python (3.12.0)
1 # helper module for test_runner.Test_TextTestRunner.test_warnings
2
3 """
4 This module has a number of tests that raise different kinds of warnings.
5 When the tests are run, the warnings are caught and their messages are printed
6 to stdout. This module also accepts an arg that is then passed to
7 unittest.main to affect the behavior of warnings.
8 Test_TextTestRunner.test_warnings executes this script with different
9 combinations of warnings args and -W flags and check that the output is correct.
10 See #10535.
11 """
12
13 import sys
14 import unittest
15 import warnings
16
17 def warnfun():
18 warnings.warn('rw', RuntimeWarning)
19
20 class ESC[4;38;5;81mTestWarnings(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
21 def test_other_unittest(self):
22 self.assertAlmostEqual(2+2, 4)
23 self.assertNotAlmostEqual(4+4, 2)
24
25 # these warnings are normally silenced, but they are printed in unittest
26 def test_deprecation(self):
27 warnings.warn('dw', DeprecationWarning)
28 warnings.warn('dw', DeprecationWarning)
29 warnings.warn('dw', DeprecationWarning)
30
31 def test_import(self):
32 warnings.warn('iw', ImportWarning)
33 warnings.warn('iw', ImportWarning)
34 warnings.warn('iw', ImportWarning)
35
36 # user warnings should always be printed
37 def test_warning(self):
38 warnings.warn('uw')
39 warnings.warn('uw')
40 warnings.warn('uw')
41
42 # these warnings come from the same place; they will be printed
43 # only once by default or three times if the 'always' filter is used
44 def test_function(self):
45
46 warnfun()
47 warnfun()
48 warnfun()
49
50
51
52 if __name__ == '__main__':
53 with warnings.catch_warnings(record=True) as ws:
54 # if an arg is provided pass it to unittest.main as 'warnings'
55 if len(sys.argv) == 2:
56 unittest.main(exit=False, warnings=sys.argv.pop())
57 else:
58 unittest.main(exit=False)
59
60 # print all the warning messages collected
61 for w in ws:
62 print(w.message)
Browse
Usage
Versions