertCallStack([('__long__', (testme,))])
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callLst[:] = []
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float(testme)
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self.assertCallStack([('__float__', (testme,))])
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callLst[:] = []
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oct(testme)
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self.assertCallStack([('__oct__', (testme,))])
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callLst[:] = []
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hex(testme)
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self.assertCallStack([('__hex__', (testme,))])
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def testMisc(self):
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testme = AllTests()
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callLst[:] = []
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hash(testme)
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self.assertCallStack([('__hash__', (testme,))])
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callLst[:] = []
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repr(testme)
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self.assertCallStack([('__repr__', (testme,))])
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callLst[:] = []
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str(testme)
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self.assertCallStack([('__str__', (testme,))])
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callLst[:] = []
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testme == 1
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (testme, 1))])
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callLst[:] = []
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testme < 1
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (testme, 1))])
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callLst[:] = []
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testme > 1
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (testme, 1))])
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callLst[:] = []
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eval('testme <> 1') # XXX kill this in py3k
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (testme, 1))])
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callLst[:] = []
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testme != 1
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (testme, 1))])
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callLst[:] = []
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1 == testme
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (1, testme))])
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callLst[:] = []
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1 < testme
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (1, testme))])
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callLst[:] = []
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1 > testme
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (1, testme))])
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callLst[:] = []
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eval('1 <> testme')
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (1, testme))])
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callLst[:] = []
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1 != testme
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self.assertCallStack([("__coerce__", (testme, 1)), ('__cmp__', (1, testme))])
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def testGetSetAndDel(self):
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# Interfering tests
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class ExtraTests(AllTests):
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@trackCall
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def __getattr__(self, *args):
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return "SomeVal"
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@trackCall
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def __setattr__(self, *args):
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pass
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@trackCall
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def __delattr__(self, *args):
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pass
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testme = ExtraTests()
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callLst[:] = []
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testme.spam
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self.assertCallStack([('__getattr__', (testme, "spam"))])
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callLst[:] = []
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testme.eggs = "spam, spam, spam and ham"
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self.assertCallStack([('__setattr__', (testme, "eggs",
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"spam, spam, spam and ham"))])
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callLst[:] = []
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del testme.cardinal
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self.assertCallStack([('__delattr__', (testme, "cardinal"))])
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def testDel(self):
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x = []
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class DelTest:
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def __del__(self):
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x.append("crab people, crab people")
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testme = DelTest()
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del testme
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import gc
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gc.collect()
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self.assertEqual(["crab people, crab people"], x)
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def testBadTypeReturned(self):
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# return values of some method are type-checked
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class BadTypeClass:
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def __int__(self):
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return None
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__float__ = __int__
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__long__ = __int__
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__str__ = __int__
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__repr__ = __int__
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__oct__ = __int__
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__hex__ = __int__
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for f in [int, float, long, str, repr, oct, hex]:
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self.assertRaises(TypeError, f, BadTypeClass())
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def testMixIntsAndLongs(self):
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# mixing up ints and longs is okay
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class IntLongMixClass:
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@trackCall
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def __int__(self):
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return 42L
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@trackCall
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def __long__(self):
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return 64
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mixIntAndLong = IntLongMixClass()
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callLst[:] = []
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as_int = int(mixIntAndLong)
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self.assertEqual(type(as_int), long)
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self.assertEqual(as_int, 42L)
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self.assertCallStack([('__int__', (mixIntAndLong,))])
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callLst[:] = []
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as_long = long(mixIntAndLong)
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self.assertEqual(type(as_long), long)
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self.assertEqual(as_long, 64)
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self.assertCallStack([('__long__', (mixIntAndLong,))])
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def testHashStuff(self):
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# Test correct errors from hash() on objects with comparisons but
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# no __hash__
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class C0:
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pass
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hash(C0()) # This should work; the next two should raise TypeError
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|
class C1:
|
|
def __cmp__(self, other): return 0
|
|
|
|
self.assertRaises(TypeError, hash, C1())
|
|
|
|
class C2:
|
|
def __eq__(self, other): return 1
|
|
|
|
self.assertRaises(TypeError, hash, C2())
|
|
|
|
|
|
def testSFBug532646(self):
|
|
# Test for SF bug 532646
|
|
|
|
class A:
|
|
pass
|
|
A.__call__ = A()
|
|
a = A()
|
|
|
|
try:
|
|
a() # This should not segfault
|
|
except RuntimeError:
|
|
pass
|
|
else:
|
|
self.fail("Failed to raise RuntimeError")
|
|
|
|
def testForExceptionsRaisedInInstanceGetattr2(self):
