def test_does_not_allow_non_null_lists_of_non_nulls_to_contain_null():
doc = '''
query q($input:[String!]!) {
nnListNN(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'input': ['A', None, 'B']})
e = excinfo.value
def test_does_not_allow_non_null_lists_to_be_null():
doc = '''
query q($input:[String]!) {
nnList(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'input': None})
e = excinfo.value
def test_does_not_allow_non_null_lists_to_be_null():
doc = '''
query q($input:[String]!) {
nnList(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'input': None})
e = excinfo.value
def test_does_not_allow_non_nullable_inputs_to_be_set_to_null_in_a_variable():
doc = '''
query SetsNonNullable($value: String!) {
fieldWithNonNullableStringInput(input: $value)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'value': None})
e = excinfo.value
def test_does_not_allow_unknown_types_to_be_used_as_values():
doc = '''
query q($input: UnknownType!) {
fieldWithObjectInput(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast)
e = excinfo.value
def test_does_not_allow_non_null_lists_of_non_nulls_to_contain_null():
doc = '''
query q($input:[String!]!) {
nnListNN(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'input': ['A', None, 'B']})
e = excinfo.value
def test_does_not_allow_non_nullable_inputs_to_be_set_to_null_in_a_variable():
doc = '''
query SetsNonNullable($value: String!) {
fieldWithNonNullableStringInput(input: $value)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, {'value': None})
e = excinfo.value
def test_does_not_allow_unknown_types_to_be_used_as_values():
doc = '''
query q($input: UnknownType!) {
fieldWithObjectInput(input: $input)
}
'''
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast)
e = excinfo.value
def test_errors_on_incorrect_type():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': 'foo bar'}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_errors_on_addition_of_unknown_input_field():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': {'a': 'foo', 'b': 'bar', 'c': 'baz', 'd': 'dog'}}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_errors_on_omission_of_nested_non_null():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': {'a': 'foo', 'b': 'bar'}}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_errors_on_incorrect_type():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': 'foo bar'}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_errors_on_omission_of_nested_non_null():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': {'a': 'foo', 'b': 'bar'}}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_errors_on_addition_of_unknown_input_field():
doc = '''
query q($input:TestInputObject) {
fieldWithObjectInput(input: $input)
}
'''
params = {'input': {'a': 'foo', 'b': 'bar', 'c': 'baz', 'd': 'dog'}}
ast = parse(doc)
with raises(GraphQLError) as excinfo:
execute(schema, None, ast, None, params)
e = excinfo.value
def test_raises_the_inline_operation_if_no_operation_is_provided():
doc = 'query Example { a } query OtherExample { a }'
class Data(object):
a = 'b'
ast = parse(doc)
Type = GraphQLObjectType('Type', {
'a': GraphQLField(GraphQLString)
})
with raises(GraphQLError) as excinfo:
execute(GraphQLSchema(Type), Data(), ast)
assert 'Must provide operation name if query contains multiple operations' in str(excinfo.value)
def test_raises_the_inline_operation_if_no_operation_is_provided():
doc = 'query Example { a } query OtherExample { a }'
class Data(object):
a = 'b'
ast = parse(doc)
Type = GraphQLObjectType('Type', {'a': GraphQLField(GraphQLString)})
with raises(GraphQLError) as excinfo:
execute(GraphQLSchema(Type), Data(), ast)
assert 'Must provide operation name if query contains multiple operations' in str(
excinfo.value)
def test_fails_to_execute_a_query_containing_a_type_definition():
query = parse('''
{ foo }
type Query { foo: String }
''')
schema = GraphQLSchema(
GraphQLObjectType(name='Query',
fields={'foo': GraphQLField(GraphQLString)}))
with raises(GraphQLError) as excinfo:
execute(schema, None, query)
assert excinfo.value.message == 'GraphQL cannot execute a request containing a ObjectTypeDefinition.'
