diff -r 000000000000 -r 6474c204b198 dom/telephony/test/marionette/test_redundant_operations.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/telephony/test/marionette/test_redundant_operations.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,330 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+MARIONETTE_TIMEOUT = 60000;
+MARIONETTE_HEAD_JS = 'head.js';
+
+let inNumber = "5555551111";
+let incomingCall;
+
+function simulateIncoming() {
+  log("Simulating an incoming call.");
+
+  telephony.onincoming = function onincoming(event) {
+    log("Received 'incoming' call event.");
+    incomingCall = event.call;
+    ok(incomingCall);
+    is(incomingCall.number, inNumber);
+    is(incomingCall.state, "incoming");
+
+    is(telephony.calls.length, 1);
+    is(telephony.calls[0], incomingCall);
+
+    emulator.run("gsm list", function(result) {
+      log("Call list is now: " + result);
+      is(result[0], "inbound from " + inNumber + " : incoming");
+      is(result[1], "OK");
+      answerIncoming();
+    });
+  };
+  emulator.run("gsm call " + inNumber);
+}
+
+function answerIncoming() {
+  log("Answering the incoming call.");
+
+  let gotConnecting = false;
+  incomingCall.onconnecting = function onconnectingIn(event) {
+    log("Received 'connecting' call event for incoming call.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "connecting");
+    gotConnecting = true;
+  };
+
+  incomingCall.onconnected = function onconnectedIn(event) {
+    log("Received 'connected' call event for incoming call.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "connected");
+    ok(gotConnecting);
+
+    is(incomingCall, telephony.active);
+
+    emulator.run("gsm list", function(result) {
+      log("Call list is now: " + result);
+      is(result[0], "inbound from " + inNumber + " : active");
+      is(result[1], "OK");
+      answerAlreadyConnected();
+    });
+  };
+  incomingCall.answer();
+}
+
+function answerAlreadyConnected() {
+  log("Attempting to answer already connected call, should be ignored.");
+
+  incomingCall.onconnecting = function onconnectingErr(event) {
+    log("Received 'connecting' call event, but should not have.");
+    ok(false, "Received 'connecting' event when answered already active call");
+  };
+
+  incomingCall.onconnected = function onconnectedErr(event) {
+    log("Received 'connected' call event, but should not have.");
+    ok(false, "Received 'connected' event when answered already active call");
+  };
+
+  incomingCall.answer();
+
+  is(incomingCall.state, "connected");
+  is(telephony.calls.length, 1);
+  is(telephony.calls[0], incomingCall);
+  is(incomingCall, telephony.active);
+  hold();
+}
+
+function hold() {
+  log("Putting the call on hold.");
+
+  let gotHolding = false;
+  incomingCall.onholding = function onholding(event) {
+    log("Received 'holding' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "holding");
+    gotHolding = true;
+  };
+
+  incomingCall.onheld = function onheld(event) {
+    log("Received 'held' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "held");
+    ok(gotHolding);
+
+    is(telephony.active, null);
+    is(telephony.calls.length, 1);
+    is(telephony.calls[0], incomingCall);
+
+    emulator.run("gsm list", function(result) {
+      log("Call list is now: " + result);
+      is(result[0], "inbound from " + inNumber + " : held");
+      is(result[1], "OK");
+      holdAlreadyHeld();
+    });
+  };
+  incomingCall.hold();
+}
+
+function holdAlreadyHeld() {
+  log("Attempting to hold an already held call, should be ignored.");
+
+  incomingCall.onholding = function onholding(event) {
+    log("Received 'holding' call event, but should not have.");
+    ok(false, "Received 'holding' event when held an already held call");
+  };
+
+  incomingCall.onheld = function onheldErr(event) {
+    log("Received 'held' call event, but should not have.");
+    ok(false, "Received 'held' event when held an already held call");
+  };
+
+  incomingCall.hold();
+
+  is(incomingCall.state, "held");
+  is(telephony.active, null);
+  is(telephony.calls.length, 1);
+  is(telephony.calls[0], incomingCall);
+
+  answerHeld();
+}
+
+function answerHeld() {
+  log("Attempting to answer a held call, should be ignored.");
+
+  incomingCall.onconnecting = function onconnectingErr(event) {
+    log("Received 'connecting' call event, but should not have.");
+    ok(false, "Received 'connecting' event when answered a held call");
+  };
+
+  incomingCall.onconnected = function onconnectedErr(event) {
+    log("Received 'connected' call event, but should not have.");
+    ok(false, "Received 'connected' event when answered a held call");
+  };
+
+  incomingCall.answer();
+
+  is(incomingCall.state, "held");
+  is(telephony.active, null);
+  is(telephony.calls.length, 1);
+  is(telephony.calls[0], incomingCall);
+
+  resume();
+}
+
+function resume() {
+  log("Resuming the held call.");
+
+  let gotResuming = false;
