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Code Issues Projects Releases Packages Wiki Activity Actions 8

be more robust against the filters list changing under us (closes #24096)

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This commit is contained in:
Benjamin Peterson 2015-05-03 11:23:37 -04:00
parent 501182a47b
commit deff2b76ec
3 changed files with 31 additions and 6 deletions
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12
Lib/test/test_warnings.py
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@ -185,6 +185,18 @@ class FilterTests(BaseTest):
self.assertEqual(str(w[-1].message), text)
self.assertTrue(w[-1].category is UserWarning)
def test_mutate_filter_list(self):
class X:
def match(self, a):
L[:] = []
L = [("default",X(),UserWarning,X(),0) for i in range(2)]
with original_warnings.catch_warnings(record=True,
module=self.module) as w:
self.module.filters = L
self.module.warn_explicit(UserWarning("b"), None, "f.py", 42)
self.assertEqual(str(w[-1].message), "b")
class CFilterTests(FilterTests, unittest.TestCase):
module = c_warnings