diff -r 000000000000 -r 6474c204b198 services/sync/tests/unit/test_status_checkSetup.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/services/sync/tests/unit/test_status_checkSetup.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+Cu.import("resource://services-sync/constants.js");
+Cu.import("resource://services-sync/status.js");
+Cu.import("resource://services-sync/util.js");
+Cu.import("resource://testing-common/services/sync/utils.js");
+
+function run_test() {
+  initTestLogging("Trace");
+  ensureLegacyIdentityManager();
+
+  try {
+    _("Ensure fresh config.");
+    Status._authManager.deleteSyncCredentials();
+
+    _("Fresh setup, we're not configured.");
+    do_check_eq(Status.checkSetup(), CLIENT_NOT_CONFIGURED);
+    do_check_eq(Status.login, LOGIN_FAILED_NO_USERNAME);
+    Status.resetSync();
+
+    _("Let's provide a username.");
+    Status._authManager.username = "johndoe";
+    do_check_eq(Status.checkSetup(), CLIENT_NOT_CONFIGURED);
+    do_check_eq(Status.login, LOGIN_FAILED_NO_PASSWORD);
+    Status.resetSync();
+
+    do_check_neq(Status._authManager.username, null);
+
+    _("Let's provide a password.");
+    Status._authManager.basicPassword = "carotsalad";
+    do_check_eq(Status.checkSetup(), CLIENT_NOT_CONFIGURED);
+    do_check_eq(Status.login, LOGIN_FAILED_NO_PASSPHRASE);
+    Status.resetSync();
+
+    _("Let's provide a passphrase");
+    Status._authManager.syncKey = "a-bcdef-abcde-acbde-acbde-acbde";
+    _("checkSetup()");
+    do_check_eq(Status.checkSetup(), STATUS_OK);
+    Status.resetSync();
+
+  } finally {
+    Svc.Prefs.resetBranch("");
+  }
+}