michael@0: /* -*- Mode: javascript; js-indent-level: 2; -*- */
michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: // Test that we can nest event loops when needed in
michael@0: // ThreadActor.prototype.synchronize.
michael@0: 
michael@0: var gClient;
michael@0: var gThreadActor;
michael@0: 
michael@0: function run_test() {
michael@0:   initTestDebuggerServer();
michael@0:   let gDebuggee = addTestGlobal("test-nesting");
michael@0:   gClient = new DebuggerClient(DebuggerServer.connectPipe());
michael@0:   gClient.connect(function () {
michael@0:     attachTestTabAndResume(gClient, "test-nesting", function (aResponse, aTabClient, aThreadClient) {
michael@0:       // Reach over the protocol connection and get a reference to the thread actor.
michael@0:       gThreadActor = aThreadClient._transport._serverConnection.getActor(aThreadClient._actor);
michael@0: 
michael@0:       test_nesting();
michael@0:     });
michael@0:   });
michael@0:   do_test_pending();
michael@0: }
michael@0: 
michael@0: function test_nesting() {
michael@0:   const thread = gThreadActor;
michael@0:   const { resolve, reject, promise: p } = promise.defer();
michael@0: 
michael@0:   let currentStep = 0;
michael@0: 
michael@0:   executeSoon(function () {
michael@0:     // Should be on the first step
michael@0:     do_check_eq(++currentStep, 1);
michael@0:     // We should have one nested event loop from synchronize
michael@0:     do_check_eq(thread._nestedEventLoops.size, 1);
michael@0:     resolve(true);
michael@0:   });
michael@0: 
michael@0:   do_check_eq(thread.synchronize(p), true);
michael@0: 
michael@0:   // Should be on the second step
michael@0:   do_check_eq(++currentStep, 2);
michael@0:   // There shouldn't be any nested event loops anymore
michael@0:   do_check_eq(thread._nestedEventLoops.size, 0);
michael@0: 
michael@0:   finishClient(gClient);
michael@0: }