mirror of https://github.com/python/cpython
Port test_richcmp.py to PyUnit. From SF patch #662807 which additional
tests and comments.
This commit is contained in:
parent
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@ -1,187 +0,0 @@
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test_richcmp
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operator: <
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | False | True | True |
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Number(1) | False | False | True |
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Number(2) | False | False | False |
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----------+-----------+-----------+-----------+-
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operator: <=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | True | True | True |
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Number(1) | False | True | True |
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Number(2) | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: ==
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | True | False | False |
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Number(1) | False | True | False |
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Number(2) | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: !=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | False | True | True |
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Number(1) | True | False | True |
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Number(2) | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | False | False | False |
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Number(1) | True | False | False |
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Number(2) | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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Number(0) | True | False | False |
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Number(1) | True | True | False |
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Number(2) | True | True | True |
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----------+-----------+-----------+-----------+-
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**************************************************
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operator: <
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | False | True | True |
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1 | False | False | True |
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2 | False | False | False |
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----------+-----------+-----------+-----------+-
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operator: <=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | True | True | True |
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1 | False | True | True |
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2 | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: ==
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | True | False | False |
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1 | False | True | False |
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2 | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: !=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | False | True | True |
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1 | True | False | True |
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2 | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | False | False | False |
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1 | True | False | False |
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2 | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >=
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| Number(0) | Number(1) | Number(2) |
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----------+-----------+-----------+-----------+-
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0 | True | False | False |
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1 | True | True | False |
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2 | True | True | True |
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----------+-----------+-----------+-----------+-
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**************************************************
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operator: <
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | False | True | True |
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Number(1) | False | False | True |
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Number(2) | False | False | False |
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----------+-----------+-----------+-----------+-
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operator: <=
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | True | True | True |
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Number(1) | False | True | True |
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Number(2) | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: ==
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | True | False | False |
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Number(1) | False | True | False |
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Number(2) | False | False | True |
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----------+-----------+-----------+-----------+-
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operator: !=
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | False | True | True |
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Number(1) | True | False | True |
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Number(2) | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | False | False | False |
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Number(1) | True | False | False |
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Number(2) | True | True | False |
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----------+-----------+-----------+-----------+-
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operator: >=
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| 0 | 1 | 2 |
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----------+-----------+-----------+-----------+-
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Number(0) | True | False | False |
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Number(1) | True | True | False |
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Number(2) | True | True | True |
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----------+-----------+-----------+-----------+-
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**************************************************
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Vector([0, 1, 2, 3, 4]) < Vector([2, 2, 2, 2, 2]) -> Vector([True, True, False, False, False])
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Vector([0, 1, 2, 3, 4]) < [2, 2, 2, 2, 2] -> Vector([True, True, False, False, False])
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[0, 1, 2, 3, 4] < Vector([2, 2, 2, 2, 2]) -> Vector([True, True, False, False, False])
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Vector([0, 1, 2, 3, 4]) <= Vector([2, 2, 2, 2, 2]) -> Vector([True, True, True, False, False])
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Vector([0, 1, 2, 3, 4]) <= [2, 2, 2, 2, 2] -> Vector([True, True, True, False, False])
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[0, 1, 2, 3, 4] <= Vector([2, 2, 2, 2, 2]) -> Vector([True, True, True, False, False])
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Vector([0, 1, 2, 3, 4]) == Vector([2, 2, 2, 2, 2]) -> Vector([False, False, True, False, False])
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Vector([0, 1, 2, 3, 4]) == [2, 2, 2, 2, 2] -> Vector([False, False, True, False, False])
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[0, 1, 2, 3, 4] == Vector([2, 2, 2, 2, 2]) -> Vector([False, False, True, False, False])
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Vector([0, 1, 2, 3, 4]) != Vector([2, 2, 2, 2, 2]) -> Vector([True, True, False, True, True])
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Vector([0, 1, 2, 3, 4]) != [2, 2, 2, 2, 2] -> Vector([True, True, False, True, True])
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[0, 1, 2, 3, 4] != Vector([2, 2, 2, 2, 2]) -> Vector([True, True, False, True, True])
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Vector([0, 1, 2, 3, 4]) > Vector([2, 2, 2, 2, 2]) -> Vector([False, False, False, True, True])
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Vector([0, 1, 2, 3, 4]) > [2, 2, 2, 2, 2] -> Vector([False, False, False, True, True])
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[0, 1, 2, 3, 4] > Vector([2, 2, 2, 2, 2]) -> Vector([False, False, False, True, True])
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Vector([0, 1, 2, 3, 4]) >= Vector([2, 2, 2, 2, 2]) -> Vector([False, False, True, True, True])
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Vector([0, 1, 2, 3, 4]) >= [2, 2, 2, 2, 2] -> Vector([False, False, True, True, True])
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[0, 1, 2, 3, 4] >= Vector([2, 2, 2, 2, 2]) -> Vector([False, False, True, True, True])
