browser_rules_selector-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 the selector highlighter is hidden on page navigation.

const TEST_URI = `

  <style type="text/css">

    body, p, td {

      background: red;

  </style>

  Test the selector highlighter

`;

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();

  info("Clicking on a selector icon");

  const { highlighter, isShown } = await clickSelectorIcon(view, "body, p, td");

  ok(highlighter, "The selector highlighter instance was created");

  ok(isShown, "The selector highlighter was shown");

  await navigateTo(TEST_URI_2);

  const activeHighlighter = inspector.highlighters.getActiveHighlighter(

    inspector.highlighters.TYPES.SELECTOR

);

  ok(!activeHighlighter, "No selector highlighter is active");

});