def implementation_is_subtype_of_interface():
iface = GraphQLInterfaceType(
'Interface', {'field': GraphQLField(GraphQLString)})
impl = GraphQLObjectType(
'Object',
fields={'field': GraphQLField(GraphQLString)},
interfaces=[iface])
schema = test_schema(impl)
assert is_type_sub_type_of(schema, impl, iface)
def implementation_is_subtype_of_interface():
iface = GraphQLInterfaceType(
"Interface", {"field": GraphQLField(GraphQLString)})
impl = GraphQLObjectType(
"Object",
fields={"field": GraphQLField(GraphQLString)},
interfaces=[iface],
)
schema = _test_schema(impl)
assert is_type_sub_type_of(schema, impl, iface)
def implementing_interface_is_subtype_of_interface():
iface = GraphQLInterfaceType(
"Interface", {"field": GraphQLField(GraphQLString)})
iface2 = GraphQLInterfaceType(
"Interface2", {"field": GraphQLField(GraphQLString)}, [iface])
impl = GraphQLObjectType(
"Object",
{"field": GraphQLField(GraphQLString)},
[iface2, iface],
)
schema = _test_schema(impl)
assert is_type_sub_type_of(schema, iface2, iface)
def member_is_subtype_of_union():
member = GraphQLObjectType("Object",
{"field": GraphQLField(GraphQLString)})
union = GraphQLUnionType("Union", [member])
schema = _test_schema(union)
assert is_type_sub_type_of(schema, member, union)
def list_is_not_subtype_of_item():
assert not is_type_sub_type_of(_test_schema(),
GraphQLList(GraphQLInt), GraphQLInt)
def item_is_not_subtype_of_list():
assert not is_type_sub_type_of(_test_schema(), GraphQLInt,
GraphQLList(GraphQLInt))
def nullable_is_not_subtype_of_non_null():
assert (is_type_sub_type_of(_test_schema(), GraphQLInt,
GraphQLNonNull(GraphQLInt)) is False)
def non_null_is_subtype_of_nullable():
assert (is_type_sub_type_of(_test_schema(),
GraphQLNonNull(GraphQLInt), GraphQLInt)
is True)
def int_is_not_subtype_of_float():
assert (is_type_sub_type_of(_test_schema(), GraphQLInt,
GraphQLFloat) is False)
def same_reference_is_subtype():
assert (is_type_sub_type_of(_test_schema(), GraphQLString,
GraphQLString) is True)
def member_is_subtype_of_union():
member = GraphQLObjectType('Object',
{'field': GraphQLField(GraphQLString)})
union = GraphQLUnionType('Union', [member])
schema = test_schema(union)
assert is_type_sub_type_of(schema, member, union)
