Bug 779217 - Intermittent test_outgoing_hangup_held.js: got OK, expected outbound to 5555552368 : unknown | got false, expected true. r=philikon

dom/telephony/test/marionette/test_outgoing_hangup_held.js

@@ -39,12 +39,8 @@ function dial() {
   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();
-  });
+  // Get call list. Answer a call if the connection is established.
+  runEmulatorCmd("gsm list", cmdCallback);
 }
 
 function answer() {
@@ -128,6 +124,26 @@ function hangUp() {
   outgoing.hangUp();
 }
 
+function cmdCallback(result) {
+  let unknownState = "outbound to  " + number + " : unknown";
+  let alertingState = "outbound to " + number + " : alerting";
+
+  log("Call list is now: " + result);
+
+  switch (result[0]) {
+    // Gsm list is empty. Wait until the connection is established.
+    case "OK":
+      runEmulatorCmd("gsm list", cmdCallback);
+      break;
+    // Answer the call now since the connection is established.
+    case unknownState: // Fall through ...
+    case alertingState:
+      is(result[1], "OK");
+      answer();
+      break;
+  }
+}
+
 function cleanUp() {
   SpecialPowers.clearUserPref(WHITELIST_PREF);
   finish();