Fix linter error (#831)

* Fix linter error 

Lint error introduced in #830, fix a few more assertTrue->assertEqual issues

(separately, figure out why tests don't run when @code-review-doctor submits PRs)

* Update test_dashboard.py

* Update test_dashboard.py

Author: marcua

orchestra/tests/test_dashboard.py

@@ -57,14 +57,14 @@ def test_task_creation(self):
             .filter(task__step=machine_step,
                     task__project=project)[0])
 
-        self.assertTrue(machine_task_assignment.status,
-                        TaskAssignment.Status.SUBMITTED)
+        self.assertEqual(machine_task_assignment.status,
+                         TaskAssignment.Status.SUBMITTED)
 
         self.assertEqual(machine_task_assignment.in_progress_task_data,
-                        {'simple': 'json'})
+                         {'json': 'simple'})
 
-        self.assertTrue(machine_task_assignment.task.status,
-                        Task.Status.COMPLETE)
+        self.assertEqual(machine_task_assignment.task.status,
+                         Task.Status.COMPLETE)
 
     def test_index(self):
         response = self.clients[0].get('/orchestra/app/')