def test_scalar_queries_merge_into_scalar_query(self):
query = schema.Boolean() + schema.Boolean()
assert_that(query, is_query(schema.Boolean()))
def test_scalar_query_for_type_is_scalar_query(self):
query = schema.Boolean().for_type(schema.Boolean())
assert_that(query, is_query(schema.Boolean()))
def test_bool_is_unchanged(self):
query = schema.Boolean()
assert_that(query.to_json_value(True), equal_to(True))
def test_cannot_change_type_of_scalar_query(self):
error = pytest.raises(TypeError, lambda: schema.Boolean().for_type(schema.String))
assert_that(str(error.value), equal_to("cannot coerce query for Boolean to query for String"))
def test_adding_nullable_query_to_non_null_query_raises_type_error(self):
pytest.raises(TypeError, lambda: schema.NullableType(schema.Boolean)() + schema.Boolean())
def test_adding__query_to_non_list_query_raises_type_error(self):
pytest.raises(TypeError, lambda: schema.ListType(schema.Boolean)() + schema.Boolean())
def test_adding_object_query_to_other_query_raises_type_error(self):
pytest.raises(TypeError, lambda: schema.ObjectType("Obj", fields=()) + schema.Boolean())
def test_adding_scalar_queries_of_different_type_raises_type_error(self):
error = pytest.raises(TypeError, lambda: schema.Boolean() + schema.Int())
assert_that(str(error.value), equal_to("cannot add queries for different scalar types: Boolean and Int"))