def converts_id_values_to_int_or_string_asts():
assert ast_from_value('hello',
GraphQLID) == StringValueNode(value='hello')
assert ast_from_value('VALUE',
GraphQLID) == StringValueNode(value='VALUE')
# Note: EnumValues cannot contain non-identifier characters
assert ast_from_value('VA\nLUE',
GraphQLID) == StringValueNode(value='VA\nLUE')
# Note: IntValues are used when possible.
assert ast_from_value(-1, GraphQLID) == IntValueNode(value='-1')
assert ast_from_value(123, GraphQLID) == IntValueNode(value='123')
assert ast_from_value('123', GraphQLID) == IntValueNode(value='123')
assert ast_from_value('01', GraphQLID) == StringValueNode(value='01')
with raises(TypeError) as exc_info:
assert ast_from_value(False, GraphQLID)
assert str(exc_info.value) == 'ID cannot represent value: False'
assert ast_from_value(None, GraphQLID) == NullValueNode()
assert ast_from_value(INVALID, GraphQLString) is None
def converts_list_values_to_list_asts():
assert ast_from_value(
["FOO", "BAR"],
GraphQLList(GraphQLString)) == ListValueNode(values=[
StringValueNode(value="FOO"),
StringValueNode(value="BAR")
])
assert ast_from_value(["HELLO", "GOODBYE"],
GraphQLList(my_enum)) == ListValueNode(values=[
EnumValueNode(value="HELLO"),
EnumValueNode(value="GOODBYE")
])
def list_generator():
yield 1
yield 2
yield 3
assert ast_from_value(
list_generator(),
GraphQLList(GraphQLInt)) == (ListValueNode(values=[
IntValueNode(value="1"),
IntValueNode(value="2"),
IntValueNode(value="3"),
]))
def converts_id_values_to_int_or_string_asts():
assert ast_from_value("hello",
GraphQLID) == StringValueNode(value="hello")
assert ast_from_value("VALUE",
GraphQLID) == StringValueNode(value="VALUE")
# Note: EnumValues cannot contain non-identifier characters
assert ast_from_value("VA\nLUE",
GraphQLID) == StringValueNode(value="VA\nLUE")
# Note: IntValues are used when possible.
assert ast_from_value(-1, GraphQLID) == IntValueNode(value="-1")
assert ast_from_value(123, GraphQLID) == IntValueNode(value="123")
assert ast_from_value("123", GraphQLID) == IntValueNode(value="123")
assert ast_from_value("01", GraphQLID) == StringValueNode(value="01")
with raises(GraphQLError) as exc_info:
assert ast_from_value(False, GraphQLID)
assert str(exc_info.value) == "ID cannot represent value: False"
assert ast_from_value(None, GraphQLID) == NullValueNode()
assert ast_from_value(Undefined, GraphQLString) is None
def skips_invalid_list_items():
ast = ast_from_value(["FOO", None, "BAR"],
GraphQLList(GraphQLNonNull(GraphQLString)))
assert ast == ListValueNode(values=[
StringValueNode(value="FOO"),
StringValueNode(value="BAR")
])
def converts_list_values_to_list_asts():
assert ast_from_value(
["FOO", "BAR"], GraphQLList(GraphQLString)
) == ListValueNode(
values=[StringValueNode(value="FOO"), StringValueNode(value="BAR")]
)
assert ast_from_value(
["HELLO", "GOODBYE"], GraphQLList(my_enum)
) == ListValueNode(
values=[EnumValueNode(value="HELLO"), EnumValueNode(value="GOODBYE")]
)
def converts_list_values_to_list_asts():
assert ast_from_value(
['FOO', 'BAR'],
GraphQLList(GraphQLString)) == ListValueNode(values=[
StringValueNode(value='FOO'),
StringValueNode(value='BAR')
])
assert ast_from_value(['HELLO', 'GOODBYE'],
GraphQLList(my_enum)) == ListValueNode(values=[
EnumValueNode(value='HELLO'),
EnumValueNode(value='GOODBYE')
])
def converts_string_values_to_string_asts():
assert ast_from_value("hello", GraphQLString) == StringValueNode(value="hello")
assert ast_from_value("VALUE", GraphQLString) == StringValueNode(value="VALUE")
assert ast_from_value("VA\nLUE", GraphQLString) == StringValueNode(
value="VA\nLUE"
)
assert ast_from_value(123, GraphQLString) == StringValueNode(value="123")
assert ast_from_value(False, GraphQLString) == StringValueNode(value="false")
assert ast_from_value(None, GraphQLString) == NullValueNode()
assert ast_from_value(INVALID, GraphQLString) is None
def converts_using_serialize_from_a_custom_scalar_type():
pass_through_scalar = GraphQLScalarType(
"PassThroughScalar", serialize=lambda value: value,
)
assert ast_from_value("value", pass_through_scalar) == StringValueNode(
value="value"
)
return_null_scalar = GraphQLScalarType(
"ReturnNullScalar", serialize=lambda value: None,
)
assert ast_from_value("value", return_null_scalar) is None
class SomeClass:
pass
return_custom_class_scalar = GraphQLScalarType(
"ReturnCustomClassScalar", serialize=lambda value: SomeClass(),
)
with raises(TypeError) as exc_info:
ast_from_value("value", return_custom_class_scalar)
msg = str(exc_info.value)
assert msg == "Cannot convert value to AST: <SomeClass instance>."
def returns_description_of_type_definition_node():
assert (
get_description(
TypeDefinitionNode(
description=StringValueNode(value="This is a type definition")
)
)
== "This is a type definition"
)
def converts_string_values_to_string_asts():
assert ast_from_value('hello',
GraphQLString) == StringValueNode(value='hello')
assert ast_from_value('VALUE',
GraphQLString) == StringValueNode(value='VALUE')
assert ast_from_value(
'VA\nLUE', GraphQLString) == StringValueNode(value='VA\nLUE')
assert ast_from_value(123,
GraphQLString) == StringValueNode(value='123')
assert ast_from_value(False,
GraphQLString) == StringValueNode(value='false')
assert ast_from_value(None, GraphQLString) == NullValueNode()
assert ast_from_value(INVALID, GraphQLString) is None
def string_value_node(value: str, block: Optional[bool], loc: Location):
return StringValueNode(value=value, block=block, loc=loc)
def returns_none_for_node_without_description():
assert get_description(
StringValueNode(value="Just a string value")) is None
def converts_list_singletons():
assert ast_from_value(
'FOO', GraphQLList(GraphQLString)) == StringValueNode(value='FOO')
def string_value_node(value, block, loc):
return StringValueNode(value=value, block=block, loc=loc)