Fix incorrect compareAndPut behaviour for Noop

The Noop implementation should always consider ref up-to-date.

Returning false from compareAndPut() would cause ref-update commands to
be invalidated before actually being executed.

Fix one of the Noop implementations of compareAndPut(), which was
erroneously returning false, and thus never considering the ref
up-to-date.

Change-Id: Icd4f5a5bb01ee006b76617a7b5f486f951393ae1
diff --git a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabase.java b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabase.java
index 2a0f972..960b311 100644
--- a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabase.java
+++ b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabase.java
@@ -60,20 +60,20 @@
   }
 
   /**
-   * Put is always considered unsuccessful
+   * Put is always considered successful
    *
    * @param project project name of the ref.
    * @param refName to store the value for.
    * @param currValue current expected value in the DB.
    * @param newValue new value to store.
    * @param <T> Type of the current and new value
-   * @return false
+   * @return true
    * @throws GlobalRefDbSystemError Never thrown by this implementation
    */
   @Override
   public <T> boolean compareAndPut(Project.NameKey project, String refName, T currValue, T newValue)
       throws GlobalRefDbSystemError {
-    return false;
+    return true;
   }
 
   /**
diff --git a/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabaseTest.java b/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabaseTest.java
index bc1435c..8c749ea 100644
--- a/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabaseTest.java
+++ b/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/dfsrefdb/NoopSharedRefDatabaseTest.java
@@ -36,6 +36,14 @@
   }
 
   @Test
+  public void compareAndPutWithRefNameShouldAlwaysReturnTrue() {
+    assertThat(
+            objectUnderTest.compareAndPut(
+                A_TEST_PROJECT_NAME_KEY, A_TEST_REF_NAME, AN_OBJECT_ID_1, AN_OBJECT_ID_2))
+        .isTrue();
+  }
+
+  @Test
   public void existsShouldAlwaysReturnFalse() {
     assertThat(objectUnderTest.exists(A_TEST_PROJECT_NAME_KEY, A_TEST_REF_NAME)).isFalse();
   }