forked from mirrors/gecko-dev
0f5e860391
MozReview-Commit-ID: JrEdamUz6Be Differential Revision: https://phabricator.services.mozilla.com/D8840 --HG-- extra : moz-landing-system : lando
100 lines
2.9 KiB
JavaScript
100 lines
2.9 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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/**
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* Test that we can get a stack to a promise's allocation point in the chrome
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* process.
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*/
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"use strict";
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const SOURCE_URL = "browser_dbg_promises-chrome-allocation-stack.js";
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const PromisesFront = require("devtools/shared/fronts/promises");
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var EventEmitter = require("devtools/shared/event-emitter");
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const STACK_DATA = [
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{ functionDisplayName: "test/</<" },
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{ functionDisplayName: "testGetAllocationStack" },
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];
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function test() {
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Task.spawn(function* () {
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requestLongerTimeout(10);
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DebuggerServer.init();
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DebuggerServer.registerAllActors();
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DebuggerServer.allowChromeProcess = true;
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let client = new DebuggerClient(DebuggerServer.connectPipe());
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yield connect(client);
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let chrome = yield client.mainRoot.getProcess(0);
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let [, targetFront] = yield attachTarget(client, chrome.form);
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yield targetFront.attachThread();
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yield testGetAllocationStack(client, chrome.form, () => {
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let p = new Promise(() => {});
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p.name = "p";
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let q = p.then();
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q.name = "q";
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let r = p.catch(() => {});
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r.name = "r";
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});
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yield close(client);
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finish();
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}).catch(error => {
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ok(false, "Got an error: " + error.message + "\n" + error.stack);
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});
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}
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function* testGetAllocationStack(client, form, makePromises) {
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let front = PromisesFront(client, form);
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yield front.attach();
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yield front.listPromises();
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// Get the grip for promise p
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let onNewPromise = new Promise(resolve => {
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EventEmitter.on(front, "new-promises", promises => {
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for (let p of promises) {
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if (p.preview.ownProperties.name &&
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p.preview.ownProperties.name.value === "p") {
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resolve(p);
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}
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}
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});
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});
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makePromises();
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let grip = yield onNewPromise;
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ok(grip, "Found our promise p");
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let objectClient = new ObjectClient(client, grip);
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ok(objectClient, "Got Object Client");
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yield new Promise(resolve => {
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objectClient.getPromiseAllocationStack(response => {
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ok(response.allocationStack.length, "Got promise allocation stack.");
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for (let i = 0; i < STACK_DATA.length; i++) {
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let data = STACK_DATA[i];
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let stack = response.allocationStack[i];
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ok(stack.source.url.startsWith("chrome:"), "Got a chrome source URL");
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ok(stack.source.url.endsWith(SOURCE_URL), "Got correct source URL.");
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is(stack.functionDisplayName, data.functionDisplayName,
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"Got correct function display name.");
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is(typeof stack.line, "number", "Expect stack line to be a number.");
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is(typeof stack.column, "number",
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"Expect stack column to be a number.");
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}
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resolve();
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});
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});
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yield front.detach();
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}
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