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bpo-46563: Add tests for context of exception in finally block #30986

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Merged
iritkatriel merged 1 commit into from
Jan 28, 2022
Merged

bpo-46563: Add tests for context of exception in finally block #30986

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50 changes: 50 additions & 0 deletions Lib/test/test_exceptions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1163,6 +1163,56 @@ class E(Exception):
self.assertIs(b.__context__, a)
self.assertIs(a.__context__, c)

def test_context_of_exception_in_try_and_finally(self):
try:
try:
te = TypeError(1)
raise te
finally:
ve = ValueError(2)
raise ve
except Exception as e:
exc = e

self.assertIs(exc, ve)
self.assertIs(exc.__context__, te)

def test_context_of_exception_in_except_and_finally(self):
try:
try:
te = TypeError(1)
raise te
except:
ve = ValueError(2)
raise ve
finally:
oe = OSError(3)
raise oe
except Exception as e:
exc = e

self.assertIs(exc, oe)
self.assertIs(exc.__context__, ve)
self.assertIs(exc.__context__.__context__, te)

def test_context_of_exception_in_else_and_finally(self):
try:
try:
pass
except:
pass
else:
ve = ValueError(1)
raise ve
finally:
oe = OSError(2)
raise oe
except Exception as e:
exc = e

self.assertIs(exc, oe)
self.assertIs(exc.__context__, ve)

def test_unicode_change_attributes(self):
# See issue 7309. This was a crasher.

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