let { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js"); const NUM_USER_CONTEXTS = 3; let gHits = 0; let server = new HttpServer(); server.registerPathHandler("/image.png", imageHandler); server.registerPathHandler("/file.html", fileHandler); server.start(-1); let BASE_URI = "http://localhost:" + server.identity.primaryPort; let IMAGE_URI = BASE_URI + "/image.png"; let FILE_URI = BASE_URI + "/file.html"; function imageHandler(metadata, response) { gHits++; response.setHeader("Cache-Control", "max-age=10000", false); response.setStatusLine(metadata.httpVersion, 200, "OK"); response.setHeader("Content-Type", "image/png", false); var body = atob( "iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAEUlEQVQImWP4z8AAQTAamQkAhpcI+DeMzFcAAAAASUVORK5CYII=" ); response.bodyOutputStream.write(body, body.length); } function fileHandler(metadata, response) { response.setStatusLine(metadata.httpVersion, 200, "OK"); response.setHeader("Content-Type", "text/html", false); let body = `

`; response.bodyOutputStream.write(body, body.length); } add_setup(async function () { // make sure userContext is enabled. await SpecialPowers.pushPrefEnv({ set: [["privacy.userContext.enabled", true]], }); }); // opens `uri' in a new tab with the provided userContextId and focuses it. // returns the newly opened tab async function openTabInUserContext(uri, userContextId) { // open the tab in the correct userContextId let tab = BrowserTestUtils.addTab(gBrowser, uri, { userContextId }); // select tab and make sure its browser is focused gBrowser.selectedTab = tab; tab.ownerGlobal.focus(); let browser = gBrowser.getBrowserForTab(tab); await BrowserTestUtils.browserLoaded(browser); return tab; } add_task(async function test() { for ( let userContextId = 0; userContextId < NUM_USER_CONTEXTS; userContextId++ ) { let tab = await openTabInUserContext(FILE_URI, userContextId); gBrowser.removeTab(tab); } is( gHits, NUM_USER_CONTEXTS, "should get an image request for each user contexts" ); });