def test_error_message():
schema = {"properties": {"foo": {"type": "integer"}}}
instance = {"foo": None}
try:
validate(schema, instance)
pytest.fail("Validation error should happen")
except ValidationError as exc:
assert (str(exc) == """null is not of type "integer"
On instance["foo"]:
null""")
def test_paths():
with pytest.raises(ValidationError) as exc:
validate({"items": [{"type": "string"}]}, [1])
assert exc.value.schema_path == ["items", 0, "type"]
assert exc.value.instance_path == [0]
assert exc.value.message == '1 is not of type "string"'