ProjectIT: Add tests for ref-updated events on project creation

When a new project is created its refs/meta/config branch is created
with the project's initial config. This should result in a ref-updated
event being emitted.

These tests don't create the project with an initial empty commit,
so there should therefore be no corresponding ref-updated event for
the refs/heads/master branch.

Change-Id: I5fadc4b8221637807aaa3275783cbb1228c6bbc9

gerrit-acceptance-framework/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java

@@ -867,6 +867,11 @@ public abstract class AbstractDaemonTest {
     }
   }
 
+  protected RevCommit getRemoteHead(String project, String branch)
+      throws Exception {
+    return getRemoteHead(new Project.NameKey(project), branch);
+  }
+
   protected RevCommit getRemoteHead() throws Exception {
     return getRemoteHead(project, "master");
   }

gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/api/project/ProjectIT.java

@@ -43,6 +43,13 @@ public class ProjectIT extends AbstractDaemonTest  {
             .create(name)
             .get()
             .name);
+
+    RevCommit head = getRemoteHead(name, "refs/meta/config");
+    eventRecorder.assertRefUpdatedEvents(name, "refs/meta/config",
+        null, head);
+
+    eventRecorder.assertRefUpdatedEvents(name, "refs/heads/master",
+        new String[]{});
   }
 
   @Test
@@ -53,6 +60,13 @@ public class ProjectIT extends AbstractDaemonTest  {
             .create(name + ".git")
             .get()
             .name);
+
+    RevCommit head = getRemoteHead(name, "refs/meta/config");
+    eventRecorder.assertRefUpdatedEvents(name, "refs/meta/config",
+        null, head);
+
+    eventRecorder.assertRefUpdatedEvents(name, "refs/heads/master",
+        new String[]{});
   }
 
   @Test