Test unexpected number of workers.

tests/test_commands.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from django.core.management import call_command
+from django.test import TestCase
+import mock
+from django.conf import settings
+from django_rq_pulse.management.commands import rq_pulse_check
+
+@mock.patch.object(rq_pulse_check, 'send_mail')
+@mock.patch.object(settings, 'DEFAULT_FROM_EMAIL', 'sample_from@email.com')
+@mock.patch.object(settings, 'ADMINS', ['sample_admin@email.com'])
+class RQPulseCheckTestCase(TestCase):
+    def test_number_of_workers_is_not_expected(self, mock_send_mail):
+        call_command('rq_pulse_check')
+        mock_send_mail.assert_called_with(
+            'WARNING: RQ Workers maybe down!', 
+            'The number of workers 0 does not equal the expected number 2. Workers maybe down.', 
+            'sample_from@email.com', ['sample_admin@email.com'])