1 files changed, 26 insertions, 0 deletions
diff --git a/oslo_middleware/tests/test_request_id.py b/oslo_middleware/tests/test_request_id.py
index 039b7af..5c79c21 100644
--- a/oslo_middleware/tests/test_request_id.py
+++ b/oslo_middleware/tests/test_request_id.py
@@ -22,6 +22,10 @@ import webob.dec
 from oslo_middleware import request_id
 
 
+class AltHeader(request_id.RequestId):
+    compat_headers = ["x-compute-req-id", "x-silly-id"]
+
+
 class RequestIdTest(test_base.BaseTestCase):
     def test_generate_request_id(self):
         @webob.dec.wsgify
@@ -37,3 +41,25 @@ class RequestIdTest(test_base.BaseTestCase):
         self.assertThat(res_req_id, matchers.StartsWith('req-'))
         # request-id in request environ is returned as response body
         self.assertEqual(res.body.decode('utf-8'), res_req_id)
+
+    def test_compat_headers(self):
+        """Test that compat headers are set
+
+        Compat headers might exist on a super class to support
+        previous API contracts. This ensures that you can set that to
+        a list of headers and those values are the same as the
+        request_id.
+
+        """
+        @webob.dec.wsgify
+        def application(req):
+            return req.environ[request_id.ENV_REQUEST_ID]
+
+        app = AltHeader(application)
+        req = webob.Request.blank('/test')
+        res = req.get_response(app)
+
+        res_req_id = res.headers.get(request_id.HTTP_RESP_HEADER_REQUEST_ID)
+
+        self.assertEqual(res.headers.get("x-compute-req-id"), res_req_id)
+        self.assertEqual(res.headers.get("x-silly-id"), res_req_id)