browser_net_ws-keep-future-frames.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

add_task(async function () {

  // Set WS messages limit to a lower value for testing

  await pushPref("devtools.netmonitor.msg.displayed-messages.limit", 10);

  const { tab, monitor } = await initNetMonitor(WS_PAGE_URL, {

    requestCount: 1,

});

  info("Starting test... ");

  const { document, store, windowRequire } = monitor.panelWin;

  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");

  store.dispatch(Actions.batchEnable(false));

  // Wait for WS connections to be established + send messages

  const onNetworkEvents = waitForNetworkEvents(monitor, 1);

  await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {

    await content.wrappedJSObject.openConnection(10);

});

  await onNetworkEvents;

  const requests = document.querySelectorAll(".request-list-item");

  is(requests.length, 1, "There should be one request");

  // Wait for truncated message notification to appear

  const truncatedMessageWait = waitForDOM(

    document,

    "#messages-view .truncated-message"

);

  // Select the first request

  EventUtils.sendMouseEvent({ type: "mousedown" }, requests[0]);

  // Click on the "Response" panel

  clickOnSidebarTab(document, "response");

  await truncatedMessageWait;

  // Wait for truncated message notification to appear and to have an expected text

  await waitFor(() =>

    document

      .querySelector("#messages-view .truncated-message")

      .textContent.includes("10 messages")

);

  // Set on 'Keep all future messages' checkbox

  const truncationCheckbox = document.querySelector(

    "#messages-view .truncation-checkbox"

);

  truncationCheckbox.click();

  // Get rid of all current messages

  const clearButton = document.querySelector(

    "#messages-view .message-list-clear-button"

);

  clearButton.click();

  // And request new messages

  await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {

    await content.wrappedJSObject.sendFrames(10);

});

  // Wait while they appear in the Response tab

  // We should see all requested messages (sometimes more than 20 = 10 sent + 10 received)

  await waitForDOM(

    document,

    "#messages-view .message-list-table .message-list-item",

);

  const truncatedMessage = document.querySelector(

    "#messages-view .truncated-message"

  ).textContent;

  is(truncatedMessage, "0 messages have been truncated to conserve memory");

  // Close WS connection

  await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {

    await content.wrappedJSObject.closeConnection();

});

  await teardown(monitor);

});