1 files changed, 59 insertions, 0 deletions
diff --git a/services/sync/tests/unit/test_tracker_addChanged.js b/services/sync/tests/unit/test_tracker_addChanged.js
new file mode 100644
index 000000000..e73bd1162
--- /dev/null
+++ b/services/sync/tests/unit/test_tracker_addChanged.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+Cu.import("resource://services-sync/engines.js");
+Cu.import("resource://services-sync/service.js");
+Cu.import("resource://services-sync/util.js");
+
+function run_test() {
+  run_next_test();
+}
+
+add_test(function test_tracker_basics() {
+  let tracker = new Tracker("Tracker", Service);
+  tracker.persistChangedIDs = false;
+
+  let id = "the_id!";
+
+  _("Make sure nothing exists yet..");
+  do_check_eq(tracker.changedIDs[id], null);
+
+  _("Make sure adding of time 0 works");
+  tracker.addChangedID(id, 0);
+  do_check_eq(tracker.changedIDs[id], 0);
+
+  _("A newer time will replace the old 0");
+  tracker.addChangedID(id, 10);
+  do_check_eq(tracker.changedIDs[id], 10);
+
+  _("An older time will not replace the newer 10");
+  tracker.addChangedID(id, 5);
+  do_check_eq(tracker.changedIDs[id], 10);
+
+  _("Adding without time defaults to current time");
+  tracker.addChangedID(id);
+  do_check_true(tracker.changedIDs[id] > 10);
+
+  run_next_test();
+});
+
+add_test(function test_tracker_persistence() {
+  let tracker = new Tracker("Tracker", Service);
+  let id = "abcdef";
+
+  tracker.persistChangedIDs = true;
+  tracker.onSavedChangedIDs = function () {
+    _("IDs saved.");
+    do_check_eq(5, tracker.changedIDs[id]);
+
+    // Verify the write by reading the file back.
+    Utils.jsonLoad("changes/tracker", this, function (json) {
+      do_check_eq(5, json[id]);
+      tracker.persistChangedIDs = false;
+      delete tracker.onSavedChangedIDs;
+      run_next_test();
+    });
+  };
+
+  tracker.addChangedID(id, 5);
+});