def test_fails_when_an_is_type_of_check_is_not_met():
class Special(object):
def __init__(self, value):
self.value = value
class NotSpecial(object):
def __init__(self, value):
self.value = value
SpecialType = GraphQLObjectType(
"SpecialType",
fields={"value": GraphQLField(GraphQLString)},
is_type_of=lambda obj, info: isinstance(obj, Special),
)
schema = GraphQLSchema(
GraphQLObjectType(
name="Query",
fields={"specials": GraphQLField(GraphQLList(SpecialType), resolver=lambda root, *_: root["specials"])},
)
)
query = parse("{ specials { value } }")
value = {"specials": [Special("foo"), NotSpecial("bar")]}
result = execute(schema, value, query)
assert result.data == {"specials": [{"value": "foo"}, None]}
assert 'Expected value of type "SpecialType" but got NotSpecial.' in str(result.errors)
def test_nulls_out_error_subtrees():
doc = '''{
ok,
error
}'''
class Data(object):
def ok(self):
return 'ok'
def error(self):
raise Exception('Error getting error')
doc_ast = parse(doc)
Type = GraphQLObjectType('Type', {
'ok': GraphQLField(GraphQLString),
'error': GraphQLField(GraphQLString),
})
result = execute(GraphQLSchema(Type), Data(), doc_ast)
assert result.data == {'ok': 'ok', 'error': None}
assert len(result.errors) == 1
assert result.errors[0].message == 'Error getting error'
def test_when_argument_provided_cannot_be_coerced():
ast = parse('''{
fieldWithDefaultArgumentValue(input: WRONG_TYPE)
}''')
result = execute(schema, None, ast)
assert not result.errors
assert result.data == {'fieldWithDefaultArgumentValue': '"Hello World"'}
def test_when_nullable_variable_provided():
ast = parse('''query optionalVariable($optional: String) {
fieldWithDefaultArgumentValue(input: $optional)
}''')
result = execute(schema, None, ast)
assert not result.errors
assert result.data == {'fieldWithDefaultArgumentValue': '"Hello World"'}
def test_gets_execution_info_in_resolver():
encountered_schema = [None]
encountered_root_value = [None]
def resolve_type(obj, info):
encountered_schema[0] = info.schema
encountered_root_value[0] = info.root_value
return PersonType2
NamedType2 = GraphQLInterfaceType(
name='Named',
fields={'name': GraphQLField(GraphQLString)},
resolve_type=resolve_type)
PersonType2 = GraphQLObjectType(name='Person',
interfaces=[NamedType2],
fields={
'name':
GraphQLField(GraphQLString),
'friends':
GraphQLField(GraphQLList(NamedType2))
})
schema2 = GraphQLSchema(query=PersonType2)
john2 = Person('John', [], [liz])
ast = parse('''{ name, friends { name } }''')
result = execute(schema2, john2, ast)
assert result.data == {'name': 'John', 'friends': [{'name': 'Liz'}]}
assert encountered_schema[0] == schema2
assert encountered_root_value[0] == john2
def test_fails_when_an_is_type_of_check_is_not_met():
class Special(object):
def __init__(self, value):
self.value = value
class NotSpecial(object):
def __init__(self, value):
self.value = value
SpecialType = GraphQLObjectType(
'SpecialType',
fields={
'value': GraphQLField(GraphQLString),
},
is_type_of=lambda obj, info: isinstance(obj, Special))
schema = GraphQLSchema(
GraphQLObjectType(name='Query',
fields={
'specials':
GraphQLField(
GraphQLList(SpecialType),
resolver=lambda root, *_: root['specials'])
}))
query = parse('{ specials { value } }')
value = {'specials': [Special('foo'), NotSpecial('bar')]}
result = execute(schema, value, query)
assert result.data == {'specials': [{'value': 'foo'}, None]}
assert 'Expected value of type "SpecialType" but got NotSpecial.' in str(
result.errors)
def test_executes_using_union_types():
# NOTE: This is an *invalid* query, but it should be an *executable* query.
ast = parse('''
{
__typename
name
pets {
__typename
name
barks
meows
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename':
'Person',
'name':
'John',
'pets': [{
'__typename': 'Cat',
'name': 'Garfield',
'meows': False
}, {
'__typename': 'Dog',
'name': 'Odie',
'barks': True
}]
}
def test_correctly_threads_arguments():
doc = """
query Example {
b(numArg: 123, stringArg: "foo")
}
"""
def resolver(_, args, *_args):
assert args["numArg"] == 123
assert args["stringArg"] == "foo"
resolver.got_here = True
resolver.got_here = False
doc_ast = parse(doc)
Type = GraphQLObjectType(
"Type",
{
"b": GraphQLField(
GraphQLString,
args={"numArg": GraphQLArgument(GraphQLInt), "stringArg": GraphQLArgument(GraphQLString)},
resolver=resolver,
)
},
)
result = execute(GraphQLSchema(Type), None, doc_ast, "Example", {})
assert not result.errors
assert resolver.got_here
def test_executes_using_interface_types():
