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"""Test comparisons of Exceptions in except clauses.
New for PyPy - Could be incorporated into CPython regression tests.
"""
class AppTestExceptionComp:
def test_exception(self):
try:
raise TypeError("nothing")
except TypeError:
pass
except:
self.fail("Identical exceptions do not match.")
def test_exceptionfail(self):
try:
raise TypeError("nothing")
except KeyError:
self.fail("Different exceptions match.")
except TypeError:
pass
except:
self.fail("Unanticipated value for exception raise.")
def test_called(self):
try:
raise SyntaxError("Invalid")
except SyntaxError:
pass
except:
self.fail("Instantiated exception does not match parent class.")
def test_calledfail(self):
try:
raise SyntaxError("Invalid")
except ZeroDivisionError:
self.fail("Instantiated exception matches different parent class.")
except SyntaxError:
pass
except:
self.fail("Unanticpated value for exception raise.")
def test_userclass(self):
class UserExcept(Exception):
pass
try:
raise UserExcept("nothing")
except UserExcept:
pass
except:
self.fail("User defined class exceptions do not match.")
def test_subclass(self):
try:
raise KeyError("key")
except LookupError:
pass
except:
self.fail("Exception does not match parent class.")
def test_deepsubclass(self):
try:
raise FloatingPointError("1.2r")
except Exception:
pass
except:
self.fail("Exception does not match grandparent class.")
def test_tuple(self):
try:
raise ArithmeticError("2+jack")
except (ZeroDivisionError, ArithmeticError):
pass
except:
self.fail("Exception does not match self in tuple.")
def test_parenttuple(self):
try:
raise ZeroDivisionError("0")
except (Exception, SystemExit):
pass
except:
self.fail("Exception does not match parent in tuple.")
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