ReplicationIT: fix flakiness of shouldReplicateNewBranch

shouldReplicateNewBranch() should compare the target branch with
the source SHA1 and not with the target.

Comparing two SHA1 on the target repository is flaky because
the two replication events may come at different times.

Change-Id: Icfc4da705bc07805e881faea517984fb2c9abe09

1 files changed, 3 insertions, 2 deletions

diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
index 1bb0bbf..471d729 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationIT.java
@@ -143,11 +143,12 @@ public class ReplicationIT extends LightweightPluginDaemonTest {
 
     assertThat(listReplicationTasks("refs/heads/(mybranch|master)")).hasSize(2);
 
-    try (Repository repo = repoManager.openRepository(targetProject)) {
+    try (Repository repo = repoManager.openRepository(targetProject);
+        Repository sourceRepo = repoManager.openRepository(project)) {
       waitUntil(() -> checkedGetRef(repo, newBranch) != null);
 
+      Ref masterRef = getRef(sourceRepo, master);
       Ref targetBranchRef = getRef(repo, newBranch);
-      Ref masterRef = getRef(repo, master);
       assertThat(targetBranchRef).isNotNull();
       assertThat(targetBranchRef.getObjectId()).isEqualTo(masterRef.getObjectId());
     }