Push comment when non merged commit blocks a cross-repo

Change-Id: I2a0235e73b4a5c21b010bf446ded7b842489f4d0
diff --git a/src/main/java/com/criteo/gerrit/plugins/automerge/AutomaticMerger.java b/src/main/java/com/criteo/gerrit/plugins/automerge/AutomaticMerger.java
index dbf0776..0419213 100644
--- a/src/main/java/com/criteo/gerrit/plugins/automerge/AutomaticMerger.java
+++ b/src/main/java/com/criteo/gerrit/plugins/automerge/AutomaticMerger.java
@@ -226,10 +226,8 @@
       if (!info.mergeable || dependsOnNonMergedCommit) {
         log.info("Change {} is not mergeable because same topic change {} {}", change.number, info._number,
             !info.mergeable ? "is non mergeable" : "depends on a non merged commit.");
-        if (!info.mergeable) {
-          reviewUpdater.commentOnReview(change.project, change.number,
-              String.format(config.cantMergeGitConflict.getContent(), info._number));
-        }
+        PluginComment comment = !info.mergeable ? config.cantMergeGitConflict : config.cantMergeDependsOnNonMerged;
+        reviewUpdater.commentOnReview(change.project, change.number, String.format(comment.getContent(), info._number));
         return;
       }
     }
diff --git a/src/main/java/com/criteo/gerrit/plugins/automerge/AutomergeConfig.java b/src/main/java/com/criteo/gerrit/plugins/automerge/AutomergeConfig.java
index 55fa745..cd048c6 100644
--- a/src/main/java/com/criteo/gerrit/plugins/automerge/AutomergeConfig.java
+++ b/src/main/java/com/criteo/gerrit/plugins/automerge/AutomergeConfig.java
@@ -18,6 +18,7 @@
   public final PluginComment atomicReviewDetected;
   public final PluginComment atomicReviewsSameRepo;
   public final PluginComment cantMergeGitConflict;
+  public final PluginComment cantMergeDependsOnNonMerged;
 
   private final static String defaultBotEmail = "qabot@criteo.com";
   private final static String defaultTopicPrefix = "crossrepo/";
@@ -55,6 +56,8 @@
         "This cross-repo review depends on a not merged commit that must be merged first.");
     cantMergeGitConflict = new PluginComment(getCommentPath("cantmerge_git_conflict.txt"),
         "This cross-repo review is blocked by a git conflict on change #/c/%d.");
+    cantMergeDependsOnNonMerged = new PluginComment(getCommentPath("cantmerge_depends_on_non_merged.txt"),
+        "This cross-repo review is blocked by a non merged commit below #/c/%d.");
   }
 
   public final String getBotEmail() {
diff --git a/test.rb b/test.rb
index 1acfe59..3b0782e 100755
--- a/test.rb
+++ b/test.rb
@@ -86,6 +86,7 @@
 
     approve_review(commit2)
 
+    check_last_message_contains(commit2, "blocked by a non merged commit below")
     check_status(commit1a, 'NEW')
     check_status(commit1b, 'NEW')
     check_status(commit2, 'NEW')