Add unit tests for Jenkins

Add unit tests covering
- when there is no build of the job at all
- when there is no good build (ie, only failing builds)

cabot/cabotapp/tests/tests_jenkins.py

@@ -133,3 +133,46 @@ class TestGetStatus(unittest.TestCase):
             'status_code': 404
         }
         self.assertEqual(status, expected)
+
+    @patch("cabot.cabotapp.jenkins._get_jenkins_client")
+    def test_job_no_build(self, mock_jenkins):
+        unbuilt_job = {
+            u'inQueue': False,
+            u'queueItem': None,
+            u'lastCompletedBuild': None,
+            u'lastBuild': None,
+            u'color': u'notbuilt'
+        }
+        self.mock_client.get_job_info.return_value = unbuilt_job
+        mock_jenkins.return_value = self.mock_client
+        with self.assertRaises(Exception):
+            cabot_jenkins.get_job_status(self.mock_config, 'job-unbuilt')
+
+    @patch("cabot.cabotapp.jenkins._get_jenkins_client")
+    def test_job_no_good_build(self, mock_jenkins):
+        self.mock_client.get_job_info.return_value = {
+            u'inQueue': False,
+            u'queueItem': None,
+            u'lastSuccessfulBuild': None,
+            u'lastCompletedBuild': {
+                u'number': 1,
+            },
+            u'lastBuild': {
+                u'number': 1,
+            },
+            u'color': u'red'
+        }
+        self.mock_client.get_build_info.return_value = {
+            u'number': 1,
+            u'result': u'FAILURE'
+        }
+        mock_jenkins.return_value = self.mock_client
+        status = cabot_jenkins.get_job_status(self.mock_config, 'job-no-good-build')
+        expected = {
+            'active': True,
+            'succeeded': False,
+            'job_number': 1,
+            'blocked_build_time': None,
+            'status_code': 200
+        }
+        self.assertEqual(status, expected)