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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Test that we can get a stack to a promise's allocation point in the chrome
* process.
*/
"use strict";
const SOURCE_URL = "browser_dbg_promises-chrome-allocation-stack.js";
const PromisesFront = require("devtools/shared/fronts/promises");
var events = require("sdk/event/core");
const STACK_DATA = [
{ functionDisplayName: "test/</<" },
{ functionDisplayName: "testGetAllocationStack" },
];
function test() {
Task.spawn(function* () {
requestLongerTimeout(10);
DebuggerServer.init();
DebuggerServer.addBrowserActors();
DebuggerServer.allowChromeProcess = true;
let client = new DebuggerClient(DebuggerServer.connectPipe());
yield connect(client);
let chrome = yield client.getProcess();
let [, tabClient] = yield attachTab(client, chrome.form);
yield tabClient.attachThread();
yield testGetAllocationStack(client, chrome.form, () => {
let p = new Promise(() => {});
p.name = "p";
let q = p.then();
q.name = "q";
let r = p.then(null, () => {});
r.name = "r";
});
yield close(client);
finish();
}).then(null, error => {
ok(false, "Got an error: " + error.message + "\n" + error.stack);
});
}
function* testGetAllocationStack(client, form, makePromises) {
let front = PromisesFront(client, form);
yield front.attach();
yield front.listPromises();
// Get the grip for promise p
let onNewPromise = new Promise(resolve => {
events.on(front, "new-promises", promises => {
for (let p of promises) {
if (p.preview.ownProperties.name &&
p.preview.ownProperties.name.value === "p") {
resolve(p);
}
}
});
});
makePromises();
let grip = yield onNewPromise;
ok(grip, "Found our promise p");
let objectClient = new ObjectClient(client, grip);
ok(objectClient, "Got Object Client");
yield new Promise(resolve => {
objectClient.getPromiseAllocationStack(response => {
ok(response.allocationStack.length, "Got promise allocation stack.");
for (let i = 0; i < STACK_DATA.length; i++) {
let data = STACK_DATA[i];
let stack = response.allocationStack[i];
ok(stack.source.url.startsWith("chrome:"), "Got a chrome source URL");
ok(stack.source.url.endsWith(SOURCE_URL), "Got correct source URL.");
is(stack.functionDisplayName, data.functionDisplayName,
"Got correct function display name.");
is(typeof stack.line, "number", "Expect stack line to be a number.");
is(typeof stack.column, "number",
"Expect stack column to be a number.");
}
resolve();
});
});
yield front.detach();
}
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