browser_rules_grid-highlighter-on-navigate.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test that grid highlighter is hidden on page navigation.

const TEST_URI = `

  <style type='text/css'>

    #grid {

      display: grid;

  </style>

  <div id="grid">

    <div id="cell1">cell1</div>

    <div id="cell2">cell2</div>

  </div>

`;

const TEST_URI_2 = "data:text/html,<html><body>test</body></html>";

add_task(async function () {

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

  const { inspector, view } = await openRuleView();

  const highlighters = inspector.highlighters;

  const HIGHLIGHTER_TYPE = inspector.highlighters.TYPES.GRID;

  const { waitForHighlighterTypeShown } = getHighlighterTestHelpers(inspector);

  await selectNode("#grid", inspector);

  const container = getRuleViewProperty(view, "#grid", "display").valueSpan;

  const gridToggle = container.querySelector(".js-toggle-grid-highlighter");

  info("Toggling ON the CSS grid highlighter from the rule-view.");

  const onHighlighterShown = waitForHighlighterTypeShown(HIGHLIGHTER_TYPE);

  gridToggle.click();

  await onHighlighterShown;

  is(highlighters.gridHighlighters.size, 1, "CSS grid highlighter is shown.");

  await navigateTo(TEST_URI_2);

  ok(!highlighters.gridHighlighters.size, "CSS grid highlighter is hidden.");

});