TraceIT: Check that correct trace ID is returned as X_GERRIT_TRACE header

Change-Id: I7064b198e01afa16c11a0e2a3ceccc619545bfa7
Signed-off-by: Edwin Kempin <ekempin@google.com>
diff --git a/javatests/com/google/gerrit/acceptance/rest/TraceIT.java b/javatests/com/google/gerrit/acceptance/rest/TraceIT.java
index b48d47e..6769d71 100644
--- a/javatests/com/google/gerrit/acceptance/rest/TraceIT.java
+++ b/javatests/com/google/gerrit/acceptance/rest/TraceIT.java
@@ -91,7 +91,7 @@
     RestResponse response =
         adminRestSession.put("/projects/new3?" + ParameterParser.TRACE_PARAMETER + "=issue/123");
     assertThat(response.getStatusCode()).isEqualTo(SC_CREATED);
-    assertThat(response.getHeader(RestApiServlet.X_GERRIT_TRACE)).isNotNull();
+    assertThat(response.getHeader(RestApiServlet.X_GERRIT_TRACE)).isEqualTo("issue/123");
     assertThat(projectCreationListener.traceId).isEqualTo("issue/123");
     assertThat(projectCreationListener.foundTraceId).isTrue();
     assertThat(projectCreationListener.isLoggingForced).isTrue();