Extended mock follow tests

hive/indexer/mock_data_provider.py

@@ -5,6 +5,12 @@ class MockDataProvider():
     """ Data provider for test operations """
     block_data = {}
 
+    @classmethod
+    def is_data(cls):
+        if cls.block_data:
+            return True
+        return False
+
     @classmethod
     def print_data(cls):
         print(dumps(cls.block_data, indent=4, sort_keys=True))