# NOTE: This is an *invalid* query, but it should be an *executable* query.
ast = parse('''
{
__typename
name
friends {
__typename
name
barks
meows
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename':
'Person',
'name':
'John',
'friends': [{
'__typename': 'Person',
'name': 'Liz'
}, {
'__typename': 'Dog',
'name': 'Odie',
'barks': True
}]
}
def test_executes_union_types_with_inline_fragment():
# This is the valid version of the query in the above test.
ast = parse('''
{
__typename
name
pets {
__typename
... on Dog {
name
barks
}
... on Cat {
name
meows
}
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename': 'Person',
'name': 'John',
'pets': [
{'__typename': 'Cat', 'name': 'Garfield', 'meows': False},
{'__typename': 'Dog', 'name': 'Odie', 'barks': True}
]
}
def test_executes_interface_types_with_inline_fragment():
# This is the valid version of the query in the above test.
ast = parse('''
{
__typename
name
friends {
__typename
name
... on Dog {
barks
}
... on Cat {
meows
}
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename':
'Person',
'name':
'John',
'friends': [{
'__typename': 'Person',
'name': 'Liz'
}, {
'__typename': 'Dog',
'name': 'Odie',
'barks': True
}]
}
def test_when_nullable_variable_provided():
ast = parse('''query optionalVariable($optional: String) {
fieldWithDefaultArgumentValue(input: $optional)
}''')
result = execute(schema, None, ast)
assert not result.errors
assert result.data == {'fieldWithDefaultArgumentValue': '"Hello World"'}
def test_nulls_a_complex_tree_of_nullable_fields_that_returns_null():
doc = '''
query Q {
nest {
sync
#promise
nest {
sync
#promise
}
#promiseNest {
# sync
# promise
#}
}
#promiseNest {
# sync
# promise
# nest {
# sync
# promise
# }
# promiseNest {
# sync
# promise
# }
#}
}
'''
ast = parse(doc)
result = execute(schema, NullingData(), ast, 'Q', {})
assert not result.errors
assert result.data == {'nest': {'sync': None, 'nest': {'sync': None}}}
def test_evaluates_mutations_serially():
doc = '''mutation M {
first: immediatelyChangeTheNumber(newNumber: 1) {
theNumber
},
second: promiseToChangeTheNumber(newNumber: 2) {
theNumber
},
third: immediatelyChangeTheNumber(newNumber: 3) {
theNumber
}
fourth: promiseToChangeTheNumber(newNumber: 4) {
theNumber
},
fifth: immediatelyChangeTheNumber(newNumber: 5) {
theNumber
}
}'''
ast = parse(doc)
result = execute(schema, Root(6), ast, 'M')
assert not result.errors
assert result.data == \
{
'first': {'theNumber': 1},
'second': {'theNumber': 2},
'third': {'theNumber': 3},
'fourth': {'theNumber': 4},
'fifth': {'theNumber': 5},
}
def test_executes_union_types_with_inline_fragment():
# This is the valid version of the query in the above test.
ast = parse('''
{
__typename
name
pets {
__typename
... on Dog {
name
barks
}
... on Cat {
name
meows
}
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename': 'Person',
'name': 'John',
'pets': [
{'__typename': 'Cat', 'name': 'Garfield', 'meows': False},
{'__typename': 'Dog', 'name': 'Odie', 'barks': True}
]
}
def test_correctly_threads_arguments():
doc = '''
query Example {
b(numArg: 123, stringArg: "foo")
}
'''
def resolver(_, args, *_args):
assert args['numArg'] == 123
assert args['stringArg'] == 'foo'
resolver.got_here = True
resolver.got_here = False
doc_ast = parse(doc)
Type = GraphQLObjectType('Type', {
'b': GraphQLField(
GraphQLString,
args={
'numArg': GraphQLArgument(GraphQLInt),
'stringArg': GraphQLArgument(GraphQLString),
},
resolver=resolver),
})
result = execute(GraphQLSchema(Type), None, doc_ast, 'Example', {})
assert not result.errors
assert resolver.got_here
def test_supports_the_type_root_field():
TestType = GraphQLObjectType("TestType", {"testField": GraphQLField(GraphQLString)})
schema = GraphQLSchema(TestType)
request = '{ __type(name: "TestType") { name } }'
result = execute(schema, object(), parse(request))
assert not result.errors
assert result.data == {"__type": {"name": "TestType"}}
def test_evaluates_mutations_serially():
doc = '''mutation M {
first: immediatelyChangeTheNumber(newNumber: 1) {
theNumber
},
second: promiseToChangeTheNumber(newNumber: 2) {
theNumber
},
third: immediatelyChangeTheNumber(newNumber: 3) {
theNumber
}
fourth: promiseToChangeTheNumber(newNumber: 4) {
theNumber
},
fifth: immediatelyChangeTheNumber(newNumber: 5) {
theNumber
}
}'''
ast = parse(doc)
result = execute(schema, Root(6), ast, 'M')
assert not result.errors
assert result.data == \
{
'first': {'theNumber': 1},
'second': {'theNumber': 2},
'third': {'theNumber': 3},
'fourth': {'theNumber': 4},
'fifth': {'theNumber': 5},
}
def test_when_argument_provided_cannot_be_coerced():
ast = parse('''{
fieldWithDefaultArgumentValue(input: WRONG_TYPE)
}''')
result = execute(schema, None, ast)
assert not result.errors
assert result.data == {'fieldWithDefaultArgumentValue': '"Hello World"'}
def test_executes_interface_types_with_inline_fragment():
