In /graph_json, check internal_only on Test entity and skip test for all Row entities.

dashboard/dashboard/mr_test.py

Index: dashboard/dashboard/mr_test.py
diff --git a/dashboard/dashboard/mr_test.py b/dashboard/dashboard/mr_test.py
index cf04cc408a9b962b048cd89f0cde164f22587f4d..ababfda5a42801b0b502aaca928b60248180b84e 100644
--- a/dashboard/dashboard/mr_test.py
+++ b/dashboard/dashboard/mr_test.py
@@ -4,6 +4,8 @@
 
 import datetime
 import unittest
+import webapp2
+import webtest
 
 from mapreduce import operation as op
 
@@ -29,6 +31,13 @@ _TESTS = {
 
 class MrTest(testing_common.TestCase):
 
+  def setUp(self):
+    super(MrTest, self).setUp()
+    app = webapp2.WSGIApplication([])
+    self.testapp = webtest.TestApp(app)
+    self.SetCurrentUser('foo@bar.com', is_admin=True)
+    self.PatchDatastoreHooksRequest()
+
   def _ExecOperation(self, operation):
     """Helper method to run a datastore mutation operation.