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@ -1,6 +1,9 @@
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# Tests for rich comparisons
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from test.test_support import TestFailed, verify, verbose
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import unittest
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from test import test_support
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import operator
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class Number:
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return self.x >= other
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def __cmp__(self, other):
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raise TestFailed, "Number.__cmp__() should not be called"
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raise test_support.TestFailed, "Number.__cmp__() should not be called"
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def __repr__(self):
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return "Number(%s)" % repr(self.x)
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return "Number(%r)" % (self.x, )
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class Vector:
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raise TypeError, "Vectors cannot be used in Boolean contexts"
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def __cmp__(self, other):
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raise TestFailed, "Vector.__cmp__() should not be called"
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raise test_support.TestFailed, "Vector.__cmp__() should not be called"
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def __repr__(self):
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return "Vector(%s)" % repr(self.data)
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return "Vector(%r)" % (self.data, )
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def __lt__(self, other):
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return Vector([a < b for a, b in zip(self.data, self.__cast(other))])
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raise ValueError, "Cannot compare vectors of different length"
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return other
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operators = "<", "<=", "==", "!=", ">", ">="
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opmap = {}
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for op in operators:
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opmap[op] = eval("lambda a, b: a %s b" % op)
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opmap = {
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"lt": (lambda a,b: a< b, operator.lt, operator.__lt__),
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"le": (lambda a,b: a<=b, operator.le, operator.__le__),
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"eq": (lambda a,b: a==b, operator.eq, operator.__eq__),
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"ne": (lambda a,b: a!=b, operator.ne, operator.__ne__),
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"gt": (lambda a,b: a> b, operator.gt, operator.__gt__),
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"ge": (lambda a,b: a>=b, operator.ge, operator.__ge__)
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}
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def testvector():
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a = Vector(range(2))
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b = Vector(range(3))
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for op in operators:
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try:
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opmap[op](a, b)
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except ValueError:
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class VectorTest(unittest.TestCase):
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def checkfail(self, error, opname, *args):
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for op in opmap[opname]:
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self.assertRaises(error, op, *args)
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def checkequal(self, opname, a, b, expres):
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for op in opmap[opname]:
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realres = op(a, b)
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# can't use assertEqual(realres, expres) here
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self.assertEqual(len(realres), len(expres))
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for i in xrange(len(realres)):
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# results are bool, so we can use "is" here
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self.assert_(realres[i] is expres[i])
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def test_mixed(self):
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# check that comparisons involving Vector objects
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# which return rich results (i.e. Vectors with itemwise
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# comparison results) work
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a = Vector(range(2))
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b = Vector(range(3))
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# all comparisons should fail for different length
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for opname in opmap:
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self.checkfail(ValueError, opname, a, b)
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a = range(5)
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b = 5 * [2]
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# try mixed arguments (but not (a, b) as that won't return a bool vector)
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args = [(a, Vector(b)), (Vector(a), b), (Vector(a), Vector(b))]
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for (a, b) in args:
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self.checkequal("lt", a, b, [True, True, False, False, False])
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self.checkequal("le", a, b, [True, True, True, False, False])
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self.checkequal("eq", a, b, [False, False, True, False, False])
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self.checkequal("ne", a, b, [True, True, False, True, True ])
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self.checkequal("gt", a, b, [False, False, False, True, True ])
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self.checkequal("ge", a, b, [False, False, True, True, True ])
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for ops in opmap.itervalues():
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for op in ops:
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# calls __nonzero__, which should fail
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self.assertRaises(TypeError, bool, op(a, b))
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class NumberTest(unittest.TestCase):
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def test_basic(self):
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# Check that comparisons involving Number objects
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# give the same results give as comparing the
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# corresponding ints
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for a in xrange(3):
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for b in xrange(3):
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for typea in (int, Number):
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for typeb in (int, Number):
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if typea==typeb==int:
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continue # the combination int, int is useless
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ta = typea(a)
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tb = typeb(b)
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for ops in opmap.itervalues():
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for op in ops:
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realoutcome = op(a, b)
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testoutcome = op(ta, tb)
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self.assertEqual(realoutcome, testoutcome)
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def checkvalue(self, opname, a, b, expres):
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for typea in (int, Number):
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for typeb in (int, Number):
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ta = typea(a)
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tb = typeb(b)
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for op in opmap[opname]:
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realres = op(ta, tb)
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realres = getattr(realres, "x", realres)
