Make api-paste.ini config optional0.3.1

* osprofiler.web.WsgiMiddleware now treats hmac_keys as optional arg
* add hmac_keys argument to enable() method to use it later in
  OpenStack services setup

Change-Id: Ib544d2732c7307bc5405b4336eda80120d2f43af

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/test_web.py b/tests/test_web.py
index 578559c..94ab5c4 100644
--- a/tests/test_web.py
+++ b/tests/test_web.py
@@ -270,6 +270,33 @@ class WebMiddlewareTestCase(test.TestCase):
         self.assertEqual("yeah!", middleware(request))
         self.assertEqual(mock_profiler_init.call_count, 0)
 
+    @mock.patch("osprofiler.web.profiler.init")
+    def test_wsgi_middleware_enable_via_python(self, mock_profiler_init):
+        request = mock.MagicMock()
+        request.get_response.return_value = "yeah!"
+        request.url = "someurl"
+        request.host_url = "someurl"
+        request.path = "path"
+        request.query_string = "query"
+        request.method = "method"
+        request.scheme = "scheme"
+        hmac_key = 'super_secret_key2'
+
+        pack = utils.signed_pack({"base_id": "1", "parent_id": "2"}, hmac_key)
+        request.headers = {
+            "a": "1",
+            "b": "2",
+            "X-Trace-Info": pack[0],
+            "X-Trace-HMAC": pack[1]
+        }
+
+        web.enable('super_secret_key1,super_secret_key2')
+        middleware = web.WsgiMiddleware("app", enabled=True)
+        self.assertEqual("yeah!", middleware(request))
+        mock_profiler_init.assert_called_once_with(hmac_key=hmac_key,
+                                                   base_id="1",
+                                                   parent_id="2")
+
     def test_disable(self):
         web.disable()
         self.assertTrue(web._DISABLED)