Merge branch 'test-prometheus-metrics' into 'master'

Add tests for Prometheus queries

See merge request !228

test/float_integration_test/http.py

@@ -46,9 +46,6 @@ class SSOHandler(urllib.request.BaseHandler):
             form[name] = value
         return form
 
-    def _extract_error(self, html):
-        return self._error_pattern.search(html)
-
     def https_response(self, req, resp):
         request_url = req.get_full_url()
         if resp.code == 200 and request_url.startswith(self._login_form_url):

test/float_integration_test/test_system.py

@@ -2,6 +2,8 @@ import json
 import time
 import unittest
 from dns.resolver import Resolver
+from urllib.parse import urlencode
+from urllib.request import urlopen
 from float_integration_test import TestBase, ANSIBLE_VARS
 
 
@@ -55,6 +57,25 @@ class TestDNS(TestBase):
                     self.assertTrue(str(record) in frontend_ips)
 
 
+class TestPrometheusMetrics(TestBase):
+
+    def setUp(self):
+        self.prometheus_url = 'http://prometheus.%s:9090' % (
+            ANSIBLE_VARS['domain'],)
+
+    def _eval_expr(self, expr):
+        with urlopen(self.prometheus_url + '/api/v1/query?' + urlencode({
+                'query': expr})) as resp:
+            result = json.load(resp.body)
+            if result['status'] != 'success':
+                return None
+            return result['data']['result']
+
+    def test_all_targets_are_reachable(self):
+        result = self._eval_expr('up < 1')
+        self.assertEqual([], result)
+
+
 class TestBuiltinServiceURLs(URLTestBase):
     """Verify that all the public_endpoints are reachable.