diff -r 000000000000 -r 6474c204b198 dom/fmradio/test/marionette/test_bug876597.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/fmradio/test/marionette/test_bug876597.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,90 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+MARIONETTE_TIMEOUT = 10000;
+
+SpecialPowers.addPermission("fmradio", true, document);
+SpecialPowers.addPermission("settings-read", true, document);
+SpecialPowers.addPermission("settings-write", true, document);
+
+let FMRadio = window.navigator.mozFMRadio;
+let mozSettings = window.navigator.mozSettings;
+let KEY = "airplaneMode.enabled";
+
+function verifyInitialState() {
+  log("Verifying initial state.");
+  ok(FMRadio);
+  is(FMRadio.enabled, false);
+  ok(mozSettings);
+
+  checkAirplaneModeSettings();
+}
+
+function checkAirplaneModeSettings() {
+  log("Checking airplane mode settings");
+  let req = mozSettings.createLock().get(KEY);
+  req.onsuccess = function(event) {
+    ok(!req.result[KEY], "Airplane mode is disabled.");
+    enableFMRadio();
+  };
+
+  req.onerror = function() {
+    ok(false, "Error occurs when reading settings value.");
+    finish();
+  };
+}
+
+function enableFMRadio() {
+  log("Enable FM radio");
+  let frequency = FMRadio.frequencyLowerBound + FMRadio.channelWidth;
+  let req = FMRadio.enable(frequency);
+
+  req.onsuccess = function() {
+    enableAirplaneMode();
+  };
+
+  req.onerror = function() {
+    ok(false, "Failed to enable FM radio.");
+  };
+}
+
+function enableAirplaneMode() {
+  log("Enable airplane mode");
+  FMRadio.ondisabled = function() {
+    FMRadio.ondisabled = null;
+    enableFMRadioWithAirplaneModeEnabled();
+  };
+
+  let settings = {};
+  settings[KEY] = true;
+  mozSettings.createLock().set(settings);
+}
+
+function enableFMRadioWithAirplaneModeEnabled() {
+  log("Enable FM radio with airplane mode enabled");
+  let frequency = FMRadio.frequencyLowerBound + FMRadio.channelWidth;
+  let req = FMRadio.enable(frequency);
+  req.onerror = cleanUp();
+
+  req.onsuccess = function() {
+    ok(false, "FMRadio could be enabled when airplane mode is enabled.");
+  };
+}
+
+function cleanUp() {
+  let settings = {};
+  settings[KEY] = false;
+  let req = mozSettings.createLock().set(settings);
+
+  req.onsuccess = function() {
+    ok(!FMRadio.enabled);
+    finish();
+  };
+
+  req.onerror = function() {
+    ok(false, "Error occurs when setting value");
+  };
+}
+
+verifyInitialState();
+