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bpo-45292: [PEP-654] add except* (GH-29581)

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Irit Katriel 2021-12-14 16:48:15 +00:00 • committed by GitHub
parent 850aefc2c6
commit d60457a667
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34 changed files with 7070 additions and 3332 deletions
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278
Lib/test/test_exception_variations.py
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@ -172,5 +172,283 @@ class ExceptionTestCase(unittest.TestCase):
self.assertTrue(hit_finally)
self.assertTrue(hit_except)
class ExceptStarTestCases(unittest.TestCase):
def test_try_except_else_finally(self):
hit_except = False
hit_else = False
hit_finally = False
try:
raise Exception('nyaa!')
except* BaseException:
hit_except = True
else:
hit_else = True
finally:
hit_finally = True
self.assertTrue(hit_except)
self.assertTrue(hit_finally)
self.assertFalse(hit_else)
def test_try_except_else_finally_no_exception(self):
hit_except = False
hit_else = False
hit_finally = False
try:
pass
except* BaseException:
hit_except = True
else:
hit_else = True
finally:
hit_finally = True
self.assertFalse(hit_except)
self.assertTrue(hit_finally)
self.assertTrue(hit_else)
def test_try_except_finally(self):
hit_except = False
hit_finally = False
try:
raise Exception('yarr!')
except* BaseException:
hit_except = True
finally:
hit_finally = True
self.assertTrue(hit_except)
self.assertTrue(hit_finally)
def test_try_except_finally_no_exception(self):
hit_except = False
hit_finally = False
try:
pass
except* BaseException:
hit_except = True
finally:
hit_finally = True
self.assertFalse(hit_except)
self.assertTrue(hit_finally)
def test_try_except(self):
hit_except = False
try:
raise Exception('ahoy!')
except* BaseException:
hit_except = True
self.assertTrue(hit_except)
def test_try_except_no_exception(self):
hit_except = False
try:
pass
except* BaseException:
hit_except = True
self.assertFalse(hit_except)
def test_try_except_else(self):
hit_except = False
hit_else = False
try:
raise Exception('foo!')
except* BaseException:
hit_except = True
else:
hit_else = True
self.assertFalse(hit_else)
self.assertTrue(hit_except)
def test_try_except_else_no_exception(self):
hit_except = False
hit_else = False
try:
pass
except* BaseException:
hit_except = True
else:
hit_else = True
self.assertFalse(hit_except)
self.assertTrue(hit_else)
def test_try_finally_no_exception(self):
hit_finally = False
try:
pass
finally:
hit_finally = True
self.assertTrue(hit_finally)
def test_nested(self):
hit_finally = False
hit_inner_except = False
hit_inner_finally = False
try:
try:
raise Exception('inner exception')
except* BaseException:
hit_inner_except = True
finally:
hit_inner_finally = True
finally:
hit_finally = True
self.assertTrue(hit_inner_except)
self.assertTrue(hit_inner_finally)
self.assertTrue(hit_finally)
def test_nested_else(self):
hit_else = False
hit_finally = False
hit_except = False
hit_inner_except = False
hit_inner_else = False
try:
try:
pass
except* BaseException:
hit_inner_except = True
else:
hit_inner_else = True
raise Exception('outer exception')
except* BaseException:
hit_except = True
else:
hit_else = True
finally:
hit_finally = True
self.assertFalse(hit_inner_except)
self.assertTrue(hit_inner_else)
self.assertFalse(hit_else)
self.assertTrue(hit_finally)
self.assertTrue(hit_except)
def test_nested_mixed1(self):
hit_except = False
hit_finally = False
hit_inner_except = False
hit_inner_finally = False
try:
try:
raise Exception('inner exception')
except* BaseException:
hit_inner_except = True
finally:
hit_inner_finally = True
except:
hit_except = True
finally:
hit_finally = True
self.assertTrue(hit_inner_except)
self.assertTrue(hit_inner_finally)
self.assertFalse(hit_except)
self.assertTrue(hit_finally)
def test_nested_mixed2(self):
hit_except = False
hit_finally = False
hit_inner_except = False
hit_inner_finally = False
try:
try:
raise Exception('inner exception')
except:
hit_inner_except = True
finally:
hit_inner_finally = True
except* BaseException:
hit_except = True
finally:
hit_finally = True
self.assertTrue(hit_inner_except)
self.assertTrue(hit_inner_finally)
self.assertFalse(hit_except)
self.assertTrue(hit_finally)
def test_nested_else_mixed1(self):
hit_else = False
hit_finally = False
hit_except = False
hit_inner_except = False
hit_inner_else = False
try:
try:
pass
except* BaseException:
hit_inner_except = True
else:
hit_inner_else = True
raise Exception('outer exception')
except:
hit_except = True
else:
hit_else = True
finally:
hit_finally = True
self.assertFalse(hit_inner_except)
self.assertTrue(hit_inner_else)
self.assertFalse(hit_else)
self.assertTrue(hit_finally)
self.assertTrue(hit_except)
def test_nested_else_mixed2(self):
hit_else = False
hit_finally = False
hit_except = False
hit_inner_except = False
hit_inner_else = False
try:
try:
pass
except:
hit_inner_except = True
else:
hit_inner_else = True
raise Exception('outer exception')
except* BaseException:
hit_except = True
else:
hit_else = True
finally:
hit_finally = True
self.assertFalse(hit_inner_except)
self.assertTrue(hit_inner_else)
self.assertFalse(hit_else)
self.assertTrue(hit_finally)
self.assertTrue(hit_except)
if __name__ == '__main__':
unittest.main()