browser_grids_grid-outline-updates-on-grid-change.js

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This test gets skipped with pattern: os == 'linux' && os_version == '18.04' && processor == 'x86_64' OR os == 'mac' && os_version == '10.15' && processor == 'x86_64' OR os == 'win' && debug OR os == 'win' && asan
Manifest: devtools/client/inspector/grids/test/browser.toml

/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Tests that the grid outline does reflect the grid in the page even after the grid has

// changed.

const TEST_URI = `

  <style>

  .container {

    display: grid;

    grid-template-columns: repeat(2, 20vw);

    grid-auto-rows: 20px;

  </style>

  <div class="container">

    <div>item 1</div>

    <div>item 2</div>

  </div>

`;

add_task(async function () {

  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));

  const { inspector, gridInspector } = await openLayoutView();

  const { document: doc } = gridInspector;

  const { highlighters, store } = inspector;

  info("Clicking on the first checkbox to highlight the grid");

  const checkbox = doc.querySelector("#grid-list input");

  const onHighlighterShown = highlighters.once("grid-highlighter-shown");

  const onCheckboxChange = waitUntilState(

    store,

    state => state.grids.length == 1 && state.grids[0].highlighted

);

  const onGridOutlineRendered = waitForDOM(doc, ".grid-outline-cell", 2);

  checkbox.click();

  await onHighlighterShown;

  await onCheckboxChange;

  let elements = await onGridOutlineRendered;

  info("Checking the grid outline is shown.");

  is(elements.length, 2, "Grid outline is shown.");

  info("Changing the grid in the page");

  const onReflow = inspector.once("reflow-in-selected-target");

  const onGridOutlineChanged = waitForDOM(doc, ".grid-outline-cell", 4);

  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], () => {

    const div = content.document.createElement("div");

    div.textContent = "item 3";

    content.document.querySelector(".container").appendChild(div);

});

  await onReflow;

  elements = await onGridOutlineChanged;

  info("Checking the grid outline is correct.");

  is(elements.length, 4, "Grid outline was changed.");

});