diff -r 000000000000 -r 6474c204b198 mobile/android/tests/background/junit3/src/testhelpers/MockClientsDataDelegate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/tests/background/junit3/src/testhelpers/MockClientsDataDelegate.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+package org.mozilla.gecko.background.testhelpers;
+
+import org.mozilla.gecko.sync.Utils;
+import org.mozilla.gecko.sync.delegates.ClientsDataDelegate;
+
+public class MockClientsDataDelegate implements ClientsDataDelegate {
+  private String accountGUID;
+  private String clientName;
+  private int clientsCount;
+
+  @Override
+  public synchronized String getAccountGUID() {
+    if (accountGUID == null) {
+      accountGUID = Utils.generateGuid();
+    }
+    return accountGUID;
+  }
+
+  @Override
+  public synchronized String getClientName() {
+    if (clientName == null) {
+      clientName = "Default Name";
+    }
+    return clientName;
+  }
+
+  @Override
+  public synchronized void setClientsCount(int clientsCount) {
+    this.clientsCount = clientsCount;
+  }
+
+  @Override
+  public synchronized int getClientsCount() {
+    return clientsCount;
+  }
+
+  @Override
+  public boolean isLocalGUID(String guid) {
+    return getAccountGUID().equals(guid);
+  }
+}
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