browser_net_ws-limit-frames.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

/**

 * Test that WS connection is established successfully and the truncated message notification displays correctly.

*/

add_task(async function () {

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

  await pushPref("devtools.netmonitor.msg.displayed-messages.limit", 30);

  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(20);

});

  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 wait = 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 wait;

  // Get all messages present in the "Response" panel

  const frames = document.querySelectorAll(

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

);

  // Check expected results

  is(frames.length, 30, "There should be thirty frames");

is(

    document.querySelectorAll("#messages-view .truncated-message").length,

1,

    "Truncated message notification is shown"

);

  // Close WS connection

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

    await content.wrappedJSObject.closeConnection();

});

  await teardown(monitor);

});