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exceptions.py
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174 lines (157 loc) · 3.03 KB
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# Copyright 2018 The go-python Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Test exceptions
doc="except"
ok = False
try:
raise ValueError
except ValueError:
ok = True
assert ok
doc="except as"
ok = False
try:
raise ValueError
except ValueError as e:
ok = True
assert ok
doc="except (a, b) as"
ok = False
try:
raise ValueError
except (IOError, ValueError) as e:
ok = True
assert ok
doc="raise exception instance"
ok = False
try:
raise ValueError("Potato")
except (IOError, ValueError) as e:
ok = True
assert ok
doc="exception hierarchy"
# FIXME doesn't work because IsSubtype is broken ValueError.IsSubtype(Exception) == false
# ok = False
# try:
# raise ValueError("potato")
# except Exception:
# ok = True
# assert ok
doc="exception match"
ok = False
try:
raise ValueError
except IOError:
assert False, "Not expecting IO Error"
except ValueError:
ok = True
assert ok
doc="no exception"
ok = False
try:
pass
except ValueError:
assert False, "Not expecting ValueError"
else:
ok = True
assert ok
doc="nested"
ok = False
try:
try:
raise ValueError("potato")
except IOError as e:
assert False, "Not expecting IOError"
else:
assert False, "Expecting ValueError"
except ValueError:
ok = True
else:
assert False, "Expecting ValueError (outer)"
assert ok
doc="nested #2"
ok1 = False
ok2 = False
try:
try:
raise IOError("potato")
except IOError as e:
ok1 = True
else:
assert False, "Expecting ValueError"
except ValueError:
assert False, "Expecting IOError"
except IOError:
assert False, "Expecting IOError"
else:
ok2 = True
assert ok
doc="re-raise"
ok1 = False
ok2 = False
try:
try:
raise ValueError("potato")
except ValueError as e:
ok2 = True
raise
else:
assert False, "Expecting ValueError (inner)"
except ValueError:
ok1 = True
else:
assert False, "Expecting ValueError (outer)"
assert ok1 and ok2
doc="try/finally"
ok1 = False
ok2 = False
ok3 = False
try:
try:
ok1 = True
finally:
ok2 = True
except ValueError:
assert False, "Not expecting ValueError (outer)"
else:
ok3 = True
assert ok1 and ok2 and ok3
doc="try/finally #2"
ok1 = False
ok2 = False
try:
try:
raise ValueError()
finally:
ok1 = True
except ValueError:
ok2 = True
else:
assert False, "Expecting ValueError (outer)"
assert ok1 and ok2
doc="internal exception"
ok = False
try:
print(1/0)
except ZeroDivisionError:
ok = True
assert ok
doc = "raise in else"
ok = False
try:
try:
pass
except NameError as e:
pass
else:
raise ValueError
except ValueError:
ok = True
assert ok, "ValueError not raised"
doc = "exception repr"
repr(ValueError()) == "ValueError()"
repr(ValueError(1)) == "ValueError(1)"
repr(ValueError(1, 2, 3)) == "ValueError(1, 2, 3)"
repr(ValueError("failed")) == 'ValueError("failed")'
doc = "finished"