Merge remote-tracking branch 'remotes/origin/feat-mongoengine-connection-field-filters' into feat-mongoengine-connection-field-filters

# Conflicts:
#	graphene_mongo/fields.py
#	graphene_mongo/tests/models.py
#	graphene_mongo/tests/test_relay_query.py

Author: Arun S Kumar

graphene_mongo/tests/test_relay_query.py

@@ -1,4 +1,5 @@
 import base64
+import json
 import os
 import pytest
 
@@ -925,3 +926,41 @@ class Query(graphene.ObjectType):
     result = schema.execute(query)
     assert not result.errors
     assert result.data == expected
+
+
+def test_should_filter_mongoengine_queryset(fixtures):
+    class Query(graphene.ObjectType):
+        players = MongoengineConnectionField(PlayerNode)
+
+    query = '''
+        query players {
+            players(firstName_Istartswith: "M") {
+                edges {
+                    node {
+                        firstName
+                    }
+                }
+            }
+        }
+    '''
+    expected = {
+        'players': {
+            'edges': [
+                {
+                    'node': {
+                        'firstName': 'Michael',
+                    }
+                },
+                {
+                    'node': {
+                        'firstName': 'Magic'
+                    }
+                }
+            ]
+        }
+    }
+    schema = graphene.Schema(query=Query)
+    result = schema.execute(query)
+
+    assert not result.errors
+    assert json.dumps(result.data, sort_keys=True) == json.dumps(expected, sort_keys=True)