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self.assert_(realres is expres)
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def test_values(self):
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# check all operators and all comparison results
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self.checkvalue("lt", 0, 0, False)
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self.checkvalue("le", 0, 0, True )
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self.checkvalue("eq", 0, 0, True )
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self.checkvalue("ne", 0, 0, False)
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self.checkvalue("gt", 0, 0, False)
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self.checkvalue("ge", 0, 0, True )
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self.checkvalue("lt", 0, 1, True )
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self.checkvalue("le", 0, 1, True )
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self.checkvalue("eq", 0, 1, False)
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self.checkvalue("ne", 0, 1, True )
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self.checkvalue("gt", 0, 1, False)
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self.checkvalue("ge", 0, 1, False)
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self.checkvalue("lt", 1, 0, False)
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self.checkvalue("le", 1, 0, False)
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self.checkvalue("eq", 1, 0, False)
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self.checkvalue("ne", 1, 0, True )
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self.checkvalue("gt", 1, 0, True )
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self.checkvalue("ge", 1, 0, True )
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class MiscTest(unittest.TestCase):
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def test_misbehavin(self):
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class Misb:
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def __lt__(self, other): return 0
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def __gt__(self, other): return 0
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def __eq__(self, other): return 0
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def __le__(self, other): raise TestFailed, "This shouldn't happen"
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def __ge__(self, other): raise TestFailed, "This shouldn't happen"
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def __ne__(self, other): raise TestFailed, "This shouldn't happen"
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def __cmp__(self, other): raise RuntimeError, "expected"
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a = Misb()
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b = Misb()
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self.assertEqual(a<b, 0)
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self.assertEqual(a==b, 0)
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self.assertEqual(a>b, 0)
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self.assertRaises(RuntimeError, cmp, a, b)
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def test_not(self):
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# Check that exceptions in __nonzero__ are properly
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# propagated by the not operator
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import operator
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class Exc:
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pass
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else:
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raise TestFailed, "a %s b for different length should fail" % op
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a = Vector(range(5))
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b = Vector(5 * [2])
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for op in operators:
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print "%23s %-2s %-23s -> %s" % (a, op, b, opmap[op](a, b))
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print "%23s %-2s %-23s -> %s" % (a, op, b.data, opmap[op](a, b.data))
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print "%23s %-2s %-23s -> %s" % (a.data, op, b, opmap[op](a.data, b))
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try:
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if opmap[op](a, b):
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raise TestFailed, "a %s b shouldn't be true" % op
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else:
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raise TestFailed, "a %s b shouldn't be false" % op
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except TypeError:
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class Bad:
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def __nonzero__(self):
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raise Exc
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def do(bad):
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not bad
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for func in (do, operator.not_):
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self.assertRaises(Exc, func, Bad())
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def test_recursion(self):
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# Check comparison for recursive objects
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from UserList import UserList
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a = UserList(); a.append(a)
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b = UserList(); b.append(b)
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self.assert_(a == b)
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self.assert_(not a != b)
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a.append(1)
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self.assert_(a == a[0])
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self.assert_(not a != a[0])
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self.assert_(a != b)
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self.assert_(not a == b)
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b.append(0)
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self.assert_(a != b)
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self.assert_(not a == b)
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a[1] = -1
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self.assert_(a != b)
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self.assert_(not a == b)
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a = UserList()
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b = UserList()
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a.append(b)
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b.append(a)
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self.assert_(a == b)
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self.assert_(not a != b)
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b.append(17)
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self.assert_(a != b)
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self.assert_(not a == b)
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a.append(17)
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self.assert_(a == b)
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self.assert_(not a != b)
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def test_recursion2(self):
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# This test exercises the circular structure handling code
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# in PyObject_RichCompare()
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class Weird(object):
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def __eq__(self, other):
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return self != other
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def __ne__(self, other):
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return self == other
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def __lt__(self, other):
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return self > other
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def __gt__(self, other):
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return self < other
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self.assert_(Weird() == Weird())
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self.assert_(not (Weird() != Weird()))
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for op in opmap["lt"]:
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self.assertRaises(ValueError, op, Weird(), Weird())
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class DictTest(unittest.TestCase):
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def test_dicts(self):
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# Verify that __eq__ and __ne__ work for dicts even if the keys and
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# values don't support anything other than __eq__ and __ne__. Complex
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# numbers are a fine example of that.
