def test_make_usable_as_dagster_type_called_twice():
class AType:
pass
ADagsterType = PythonObjectDagsterType(AType, name="ADagsterType",)
BDagsterType = PythonObjectDagsterType(AType, name="BDagsterType",)
make_python_type_usable_as_dagster_type(AType, ADagsterType)
make_python_type_usable_as_dagster_type(AType, ADagsterType) # should not raise an error
with pytest.raises(DagsterInvalidDefinitionError):
make_python_type_usable_as_dagster_type(AType, BDagsterType)
def test_python_object_union_type():
ntype = PythonObjectDagsterType(python_type=(int, float))
assert ntype.unique_name == "Union[int, float]"
assert_success(ntype, 1)
assert_success(ntype, 1.5)
assert_failure(ntype, "a")
def test_tuple_union_typing_type():
UnionType = PythonObjectDagsterType(python_type=(str, int, float))
assert UnionType.typing_type == typing.Union[str, int, float]
