Merge pull request #187 from graphql-python/register-interface-failure-fix

Register interface failure fix

graphene/core/schema.py

@@ -77,6 +77,7 @@ class Schema(object):
             self,
             query=self.T(self.query),
             mutation=self.T(self.mutation),
+            types=[self.T(_type) for _type in list(self._types_names.values())],
             subscription=self.T(self.subscription))
 
     def register(self, object_type, force=False):

graphene/core/tests/test_schema.py

@@ -132,6 +132,21 @@ def test_schema_register():
     assert schema.get_type('MyType') == MyType
 
 
+def test_schema_register_interfaces():
+    class Query(ObjectType):
+        f = Field(Character)
+
+        def resolve_f(self, args, info):
+            return Human()
+
+    schema = Schema(query=Query)
+
+    schema.register(Human)
+
+    result = schema.execute('{ f { name } }')
+    assert not result.errors
+
+
 def test_schema_register_no_query_type():
     schema = Schema(name='My own schema')