// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --allow-natives-syntax --expose-debug-as debug Debug = debug.Debug; var eventsExpected = 16; var exception = null; var result = []; function updatePromise(promise, parentPromise, status, value) { var i; for (i = 0; i < result.length; ++i) { if (result[i].promise === promise) { result[i].parentPromise = parentPromise || result[i].parentPromise; result[i].status = status || result[i].status; result[i].value = value || result[i].value; break; } } assertTrue(i < result.length); } function listener(event, exec_state, event_data, data) { if (event != Debug.DebugEvent.PromiseEvent) return; try { eventsExpected--; assertTrue(event_data.promise().isPromise()); if (event_data.status() === 0) { // New promise. assertEquals("pending", event_data.promise().status()); result.push({ promise: event_data.promise().value(), status: 0 }); assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); } else if (event_data.status() !== undefined) { // Resolve/reject promise. updatePromise(event_data.promise().value(), undefined, event_data.status(), event_data.value().value()); } else { // Chain promises. assertTrue(event_data.parentPromise().isPromise()); updatePromise(event_data.promise().value(), event_data.parentPromise().value()); assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); } } catch (e) { print(e + e.stack) exception = e; } } Debug.setListener(listener); function resolver(resolve, reject) { resolve(); } var p1 = new Promise(resolver); // event var p2 = p1.then().then(); // event var p3 = new Promise(function(resolve, reject) { // event reject("rejected"); }); var p4 = p3.then(); // event var p5 = p1.then(); // event function assertAsync(b, s) { if (b) { print(s, "succeeded"); } else { %AbortJS(s + " FAILED!"); } } function testDone(iteration) { function checkResult() { if (eventsExpected === 0) { assertAsync(result.length === 6, "result.length"); assertAsync(result[0].promise === p1, "result[0].promise"); assertAsync(result[0].parentPromise === undefined, "result[0].parentPromise"); assertAsync(result[0].status === 1, "result[0].status"); assertAsync(result[0].value === undefined, "result[0].value"); assertAsync(result[1].parentPromise === p1, "result[1].parentPromise"); assertAsync(result[1].status === 1, "result[1].status"); assertAsync(result[2].promise === p2, "result[2].promise"); assertAsync(result[3].promise === p3, "result[3].promise"); assertAsync(result[3].parentPromise === undefined, "result[3].parentPromise"); assertAsync(result[3].status === -1, "result[3].status"); assertAsync(result[3].value === "rejected", "result[3].value"); assertAsync(result[4].promise === p4, "result[4].promise"); assertAsync(result[4].parentPromise === p3, "result[4].parentPromise"); assertAsync(result[4].status === -1, "result[4].status"); assertAsync(result[4].value === "rejected", "result[4].value"); assertAsync(result[5].promise === p5, "result[5].promise"); assertAsync(result[5].parentPromise === p1, "result[5].parentPromise"); assertAsync(result[5].status === 1, "result[5].status"); assertAsync(exception === null, "exception === null"); Debug.setListener(null); } else if (iteration > 10) { %AbortJS("Not all events were received!"); } else { testDone(iteration + 1); } } var iteration = iteration || 0; %EnqueueMicrotask(checkResult); } testDone();