|
|
# Tests for exceptions raised in instance_getattr2().
|
|
|
|
def booh(self):
|
|
raise AttributeError("booh")
|
|
|
|
class A:
|
|
a = property(booh)
|
|
try:
|
|
A().a # Raised AttributeError: A instance has no attribute 'a'
|
|
except AttributeError, x:
|
|
if str(x) != "booh":
|
|
self.fail("attribute error for A().a got masked: %s" % x)
|
|
|
|
class E:
|
|
__eq__ = property(booh)
|
|
E() == E() # In debug mode, caused a C-level assert() to fail
|
|
|
|
class I:
|
|
__init__ = property(booh)
|
|
try:
|
|
# In debug mode, printed XXX undetected error and
|
|
# raises AttributeError
|
|
I()
|
|
except AttributeError, x:
|
|
pass
|
|
else:
|
|
self.fail("attribute error for I.__init__ got masked")
|
|
|
|
def testHashComparisonOfMethods(self):
|
|
# Test comparison and hash of methods
|
|
class A:
|
|
def __init__(self, x):
|
|
self.x = x
|
|
def f(self):
|
|
pass
|
|
def g(self):
|
|
pass
|
|
def __eq__(self, other):
|
|
return self.x == other.x
|
|
def __hash__(self):
|
|
return self.x
|
|
class B(A):
|
|
pass
|
|
|
|
a1 = A(1)
|
|
a2 = A(2)
|
|
self.assertEqual(a1.f, a1.f)
|
|
self.assertNotEqual(a1.f, a2.f)
|
|
self.assertNotEqual(a1.f, a1.g)
|
|
self.assertEqual(a1.f, A(1).f)
|
|
self.assertEqual(hash(a1.f), hash(a1.f))
|
|
self.assertEqual(hash(a1.f), hash(A(1).f))
|
|
|
|
self.assertNotEqual(A.f, a1.f)
|
|
self.assertNotEqual(A.f, A.g)
|
|
self.assertEqual(B.f, A.f)
|
|
self.assertEqual(hash(B.f), hash(A.f))
|
|
|
|
# the following triggers a SystemError in 2.4
|
|
a = A(hash(A.f.im_func)^(-1))
|
|
hash(a.f)
|
|
|
|
def testAttrSlots(self):
|
|
class C:
|
|
pass
|
|
for c in C, C():
|
|
self.assertRaises(TypeError, type(c).__getattribute__, c, [])
|
|
self.assertRaises(TypeError, type(c).__setattr__, c, [], [])
|
|
|
|
def testSetattrWrapperNameIntern(self):
|
|
# Issue #25794: __setattr__ should intern the attribute name
|
|
class A(object):
|
|
pass
|
|
|
|
def add(self, other):
|
|
return 'summa'
|
|
|
|
name = ''.join(list('__add__')) # shouldn't be optimized
|
|
self.assertIsNot(name, '__add__') # not interned
|
|
type.__setattr__(A, name, add)
|
|
self.assertEqual(A() + 1, 'summa')
|
|
|
|
name2 = ''.join(list('__add__'))
|
|
self.assertIsNot(name2, '__add__')
|
|
self.assertIsNot(name2, name)
|
|
type.__delattr__(A, name2)
|
|
with self.assertRaises(TypeError):
|
|
A() + 1
|
|
|
|
@test_support.requires_unicode
|
|
def testSetattrWrapperNameUnicode(self):
|
|
# Issue #25794: __setattr__ should intern the attribute name
|
|
class A(object):
|
|
pass
|
|
|
|
def add(self, other):
|
|
return 'summa'
|
|
|
|
type.__setattr__(A, u'__add__', add)
|
|
self.assertEqual(A() + 1, 'summa')
|
|
|
|
type.__delattr__(A, u'__add__')
|
|
with self.assertRaises(TypeError):
|
|
A() + 1
|
|
|
|
def testSetattrNonStringName(self):
|
|
class A(object):
|
|
pass
|
|
|
|
with self.assertRaises(TypeError):
|
|
type.__setattr__(A, bytearray(b'x'), None)
|
|
|
|
def test_main():
|
|
with test_support.check_py3k_warnings(
|
|
(".+__(get|set|del)slice__ has been removed", DeprecationWarning),
|
|
("classic int division", DeprecationWarning),
|
|
("<> not supported", DeprecationWarning)):
|
|
test_support.run_unittest(ClassTests)
|
|
|
|
if __name__=='__main__':
|
|
test_main()
|