Store alerts in sheriff-o-matic's memcache.

Tools/GardeningServer/alerts_test.py

Index: Tools/GardeningServer/alerts_test.py
diff --git a/Tools/GardeningServer/alerts_test.py b/Tools/GardeningServer/alerts_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..c2506cff1f66aa800a4a38eaeaa83f5d492d9427
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+++ b/Tools/GardeningServer/alerts_test.py
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+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import alerts
+import json
+import unittest
+import webtest
+
+from google.appengine.api import memcache
+from google.appengine.ext import testbed
+
+
+class AlertsTest(unittest.TestCase):
+    def setUp(self):
+        self.testbed = testbed.Testbed()
+        self.testbed.activate()
+        self.testbed.init_memcache_stub()
+        self.testapp = webtest.TestApp(alerts.app)
+
+    def tearDown(self):
+        self.testbed.deactivate()
+
+    def check_json_headers(self, res):
+        self.assertEqual(res.content_type, 'application/json')
+        # This is necessary for cross-site tools to retrieve alerts
+        self.assertEqual(res.headers['access-control-allow-origin'], '*')
+
+    def test_get_no_data_cached(self):
+        res = self.testapp.get('/alerts')
+        self.check_json_headers(res)
+        self.assertEqual(res.body, '')
+
+    def test_happy_path(self):
+        # Set it.
+        params = {'content': '{"alerts": ["hello", "world"]}'}
+        self.testapp.post('/alerts', params)
+
+        # Get it.
+        res = self.testapp.get('/alerts')
+        self.check_json_headers(res)
+        alerts = json.loads(res.body)
+
+        # The server should have stuck a 'date' on there.
+        self.assertTrue('date' in alerts)
+        self.assertEqual(type(alerts['date']), int)
+
+        self.assertEqual(alerts['alerts'], ['hello', 'world'])
+
+    def test_post_invalid_data_not_reflected(self):
+        params = {'content': '[{"this is not valid JSON'}
+        self.testapp.post('/alerts', params, status=400)
+        res = self.testapp.get('/alerts')
+        self.assertEqual(res.body, '')
+
+    def test_post_invalid_data_does_not_overwrite_valid_data(self):
+        # Populate the cache with something valid
+        params = {'content': '{"alerts": "everything is OK"}'}
+        self.testapp.post('/alerts', params)
+        self.testapp.post('/alerts', {'content': 'woozlwuzl'}, status=400)
+        res = self.testapp.get('/alerts')
+        self.check_json_headers(res)
+        alerts = json.loads(res.body)
+        self.assertEqual(alerts['alerts'], 'everything is OK')