# This is the valid version of the query in the above test.
ast = parse('''
{
__typename
name
friends {
__typename
name
... on Dog {
barks
}
... on Cat {
meows
}
}
}
''')
result = execute(schema, john, ast)
assert not result.errors
assert result.data == {
'__typename': 'Person',
'name': 'John',
'friends': [
{'__typename': 'Person', 'name': 'Liz'},
{'__typename': 'Dog', 'name': 'Odie', 'barks': True}
]
}
def test_does_not_include_illegal_fields_in_output():
doc = "mutation M { thisIsIllegalDontIncludeMe }"
ast = parse(doc)
Q = GraphQLObjectType("Q", {"a": GraphQLField(GraphQLString)})
M = GraphQLObjectType("M", {"c": GraphQLField(GraphQLString)})
result = execute(GraphQLSchema(Q, M), None, ast)
assert not result.errors
assert result.data == {}
def test_supports_the_type_root_field():
TestType = GraphQLObjectType('TestType',
{'testField': GraphQLField(GraphQLString)})
schema = GraphQLSchema(TestType)
request = '{ __type(name: "TestType") { name } }'
result = execute(schema, object(), parse(request))
assert not result.errors
assert result.data == {'__type': {'name': 'TestType'}}
def test_does_not_include_illegal_fields_in_output():
doc = 'mutation M { thisIsIllegalDontIncludeMe }'
ast = parse(doc)
Q = GraphQLObjectType('Q', {'a': GraphQLField(GraphQLString)})
M = GraphQLObjectType('M', {'c': GraphQLField(GraphQLString)})
result = execute(GraphQLSchema(Q, M), None, ast)
assert not result.errors
assert result.data == {}
def test_supports_the_type_root_field():
TestType = GraphQLObjectType('TestType', {
'testField': GraphQLField(GraphQLString)
})
schema = GraphQLSchema(TestType)
request = '{ __type(name: "TestType") { name } }'
result = execute(schema, object(), parse(request))
assert not result.errors
assert result.data == {'__type': {'name': 'TestType'}}
def test_can_introspect_on_union_and_intersection_types():
ast = parse('''
{
Named: __type(name: "Named") {
kind
name
fields { name }
interfaces { name }
possibleTypes { name }
enumValues { name }
inputFields { name }
}
Pet: __type(name: "Pet") {
kind
name
fields { name }
interfaces { name }
possibleTypes { name }
enumValues { name }
inputFields { name }
}
}''')
result = execute(schema, None, ast)
assert result.data == {
'Named': {
'enumValues': None,
'name': 'Named',
'kind': 'INTERFACE',
'interfaces': None,
'fields': [{
'name': 'name'
}],
'possibleTypes': [{
'name': 'Dog'
}, {
'name': 'Cat'
}, {
'name': 'Person'
}],
'inputFields': None
},
'Pet': {
'enumValues': None,
'name': 'Pet',
'kind': 'UNION',
'interfaces': None,
'fields': None,
'possibleTypes': [{
'name': 'Dog'
}, {
'name': 'Cat'
}],
'inputFields': None
}
}
def test_allows_lists_to_contain_values():
doc = '''
query q($input:[String]) {
list(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A']})
assert not result.errors
assert result.data == {'list': '["A"]'}
def test_nulls_the_top_level_if_sync_non_nullable_field_returns_null():
doc = '''
query Q { nonNullSync }
'''
ast = parse(doc)
result = execute(schema, NullingData(), ast)
assert result.data is None
assert len(result.errors) == 1
# TODO: check error location
assert result.errors[0]['message'] == 'Cannot return null for non-nullable type.'