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import random
|
||||
imag1a = {}
|
||||
for i in range(50):
|
||||
imag1a[random.randrange(100)*1j] = random.randrange(100)*1j
|
||||
items = imag1a.items()
|
||||
random.shuffle(items)
|
||||
imag1b = {}
|
||||
for k, v in items:
|
||||
imag1b[k] = v
|
||||
imag2 = imag1b.copy()
|
||||
imag2[k] = v + 1.0
|
||||
self.assert_(imag1a == imag1a)
|
||||
self.assert_(imag1a == imag1b)
|
||||
self.assert_(imag2 == imag2)
|
||||
self.assert_(imag1a != imag2)
|
||||
for opname in ("lt", "le", "gt", "ge"):
|
||||
for op in opmap[opname]:
|
||||
self.assertRaises(TypeError, op, imag1a, imag2)
|
||||
|
||||
class ListTest(unittest.TestCase):
|
||||
|
||||
def assertIs(self, a, b):
|
||||
self.assert_(a is b)
|
||||
|
||||
def test_coverage(self):
|
||||
# exercise all comparisons for lists
|
||||
x = [42]
|
||||
self.assertIs(x<x, False)
|
||||
self.assertIs(x<=x, True)
|
||||
self.assertIs(x==x, True)
|
||||
self.assertIs(x!=x, False)
|
||||
self.assertIs(x>x, False)
|
||||
self.assertIs(x>=x, True)
|
||||
y = [42, 42]
|
||||
self.assertIs(x<y, True)
|
||||
self.assertIs(x<=y, True)
|
||||
self.assertIs(x==y, False)
|
||||
self.assertIs(x!=y, True)
|
||||
self.assertIs(x>y, False)
|
||||
self.assertIs(x>=y, False)
|
||||
|
||||
def test_badentry(self):
|
||||
# make sure that exceptions for item comparison are properly
|
||||
# propagated in list comparisons
|
||||
class Exc:
|
||||
pass
|
||||
class Bad:
|
||||
def __eq__(self, other):
|
||||
raise Exc
|
||||
|
||||
def testop(a, b, op):
|
||||
try:
|
||||
ax = a.x
|
||||
except AttributeError:
|
||||
ax = a
|
||||
try:
|
||||
bx = b.x
|
||||
except AttributeError:
|
||||
bx = b
|
||||
opfunc = opmap[op]
|
||||
realoutcome = opfunc(ax, bx)
|
||||
testoutcome = opfunc(a, b)
|
||||
if realoutcome != testoutcome:
|
||||
print "Error for", a, op, b, ": expected", realoutcome,
|
||||
print "but got", testoutcome
|
||||
## else:
|
||||
## print a, op, b, "-->", testoutcome # and "true" or "false"
|
||||
x = [Bad()]
|
||||
y = [Bad()]
|
||||
|
||||
def testit(a, b):
|
||||
testop(a, b, "<")
|
||||
testop(a, b, "<=")
|
||||
testop(a, b, "==")
|
||||
testop(a, b, "!=")
|
||||
testop(a, b, ">")
|
||||
testop(a, b, ">=")
|
||||
for op in opmap["eq"]:
|
||||
self.assertRaises(Exc, op, x, y)
|
||||
|
||||
def basic():
|
||||
for a in range(3):
|
||||
for b in range(3):
|
||||
testit(Number(a), Number(b))
|
||||
testit(a, Number(b))
|
||||
testit(Number(a), b)
|
||||
def test_goodentry(self):
|
||||
# This test exercises the final call to PyObject_RichCompare()
|
||||
# in Objects/listobject.c::list_richcompare()
|
||||
class Good:
|
||||
def __lt__(self, other):
|
||||
return True
|
||||
|
||||
def tabulate(c1=Number, c2=Number):
|
||||
for op in operators:
|
||||
opfunc = opmap[op]
|
||||
print
|
||||
print "operator:", op
|
||||
print
|
||||
print "%9s" % "",
|
||||
for b in range(3):
|
||||
b = c2(b)
|
||||
print "| %9s" % b,
|
||||
print "|"
|
||||
print '----------+-' * 4
|
||||
for a in range(3):
|
||||
a = c1(a)
|
||||
print "%9s" % a,
|
||||
for b in range(3):
|
||||
b = c2(b)
|
||||
print "| %9s" % opfunc(a, b),
|
||||
print "|"
|
||||
print '----------+-' * 4
|
||||
print
|
||||
