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35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
import unittest
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from unittest import mock
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from test.support import captured_stderr
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import idlelib.run as idlerun
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class RunTest(unittest.TestCase):
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def test_print_exception_unhashable(self):
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class UnhashableException(Exception):
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def __eq__(self, other):
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return True
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ex1 = UnhashableException('ex1')
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ex2 = UnhashableException('ex2')
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try:
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raise ex2 from ex1
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except UnhashableException:
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try:
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raise ex1
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except UnhashableException:
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with captured_stderr() as output:
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with mock.patch.object(idlerun,
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'cleanup_traceback') as ct:
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ct.side_effect = lambda t, e: t
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idlerun.print_exception()
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tb = output.getvalue().strip().splitlines()
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self.assertEqual(11, len(tb))
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self.assertIn('UnhashableException: ex2', tb[3])
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self.assertIn('UnhashableException: ex1', tb[10])
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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