| 1 | n/a | # helper module for test_runner.Test_TextTestRunner.test_warnings |
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| 2 | n/a | |
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| 3 | n/a | """ |
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| 4 | n/a | This module has a number of tests that raise different kinds of warnings. |
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| 5 | n/a | When the tests are run, the warnings are caught and their messages are printed |
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| 6 | n/a | to stdout. This module also accepts an arg that is then passed to |
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| 7 | n/a | unittest.main to affect the behavior of warnings. |
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| 8 | n/a | Test_TextTestRunner.test_warnings executes this script with different |
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| 9 | n/a | combinations of warnings args and -W flags and check that the output is correct. |
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| 10 | n/a | See #10535. |
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| 11 | n/a | """ |
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| 12 | n/a | |
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| 13 | n/a | import sys |
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| 14 | n/a | import unittest |
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| 15 | n/a | import warnings |
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| 16 | n/a | |
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| 17 | n/a | def warnfun(): |
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| 18 | n/a | warnings.warn('rw', RuntimeWarning) |
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| 19 | n/a | |
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| 20 | n/a | class TestWarnings(unittest.TestCase): |
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| 21 | n/a | # unittest warnings will be printed at most once per type (max one message |
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| 22 | n/a | # for the fail* methods, and one for the assert* methods) |
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| 23 | n/a | def test_assert(self): |
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| 24 | n/a | self.assertEquals(2+2, 4) |
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| 25 | n/a | self.assertEquals(2*2, 4) |
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| 26 | n/a | self.assertEquals(2**2, 4) |
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| 27 | n/a | |
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| 28 | n/a | def test_fail(self): |
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| 29 | n/a | self.failUnless(1) |
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| 30 | n/a | self.failUnless(True) |
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| 31 | n/a | |
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| 32 | n/a | def test_other_unittest(self): |
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| 33 | n/a | self.assertAlmostEqual(2+2, 4) |
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| 34 | n/a | self.assertNotAlmostEqual(4+4, 2) |
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| 35 | n/a | |
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| 36 | n/a | # these warnings are normally silenced, but they are printed in unittest |
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| 37 | n/a | def test_deprecation(self): |
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| 38 | n/a | warnings.warn('dw', DeprecationWarning) |
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| 39 | n/a | warnings.warn('dw', DeprecationWarning) |
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| 40 | n/a | warnings.warn('dw', DeprecationWarning) |
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| 41 | n/a | |
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| 42 | n/a | def test_import(self): |
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| 43 | n/a | warnings.warn('iw', ImportWarning) |
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| 44 | n/a | warnings.warn('iw', ImportWarning) |
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| 45 | n/a | warnings.warn('iw', ImportWarning) |
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| 46 | n/a | |
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| 47 | n/a | # user warnings should always be printed |
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| 48 | n/a | def test_warning(self): |
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| 49 | n/a | warnings.warn('uw') |
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| 50 | n/a | warnings.warn('uw') |
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| 51 | n/a | warnings.warn('uw') |
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| 52 | n/a | |
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| 53 | n/a | # these warnings come from the same place; they will be printed |
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| 54 | n/a | # only once by default or three times if the 'always' filter is used |
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| 55 | n/a | def test_function(self): |
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| 56 | n/a | |
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| 57 | n/a | warnfun() |
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| 58 | n/a | warnfun() |
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| 59 | n/a | warnfun() |
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| 60 | n/a | |
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| 61 | n/a | |
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| 62 | n/a | |
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| 63 | n/a | if __name__ == '__main__': |
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| 64 | n/a | with warnings.catch_warnings(record=True) as ws: |
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| 65 | n/a | # if an arg is provided pass it to unittest.main as 'warnings' |
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| 66 | n/a | if len(sys.argv) == 2: |
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| 67 | n/a | unittest.main(exit=False, warnings=sys.argv.pop()) |
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| 68 | n/a | else: |
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| 69 | n/a | unittest.main(exit=False) |
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| 70 | n/a | |
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| 71 | n/a | # print all the warning messages collected |
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| 72 | n/a | for w in ws: |
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| 73 | n/a | print(w.message) |
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