+  incomingCall.onresuming = function onresuming(event) {
+    log("Received 'resuming' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "resuming");
+    gotResuming = true;
+  };
+
+  incomingCall.onconnected = function onconnected(event) {
+    log("Received 'connected' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "connected");
+    ok(gotResuming);
+
+    is(incomingCall, telephony.active);
+    is(telephony.calls.length, 1);
+    is(telephony.calls[0], incomingCall);
+
+    emulator.run("gsm list", function(result) {
+      log("Call list is now: " + result);
+      is(result[0], "inbound from " + inNumber + " : active");
+      is(result[1], "OK");
+      resumeNonHeld();
+    });
+  };
+  incomingCall.resume();
+}
+
+function resumeNonHeld() {
+  log("Attempting to resume non-held call, should be ignored.");
+
+  incomingCall.onresuming = function onresumingErr(event) {
+    log("Received 'resuming' call event, but should not have.");
+    ok(false, "Received 'resuming' event when resumed non-held call");
+  };
+
+  incomingCall.onconnected = function onconnectedErr(event) {
+    log("Received 'connected' call event, but should not have.");
+    ok(false, "Received 'connected' event when resumed non-held call");
+  };
+
+  incomingCall.resume();
+
+  is(incomingCall.state, "connected");
+  is(telephony.calls.length, 1);
+  is(telephony.calls[0], incomingCall);
+  is(incomingCall, telephony.active);
+  hangUp();
+}
+
+function hangUp() {
+  log("Hanging up the call (local hang-up).");
+
+  let gotDisconnecting = false;
+  incomingCall.ondisconnecting = function ondisconnecting(event) {
+    log("Received 'disconnecting' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "disconnecting");
+    gotDisconnecting = true;
+  };
+
+  incomingCall.ondisconnected = function ondisconnectedOut(event) {
+    log("Received 'disconnected' call event.");
+    is(incomingCall, event.call);
+    is(incomingCall.state, "disconnected");
+    ok(gotDisconnecting);
+
+    is(telephony.active, null);
+    is(telephony.calls.length, 0);
+
+    emulator.run("gsm list", function(result) {
+      log("Call list is now: " + result);
+      is(result[0], "OK");
+      answerDisconnected();
+    });
+  };
+  incomingCall.hangUp();
+}
+
+function answerDisconnected() {
+  log("Attempting to answer disconnected call, should be ignored.");
+
+  incomingCall.onconnecting = function onconnectingErr(event) {
+    log("Received 'connecting' call event, but should not have.");
+    ok(false, "Received 'connecting' event when answered disconnected call");
+  };
+
+  incomingCall.onconnected = function onconnectedErr(event) {
+    log("Received 'connected' call event, but should not have.");
+    ok(false, "Received 'connected' event when answered disconnected call");
+  };
+
+  incomingCall.answer();
+
+  is(telephony.active, null);
+  is(telephony.calls.length, 0);
+  holdDisconnected();
+}
+
+function holdDisconnected() {
+  log("Attempting to hold disconnected call, should be ignored.");
+
+  incomingCall.onholding = function onholdingErr(event) {
+    log("Received 'holding' call event, but should not have.");
+    ok(false, "Received 'holding' event when held a disconnected call");
+  };
+
+  incomingCall.onheld = function onheldErr(event) {
+    log("Received 'held' call event, but should not have.");
+    ok(false, "Received 'held' event when held a disconnected call");
+  };
+
+  incomingCall.hold();
+
+  is(telephony.active, null);
+  is(telephony.calls.length, 0);
+  resumeDisconnected();
+}
+
+function resumeDisconnected() {
+  log("Attempting to resume disconnected call, should be ignored.");
+
+  incomingCall.onresuming = function onresumingErr(event) {
+    log("Received 'resuming' call event, but should not have.");
+    ok(false, "Received 'resuming' event when resumed disconnected call");
+  };
+
+  incomingCall.onconnected = function onconnectedErr(event) {
+    log("Received 'connected' call event, but should not have.");
+    ok(false, "Received 'connected' event when resumed disconnected call");
+  };
+
+  incomingCall.resume();
+
+  is(telephony.active, null);
+  is(telephony.calls.length, 0);
+  hangUpNonConnected();
+}
+
+function hangUpNonConnected() {
+  log("Attempting to hang-up disconnected call, should be ignored.");
+
+  incomingCall.ondisconnecting = function ondisconnectingErr(event) {
+    log("Received 'disconnecting' call event, but should not have.");
+    ok(false, "Received 'disconnecting' event when hung-up non-active call");
+  };
+
+  incomingCall.ondisconnected = function ondisconnectedErr(event) {
+    log("Received 'disconnected' call event, but should not have.");
+    ok(false, "Received 'disconnected' event when hung-up non-active call");
+  };
+
+  incomingCall.hangUp();
+
+  is(telephony.active, null);
+  is(telephony.calls.length, 0);
+  cleanUp();
+}
+
+function cleanUp() {
+  telephony.onincoming = null;
+  finish();
+}
+
+startTest(function() {
+  simulateIncoming();
+});