diff -r 000000000000 -r 6474c204b198 browser/fuel/test/browser_ApplicationStorage.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/fuel/test/browser_ApplicationStorage.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+function test() {
+  // test for existence of values
+  var hasItem = Application.storage.has("fuel-test-missing");
+  is(hasItem, false, "Check 'Application.storage.has' for nonexistent item");
+  Application.storage.set("fuel-test", "dummy");
+  hasItem = Application.storage.has("fuel-test");
+  is(hasItem, true, "Check 'Application.storage.has' for existing item");
+
+  // test getting nonexistent and existing values
+  var itemValue = Application.storage.get("fuel-test-missing", "default");
+  is(itemValue, "default", "Check 'Application.storage.get' for nonexistent item");
+  itemValue = Application.storage.get("fuel-test", "default");
+  is(itemValue, "dummy", "Check 'Application.storage.get' for existing item");
+
+  // test for overwriting an existing value
+  Application.storage.set("fuel-test", "smarty");
+  itemValue = Application.storage.get("fuel-test", "default");
+  is(itemValue, "smarty", "Check 'Application.storage.get' for overwritten item");
+
+  // check for change event when setting a value
+  waitForExplicitFinish();
+  Application.storage.events.addListener("change", onStorageChange);
+  Application.storage.set("fuel-test", "change event");
+}
+
+function onStorageChange(evt) {
+  is(evt.data, "fuel-test", "Check 'Application.storage.set' fired a change event");
+  Application.storage.events.removeListener("change", onStorageChange);
+  finish();
+}