def test_nulls_the_top_level_if_sync_non_nullable_field_throws():
doc = '''
query Q { nonNullSync }
'''
ast = parse(doc)
result = execute(schema, ThrowingData(), ast)
assert result.data is None
assert len(result.errors) == 1
# TODO: check error location
assert result.errors[0]['message'] == non_null_sync_error.message
def test_allows_non_null_lists_to_contain_null():
doc = '''
query q($input:[String]!) {
nnList(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A', None, 'B']})
assert not result.errors
assert result.data == {'nnList': '["A", null, "B"]'}
def test_allows_non_null_lists_to_contain_null():
doc = '''
query q($input:[String]!) {
nnList(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A', None, 'B']})
assert not result.errors
assert result.data == {'nnList': '["A", null, "B"]'}
def test_allows_lists_of_non_nulls_to_be_null():
doc = '''
query q($input:[String!]) {
listNN(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': None})
assert not result.errors
assert result.data == {'listNN': 'null'}
def test_nulls_the_top_level_if_sync_non_nullable_field_throws():
doc = '''
query Q { nonNullSync }
'''
ast = parse(doc)
result = execute(schema, ThrowingData(), ast)
assert result.data is None
assert len(result.errors) == 1
# TODO: check error location
assert result.errors[0]['message'] == str(non_null_sync_error)
def test_allows_non_null_lists_of_non_nulls_to_contain_values():
doc = '''
query q($input:[String!]!) {
nnListNN(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A']})
assert not result.errors
assert result.data == {'nnListNN': '["A"]'}
def test_inline_does_not_use_incorrect_value():
doc = '''
{
fieldWithObjectInput(input: ["foo", "bar", "baz"])
}
'''
ast = parse(doc)
result = execute(schema, None, ast)
assert not result.errors
assert json.loads(result.data['fieldWithObjectInput']) is None
def test_allows_lists_of_non_nulls_to_be_null():
doc = '''
query q($input:[String!]) {
listNN(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': None})
assert not result.errors
assert result.data == {'listNN': 'null'}
def test_allows_lists_to_contain_values():
doc = '''
query q($input:[String]) {
list(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A']})
assert not result.errors
assert result.data == {'list': '["A"]'}
def test_inline_does_not_use_incorrect_value():
doc = '''
{
fieldWithObjectInput(input: ["foo", "bar", "baz"])
}
'''
ast = parse(doc)
result = execute(schema, None, ast)
assert not result.errors
assert json.loads(result.data['fieldWithObjectInput']) is None
def test_allows_non_null_lists_of_non_nulls_to_contain_values():
doc = '''
query q($input:[String!]!) {
nnListNN(input: $input)
}
'''
ast = parse(doc)
result = execute(schema, None, ast, None, {'input': ['A']})
assert not result.errors
assert result.data == {'nnListNN': '["A"]'}
def test_nulls_a_nullable_field_that_returns_null():
doc = '''
query Q {
sync
}
'''
ast = parse(doc)
result = execute(schema, NullingData(), ast, 'Q', {})
assert not result.errors
assert result.data == {'sync': None}
def test_inline_executes_with_complex_input():
doc = '''
{
fieldWithObjectInput(input: {a: "foo", b: ["bar"], c: "baz"})
}
'''
ast = parse(doc)
result = execute(schema, None, ast)
assert not result.errors
assert json.loads(result.data['fieldWithObjectInput']) == \
{"a": "foo", "b": ["bar"], "c": "baz"}
def test_passes_along_null_for_non_nullable_inputs_if_explicitly_set_in_the_query():
doc = '''
{
fieldWithNonNullableStringInput
}
'''
ast = parse(doc)
result = execute(schema, None, ast)
assert not result.errors
assert result.data == \
{"fieldWithNonNullableStringInput": 'null'}
def test_inline_properly_coerces_single_value_to_array():
doc = '''
{
fieldWithObjectInput(input: {a: "foo", b: "bar", c: "baz"})
}
'''
ast = parse(doc)
result = execute(schema, None, ast)
assert not result.errors
assert json.loads(result.data['fieldWithObjectInput']) == \
{"a": "foo", "b": ["bar"], "c": "baz"}
