Bug 849714 - Fix intermittent failure in outgoing_answer_hangup_oncallschanged; r=jgriffin

dom/telephony/test/marionette/test_outgoing_answer_hangup_oncallschanged.js

@@ -46,16 +46,10 @@ function dial() {
       is(outgoing.number, number);
 
       is(outgoing, telephony.active);
-      //ok(telephony.calls === calls); // bug 717414
       is(telephony.calls.length, 1);
       is(telephony.calls[0], outgoing);
 
-      runEmulatorCmd("gsm list", function(result) {
-        log("Call list is now: " + result);
-        is(result[0], "outbound to  " + number + " : unknown");
-        is(result[1], "OK");
-        answer();
-      });
+      checkCallList();
     }
 
     if (event.call.state == "disconnected") {
@@ -69,6 +63,17 @@ function dial() {
   telephony.dial(number);
 }
 
+function checkCallList() {
+  runEmulatorCmd("gsm list", function(result) {
+    log("Call list is now: " + result)
+    if ((result[0] == "outbound to  " + number + " : unknown") && (result[1] == "OK")) {
+      answer();
+    } else {
+      window.setTimeout(checkCallList, 100);
+    }
+  });
+}
+
 function answer() {
   log("Answering the outgoing call.");
 
@@ -82,7 +87,7 @@ function answer() {
     is(outgoing, telephony.active);
 
     runEmulatorCmd("gsm list", function(result) {
-      log("Call list is now: " + result);
+      log("Call list (after 'connected' event) is now: " + result);
       is(result[0], "outbound to  " + number + " : active");
       is(result[1], "OK");
       hangUp();