browser_styleinspector_transform-highlighter-01.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test that the css transform highlighter is created only when asked and only one

// instance exists across the inspector

const TEST_URI = `

  <style type="text/css">

    body {

      transform: skew(16deg);

  </style>

  Test the css transform highlighter

`;

const TYPE = "CssTransformHighlighter";

add_task(async function () {

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

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

  let overlay = view.highlighters;

  ok(!overlay.highlighters[TYPE], "No highlighter exists in the rule-view");

  const h = await overlay._getHighlighter(TYPE);

ok(

    overlay.highlighters[TYPE],

    "The highlighter has been created in the rule-view"

);

  is(h, overlay.highlighters[TYPE], "The right highlighter has been created");

  const h2 = await overlay._getHighlighter(TYPE);

is(

h,

h2,

    "The same instance of highlighter is returned everytime in the rule-view"

);

  const onComputedViewReady = inspector.once("computed-view-refreshed");

  const cView = selectComputedView(inspector);

  await onComputedViewReady;

  overlay = cView.highlighters;

  ok(overlay.highlighters[TYPE], "The highlighter exists in the computed-view");

  const h3 = await overlay._getHighlighter(TYPE);

is(

h,

h3,

    "The same instance of highlighter is returned everytime " +

      "in the computed-view"

);

});