def test_cannot_change_type_of_enum_query(self):
class Season(enum.Enum):
winter = "WINTER"
class Quarter(enum.Enum):
q1 = "Q1"
SeasonGraphType = schema.EnumType(Season)
QuarterGraphType = schema.EnumType(Quarter)
error = pytest.raises(TypeError, lambda: SeasonGraphType().for_type(QuarterGraphType))
assert_that(str(error.value), equal_to("cannot coerce query for Season to query for Quarter"))
def test_adding_enum_queries_of_different_type_raises_type_error(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
class Size(enum.Enum):
big = "big"
small = "small"
SizeGraphType = schema.EnumType(Size)
error = pytest.raises(TypeError, lambda: DirectionGraphType() + SizeGraphType())
assert_that(str(error.value), equal_to("cannot add queries for different enum types: Direction and Size"))
def test_enum_has_no_child_types(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
assert_that(schema.collect_types((DirectionGraphType, )), contains_exactly(DirectionGraphType))
def test_adding_enum_query_to_other_query_raises_type_error(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
pytest.raises(TypeError, lambda: DirectionGraphType() + schema.ObjectType("Obj", fields=()))
def test_cannot_coerce_string_to_enum(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
self._assert_coercion_failure(DirectionGraphType, "up", "cannot coerce 'up' to Direction")
def test_enum_queries_merge_into_enum_query(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
query = DirectionGraphType() + DirectionGraphType()
assert_that(query, is_query(DirectionGraphType()))
def test_enum_type_coerces_enum_values_to_enum_values(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
self._assert_coercion(DirectionGraphType, Direction.up, Direction.up)
self._assert_coercion(DirectionGraphType, Direction.down, Direction.down)
def test_enums_are_converted_to_strings(self):
class Season(enum.Enum):
winter = "WINTER"
spring = "SPRING"
summer = "SUMMER"
autumn = "AUTUMN"
SeasonGraphType = schema.EnumType(Season)
query = SeasonGraphType()
assert_that(query.to_json_value(Season.winter), equal_to("WINTER"))
def test_enum_query_for_type_is_enum_query(self):
class Season(enum.Enum):
winter = "WINTER"
spring = "SPRING"
summer = "SUMMER"
autumn = "AUTUMN"
SeasonGraphType = schema.EnumType(Season)
query = SeasonGraphType().for_type(SeasonGraphType)
assert_that(query, is_query(SeasonGraphType()))
def test_enum_query_string_includes_type(self):
class Direction(enum.Enum):
up = "up"
down = "down"
DirectionGraphType = schema.EnumType(Direction)
query = DirectionGraphType()
assert_that(str(query), equal_to(dedent("""
EnumQuery(type=Direction)
""")))