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101 lines
3.7 KiB
Python
101 lines
3.7 KiB
Python
import unittest
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import sys
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from test.test_support import (catch_warning, TestSkipped, run_unittest,
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TestSkipped)
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import warnings
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if not sys.py3kwarning:
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raise TestSkipped('%s must be run with the -3 flag' % __name__)
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class TestPy3KWarnings(unittest.TestCase):
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def test_type_inequality_comparisons(self):
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expected = 'type inequality comparisons not supported in 3.x.'
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with catch_warning() as w:
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self.assertWarning(int < str, w, expected)
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with catch_warning() as w:
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self.assertWarning(type < object, w, expected)
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def test_object_inequality_comparisons(self):
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expected = 'comparing unequal types not supported in 3.x.'
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with catch_warning() as w:
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self.assertWarning(str < [], w, expected)
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with catch_warning() as w:
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self.assertWarning(object() < (1, 2), w, expected)
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def test_dict_inequality_comparisons(self):
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expected = 'dict inequality comparisons not supported in 3.x.'
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with catch_warning() as w:
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self.assertWarning({} < {2:3}, w, expected)
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with catch_warning() as w:
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self.assertWarning({} <= {}, w, expected)
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with catch_warning() as w:
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self.assertWarning({} > {2:3}, w, expected)
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with catch_warning() as w:
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self.assertWarning({2:3} >= {}, w, expected)
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def test_cell_inequality_comparisons(self):
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expected = 'cell comparisons not supported in 3.x.'
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def f(x):
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def g():
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return x
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return g
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cell0, = f(0).func_closure
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cell1, = f(1).func_closure
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with catch_warning() as w:
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self.assertWarning(cell0 == cell1, w, expected)
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with catch_warning() as w:
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self.assertWarning(cell0 < cell1, w, expected)
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def test_code_inequality_comparisons(self):
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expected = 'code inequality comparisons not supported in 3.x.'
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def f(x):
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pass
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def g(x):
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pass
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with catch_warning() as w:
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self.assertWarning(f.func_code < g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code <= g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code >= g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code > g.func_code, w, expected)
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def test_builtin_function_or_method_comparisons(self):
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expected = ('builtin_function_or_method '
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'inequality comparisons not supported in 3.x.')
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func = eval
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meth = {}.get
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with catch_warning() as w:
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self.assertWarning(func < meth, w, expected)
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with catch_warning() as w:
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self.assertWarning(func > meth, w, expected)
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with catch_warning() as w:
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self.assertWarning(meth <= func, w, expected)
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with catch_warning() as w:
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self.assertWarning(meth >= func, w, expected)
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def assertWarning(self, _, warning, expected_message):
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self.assertEqual(str(warning.message), expected_message)
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def test_sort_cmp_arg(self):
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expected = "In 3.x, the cmp argument is no longer supported."
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lst = range(5)
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cmp = lambda x,y: -1
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with catch_warning() as w:
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self.assertWarning(lst.sort(cmp=cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(sorted(lst, cmp=cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(lst.sort(cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(sorted(lst, cmp), w, expected)
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def test_main():
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run_unittest(TestPy3KWarnings)
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if __name__ == '__main__':
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test_main()
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