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#8155: Preserve backward compatibility for test_support.check_warnings(). Add regression tests.

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This commit is contained in:
Florent Xicluna 2010-03-18 19:51:47 +00:00
parent f3e9b2a996
commit 735885428d
3 changed files with 87 additions and 65 deletions
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38
Lib/test/test_warnings.py
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@ -633,19 +633,33 @@ class CatchWarningTests(BaseTest):
def test_check_warnings(self):
# Explicit tests for the test_support convenience wrapper
wmod = self.module
if wmod is sys.modules['warnings']:
with test_support.check_warnings() as w:
self.assertEqual(w.warnings, [])
wmod.simplefilter("always")
wmod.warn("foo")
self.assertEqual(str(w.message), "foo")
wmod.warn("bar")
self.assertEqual(str(w.message), "bar")
self.assertEqual(str(w.warnings[0].message), "foo")
self.assertEqual(str(w.warnings[1].message), "bar")
w.reset()
self.assertEqual(w.warnings, [])
if wmod is not sys.modules['warnings']:
return
with test_support.check_warnings(quiet=False) as w:
self.assertEqual(w.warnings, [])
wmod.simplefilter("always")
wmod.warn("foo")
self.assertEqual(str(w.message), "foo")
wmod.warn("bar")
self.assertEqual(str(w.message), "bar")
self.assertEqual(str(w.warnings[0].message), "foo")
self.assertEqual(str(w.warnings[1].message), "bar")
w.reset()
self.assertEqual(w.warnings, [])
with test_support.check_warnings():
# defaults to quiet=True without argument
pass
with test_support.check_warnings(('foo', UserWarning)):
wmod.warn("foo")
with self.assertRaises(AssertionError):
with test_support.check_warnings(('', RuntimeWarning)):
# defaults to quiet=False with argument
pass
with self.assertRaises(AssertionError):
with test_support.check_warnings(('foo', RuntimeWarning)):
wmod.warn("foo")
class CCatchWarningTests(CatchWarningTests):