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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"
  );
});