print '*' * 50
|
||||
x = [Good()]
|
||||
y = [Good()]
|
||||
|
||||
def misbehavin():
|
||||
class Misb:
|
||||
def __lt__(self, other): return 0
|
||||
def __gt__(self, other): return 0
|
||||
def __eq__(self, other): return 0
|
||||
def __le__(self, other): raise TestFailed, "This shouldn't happen"
|
||||
def __ge__(self, other): raise TestFailed, "This shouldn't happen"
|
||||
def __ne__(self, other): raise TestFailed, "This shouldn't happen"
|
||||
def __cmp__(self, other): raise RuntimeError, "expected"
|
||||
a = Misb()
|
||||
b = Misb()
|
||||
verify((a<b) == 0)
|
||||
verify((a==b) == 0)
|
||||
verify((a>b) == 0)
|
||||
try:
|
||||
print cmp(a, b)
|
||||
except RuntimeError:
|
||||
pass
|
||||
else:
|
||||
raise TestFailed, "cmp(Misb(), Misb()) didn't raise RuntimeError"
|
||||
for op in opmap["lt"]:
|
||||
self.assertIs(op(x, y), True)
|
||||
|
||||
def recursion():
|
||||
from UserList import UserList
|
||||
a = UserList(); a.append(a)
|
||||
b = UserList(); b.append(b)
|
||||
def check(s, a=a, b=b):
|
||||
if verbose:
|
||||
print "check", s
|
||||
try:
|
||||
if not eval(s):
|
||||
raise TestFailed, s + " was false but expected to be true"
|
||||
except RuntimeError, msg:
|
||||
raise TestFailed, str(msg)
|
||||
if verbose:
|
||||
print "recursion tests: a=%s, b=%s" % (a, b)
|
||||
check('a==b')
|
||||
check('not a!=b')
|
||||
a.append(1)
|
||||
if verbose:
|
||||
print "recursion tests: a=%s, b=%s" % (a, b)
|
||||
check('a!=b')
|
||||
check('not a==b')
|
||||
b.append(0)
|
||||
if verbose:
|
||||
print "recursion tests: a=%s, b=%s" % (a, b)
|
||||
check('a!=b')
|
||||
check('not a==b')
|
||||
a[1] = -1
|
||||
if verbose:
|
||||
print "recursion tests: a=%s, b=%s" % (a, b)
|
||||
check('a!=b')
|
||||
check('not a==b')
|
||||
if verbose: print "recursion tests ok"
|
||||
def test_main():
|
||||
test_support.run_classtests(VectorTest, NumberTest, MiscTest, DictTest, ListTest)
|
||||
|
||||
def dicts():
|
||||
# Verify that __eq__ and __ne__ work for dicts even if the keys and
|
||||
# values don't support anything other than __eq__ and __ne__. Complex
|
||||
# numbers are a fine example of that.
|
||||
import random
|
||||
imag1a = {}
|
||||
for i in range(50):
|
||||
imag1a[random.randrange(100)*1j] = random.randrange(100)*1j
|
||||
items = imag1a.items()
|
||||
random.shuffle(items)
|
||||
imag1b = {}
|
||||
for k, v in items:
|
||||
imag1b[k] = v
|
||||
imag2 = imag1b.copy()
|
||||
imag2[k] = v + 1.0
|
||||
verify(imag1a == imag1a, "imag1a == imag1a should have worked")
|
||||
verify(imag1a == imag1b, "imag1a == imag1b should have worked")
|
||||
verify(imag2 == imag2, "imag2 == imag2 should have worked")
|
||||
verify(imag1a != imag2, "imag1a != imag2 should have worked")
|
||||
for op in "<", "<=", ">", ">=":
|
||||
try:
|
||||
eval("imag1a %s imag2" % op)
|
||||
except TypeError:
|
||||
pass
|
||||
else:
|
||||
raise TestFailed("expected TypeError from imag1a %s imag2" % op)
|
||||
|
||||
def main():
|
||||
basic()
|
||||
tabulate()
|
||||
tabulate(c1=int)
|
||||
tabulate(c2=int)
|
||||
testvector()
|
||||
misbehavin()
|
||||
recursion()
|
||||
dicts()
|
||||
|
||||
main()
|
||||
if __name__ == "__main__":
|
||||
test_main()
|
||||
|
|
Loading…
Reference in New Issue