graphene/tests/core/test_fields.py
2015-10-05 20:42:24 -07:00

111 lines
2.5 KiB
Python

from py.test import raises
from collections import namedtuple
from pytest import raises
from graphene.core.fields import (
Field,
StringField,
)
from graphene.core.options import Options
from graphql.core.type import (
GraphQLField,
GraphQLNonNull,
GraphQLInt,
GraphQLString,
GraphQLBoolean,
GraphQLID,
)
class ObjectType(object):
_meta = Options()
def resolve(self, *args, **kwargs):
return None
def can_resolve(self, *args):
return True
ot = ObjectType()
ObjectType._meta.contribute_to_class(ObjectType, '_meta')
class Schema(object):
pass
schema = Schema()
def test_field_no_contributed_raises_error():
f = Field(GraphQLString)
with raises(Exception) as excinfo:
f.internal_field(schema)
def test_field_type():
f = Field(GraphQLString)
f.contribute_to_class(ot, 'field_name')
assert isinstance(f.internal_field(schema), GraphQLField)
assert f.internal_type(schema) == GraphQLString
def test_field_name_automatic_camelcase():
f = Field(GraphQLString)
f.contribute_to_class(ot, 'field_name')
assert f.name == 'fieldName'
def test_field_name_use_name_if_exists():
f = Field(GraphQLString, name='my_custom_name')
f.contribute_to_class(ot, 'field_name')
assert f.name == 'my_custom_name'
def test_stringfield_type():
f = StringField()
f.contribute_to_class(ot, 'field_name')
assert f.internal_type(schema) == GraphQLString
def test_stringfield_type_required():
f = StringField(required=True)
f.contribute_to_class(ot, 'field_name')
assert isinstance(f.internal_field(schema), GraphQLField)
assert isinstance(f.internal_type(schema), GraphQLNonNull)
def test_field_resolve():
f = StringField(required=True, resolve=lambda *args: 'RESOLVED')
f.contribute_to_class(ot, 'field_name')
field_type = f.internal_field(schema)
assert 'RESOLVED' == field_type.resolver(ot, 2, 3)
def test_field_resolve_type_custom():
class MyCustomType(object):
pass
class Schema(object):
def get_type(self, name):
if name == 'MyCustomType':
return MyCustomType
s = Schema()
f = Field('MyCustomType')
f.contribute_to_class(ot, 'field_name')
field_type = f.get_object_type(s)
assert field_type == MyCustomType
def test_field_resolve_type_custom():
s = Schema()
f = Field('self')
f.contribute_to_class(ot, 'field_name')
field_type = f.get_object_type(s)
assert field_type == ot