Update graphql-core to v0.4.7b1.

Finish implementation of Unions.

Author: jhgg

epoxy/metaclasses/union.py

@@ -1,20 +1,16 @@
 from graphql.core.type.definition import GraphQLUnionType
 
-from ..utils.no_implementation_registration import no_implementation_registration
-
 
 class UnionMeta(type):
     def __new__(mcs, name, bases, attrs):
         if attrs.pop('abstract', False):
             return super(UnionMeta, mcs).__new__(mcs, name, bases, attrs)
 
-        with no_implementation_registration():
-            union_type = GraphQLUnionType(
-                name,
-                types=mcs._get_types(),
-                description=attrs.get('__doc__'),
-            )
-
+        union_type = GraphQLUnionType(
+            name,
+            types=mcs._get_types(),
+            description=attrs.get('__doc__'),
+        )
         mcs._register(union_type)
         cls = super(UnionMeta, mcs).__new__(mcs, name, bases, attrs)
         cls.T = union_type
@@ -32,4 +28,4 @@ def _get_registry():
 
     @staticmethod
     def _get_types():
-        return None
+        raise NotImplementedError('_get_types must be implemented in the sub-metaclass')

epoxy/registry.py

@@ -164,13 +164,13 @@ def _register(union):
             def _get_registry():
                 return registry
 
-        class Union(six.with_metaclass(RegistryUnionMeta)):
-            abstract = True
-
             @staticmethod
             def _get_types():
                 return TransformThunkList(types_thunk, get_named_type)
 
+        class Union(six.with_metaclass(RegistryUnionMeta)):
+            abstract = True
+
         return Union
 
     def _create_is_type_of(self, type):

setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 import sys
 
-required_packages = ['graphql-core>=0.4.7b0']
+required_packages = ['graphql-core>=0.4.7b1']
 
 if sys.version_info <= (2, 7, 0):
     required_packages.append('enum34>=1.0.4')

tests/test_unions.py

@@ -0,0 +1,50 @@
+from graphql.core import graphql
+from epoxy import TypeRegistry
+
+
+def test_runtime_type_resolution():
+    R = TypeRegistry()
+
+    class Pet(R.Union[R.Dog, R.Cat]):
+        pass
+
+    class Dog(R.ObjectType):
+        bark = R.String
+        name = R.String
+
+    class Cat(R.ObjectType):
+        meow = R.String
+        name = R.String
+
+    class Query(R.ObjectType):
+        pets = R.Pet.List
+
+    schema = R.Schema(Query)
+
+    data = Query(pets=[
+        Dog(name='Clifford', bark='Really big bark, because it\'s a really big dog.'),
+        Cat(name='Garfield', meow='Lasagna')
+    ])
+
+    result = graphql(schema, '''
+        {
+            pets {
+                __typename
+                ... on Dog {
+                    name
+                    bark
+                }
+
+                ... on Cat {
+                    name
+                    meow
+                }
+            }
+        }
+
+    ''', data)
+    assert not result.errors
+    assert result.data == {
+        'pets': [{'__typename': 'Dog', 'bark': "Really big bark, because it's a really big dog.", 'name': 'Clifford'},
+                 {'__typename': 'Cat', 'meow': 'Lasagna', 'name': 'Garfield'}]
+    }

tox.ini

@@ -7,13 +7,13 @@ whitelist_externals =
     dir
 deps =
     pytest>=2.7.2
-    graphql-core>=0.4.7b0
+    graphql-core>=0.4.7b1
     six>=1.10.0
     pytest-cov
     py{py,27,33}: enum34
     py{py,27,33,34}: singledispatch
 commands =
-    py{py,27,33,34,35}: py.test {posargs}
+    py{py,27,33,34,35}: py.test tests {posargs}
 
 [testenv:flake8]
 basepython=python3.5