browser_NetworkListener.js

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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/. */

const { NavigationManager } = ChromeUtils.importESModule(

  "chrome://remote/content/shared/NavigationManager.sys.mjs"

);

const { NetworkListener } = ChromeUtils.importESModule(

  "chrome://remote/content/shared/listeners/NetworkListener.sys.mjs"

);

const { TabManager } = ChromeUtils.importESModule(

  "chrome://remote/content/shared/TabManager.sys.mjs"

);

add_task(async function test_beforeRequestSent() {

  const navigationManager = new NavigationManager();

  navigationManager.startMonitoring();

  const listener = new NetworkListener(navigationManager);

  const events = [];

  const onEvent = (name, data) => events.push(data);

  listener.on("before-request-sent", onEvent);

  const tab1 = BrowserTestUtils.addTab(

    gBrowser,

    "https://example.com/document-builder.sjs?html=tab"

);

  await BrowserTestUtils.browserLoaded(tab1.linkedBrowser);

  const contextId1 = TabManager.getIdForBrowser(tab1.linkedBrowser);

  const tab2 = BrowserTestUtils.addTab(

    gBrowser,

    "https://example.com/document-builder.sjs?html=tab2"

);

  await BrowserTestUtils.browserLoaded(tab2.linkedBrowser);

  const contextId2 = TabManager.getIdForBrowser(tab2.linkedBrowser);

  listener.startListening();

  await fetch(tab1.linkedBrowser, "https://example.com/?1");

  Assert.equal(events.length, 1, "One event was received");

  assertNetworkEvent(events[0], contextId1, "https://example.com/?1");

  info("Check that events are no longer emitted after calling stopListening");

  listener.stopListening();

  await fetch(tab1.linkedBrowser, "https://example.com/?2");

  Assert.equal(events.length, 1, "No new event was received");

  listener.startListening();

  await fetch(tab1.linkedBrowser, "https://example.com/?3");

  Assert.equal(events.length, 2, "A new event was received");

  assertNetworkEvent(events[1], contextId1, "https://example.com/?3");

  info("Check network event from the new tab");

  await fetch(tab2.linkedBrowser, "https://example.com/?4");

  Assert.equal(events.length, 3, "A new event was received");

  assertNetworkEvent(events[2], contextId2, "https://example.com/?4");

  gBrowser.removeTab(tab1);

  gBrowser.removeTab(tab2);

  listener.off("before-request-sent", onEvent);

  listener.destroy();

  navigationManager.destroy();

});

add_task(async function test_beforeRequestSent_newTab() {

  const navigationManager = new NavigationManager();

  navigationManager.startMonitoring();

  const listener = new NetworkListener(navigationManager);

  const onBeforeRequestSent = listener.once("before-request-sent");

  listener.startListening();

  info("Check network event related to loading a new tab");

  const tab = BrowserTestUtils.addTab(

    gBrowser,

    "https://example.com/document-builder.sjs?html=tab"

);

  await BrowserTestUtils.browserLoaded(tab.linkedBrowser);

  const contextId = TabManager.getIdForBrowser(tab.linkedBrowser);

  const event = await onBeforeRequestSent;

  assertNetworkEvent(

    event,

    contextId,

    "https://example.com/document-builder.sjs?html=tab"

);

  gBrowser.removeTab(tab);

  navigationManager.destroy();

});

add_task(async function test_fetchError() {

  const navigationManager = new NavigationManager();

  navigationManager.startMonitoring();

  const listener = new NetworkListener(navigationManager);

  const onFetchError = listener.once("fetch-error");

  listener.startListening();

  info("Check fetchError event when loading a new tab");

  const tab = BrowserTestUtils.addTab(gBrowser, "https://not_a_valid_url/");

  BrowserTestUtils.browserLoaded(tab.linkedBrowser);

  const contextId = TabManager.getIdForBrowser(tab.linkedBrowser);

  const event = await onFetchError;

  assertNetworkEvent(event, contextId, "https://not_a_valid_url/");

  is(event.request.errorText, "NS_ERROR_UNKNOWN_HOST");

  gBrowser.removeTab(tab);

  navigationManager.destroy();

});

function assertNetworkEvent(event, expectedContextId, expectedUrl) {

is(

    event.request.contextId,

    expectedContextId,

    "Event has the expected context id"

);

  is(event.request.serializedURL, expectedUrl, "Event has the expected url");