def test_reraise_without_value():
with pytest.raises(ValidationError) as caught:
exceptions.raise_from(ValidationError, None)
# The first is obvious from pytest.raises. The rest tests
# known attributes
assert caught.type == ValidationError
assert str(caught.value) == ''
def test_reraise_with_value():
with pytest.raises(ValidationError) as caught:
try:
raise RuntimeError("foo")
except RuntimeError as inner:
exceptions.raise_from(ValidationError, inner)
# The first is obvious from pytest.raises. The rest tests
# known attributes
assert caught.type == ValidationError
assert str(caught.value) == 'foo'
def test_reraise_with_empty_value_string_extra_message():
with pytest.raises(ValidationError) as caught:
try:
raise RuntimeError()
except RuntimeError as inner:
exceptions.raise_from(ValidationError, inner, "asdf")
# The first is obvious from pytest.raises. The rest tests
# known attributes
assert caught.type == ValidationError
assert str(caught.value) == "asdf"
