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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { PageMod } = require("sdk/page-mod");
const tabs = require("sdk/tabs");
const { startServerAsync } = require("./httpd");
const { setTimeout } = require("sdk/timers");
const serverPort = 8099;
exports.testContentScriptLatencyRegression = function*(assert) {
let server = startServerAsync(serverPort);
server.registerPathHandler("/", function handle(request, response) {
response.write(`<html>
<head>
<link rel="stylesheet" href="/slow.css">
</head>
<body>
slow loading page...
</body>
</html>`);
});
server.registerPathHandler("/slow.css", function handle(request, response) {
response.processAsync();
response.setHeader('Content-Type', 'text/css', false);
setTimeout(_ => {
response.write("body { background: red; }");
response.finish();
}, 2000);
});
let pageMod;
let worker = yield new Promise((resolve) => {
pageMod = PageMod({
include: "http://localhost:8099/",
attachTo: "top",
contentScriptWhen: "start",
contentScript: "new " + function ContentScriptScope() {
self.port.on("a-port-message", function () {
self.port.emit("document-ready-state", document.readyState);
});
},
onAttach: function(w) {
resolve(w);
}
});
tabs.open({
url: "http://localhost:8099/",
inBackground: true
});
});
worker.port.emit("a-port-message");
let waitForPortMessage = new Promise((resolve) => {
worker.port.once("document-ready-state", (msg) => {
resolve(msg);
});
});
let documentReadyState = yield waitForPortMessage;
assert.notEqual(
"complete", documentReadyState,
"content script received the port message when the page was still loading"
);
assert.notEqual(
"uninitialized", documentReadyState,
"content script should be frozen if document.readyState is still uninitialized"
);
assert.ok(
["loading", "interactive"].includes(documentReadyState),
"content script message received with document.readyState was interactive or loading"
);
// Cleanup.
pageMod.destroy();
yield new Promise((resolve) => worker.tab.close(resolve));
yield new Promise((resolve) => server.stop(resolve));
};
require("sdk/test/runner").runTestsFromModule(module);
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