test_styles-matched.html

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https://bugzilla.mozilla.org/show_bug.cgi?id=

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  <meta charset="utf-8">

  <title>Test for Bug </title>

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">

  <script type="application/javascript" src="inspector-helpers.js"></script>

  <script type="application/javascript">

"use strict";

const CssLogic = require("devtools/shared/inspector/css-logic");

window.onload = function() {

  SimpleTest.waitForExplicitFinish();

  runNextTest();

};

let gWalker = null;

let gStyles = null;

let gInspectee = null;

addTest(async function setup() {

  const url = document.getElementById("inspectorContent").href;

  const { commands, target, doc } = await attachURL(url);

  gInspectee = doc;

  // We need an active resource command before initializing the inspector front.

  const resourceCommand = commands.resourceCommand;

  // We listen to any random resource, we only need to trigger the resource command

  // onTargetAvailable callback so the `resourceCommand` attribute is set on the target front.

  await resourceCommand.watchResources([resourceCommand.TYPES.DOCUMENT_EVENT], { onAvailable: () => {} });

  const inspector = await target.getFront("inspector");

  gWalker = inspector.walker;

  gStyles = await inspector.getPageStyle();

  runNextTest();

});

addTest(function testMatchedStyles() {

  promiseDone(gWalker.querySelector(gWalker.rootNode, "#matched-test-node").then(node => {

    return gStyles.getMatchedSelectors(node, "font-size", {});

  }).then(matched => {

    is(matched[0].sourceText, "this.style", "First match comes from the element style");

    is(matched[0].selector, "@element.style", "Element style has a special selector");

    is(matched[0].value, "10px", "First match has the expected value");

    is(matched[0].status, CssLogic.STATUS.BEST, "First match is the best match");

    is(matched[0].rule.type, 100, "First match is an element style");

    is(matched[0].rule.href, gInspectee.defaultView.location.href,

       "Node style comes from this document");

    is(matched[1].sourceText, ".column-rule",

      "Second match comes from a rule");

    is(matched[1].selector, ".column-rule",

      "Second match comes from highest line number");

    is(matched[1].value, "25px", "Second match comes from highest column");

    is(matched[1].status, CssLogic.STATUS.PARENT_MATCH,

      "Second match is from the parent");

    is(matched[1].rule.parentStyleSheet.href, null,

      "Inline stylesheet shouldn't have an href");

    is(matched[1].rule.parentStyleSheet.nodeHref, gInspectee.defaultView.location.href,

      "Inline stylesheet's nodeHref should match the current document");

    ok(!matched[1].rule.parentStyleSheet.system,

      "Inline stylesheet shouldn't be a system stylesheet.");

    // matched[2] is only there to test matched[1]; do not need to test

    is(matched[3].value, "15px", "Third match has the expected value");

  }).then(runNextTest));

});

addTest(function testSystemStyles() {

  let testNode = null;

  promiseDone(gWalker.querySelector(gWalker.rootNode, "#matched-test-node").then(node => {

    testNode = node;

    return gStyles.getMatchedSelectors(testNode, "display", { filter: "user" });

  }).then(matched => {

    is(matched.length, 0, "No user selectors apply to this rule.");

    return gStyles.getMatchedSelectors(testNode, "display", { filter: "ua" });

  }).then(matched => {

    is(matched[0].selector, "div", "Should match system div selector");

    is(matched[0].value, "block");

  }).then(runNextTest));

});

addTest(function cleanup() {

  gStyles = null;

  gWalker = null;

  gInspectee = null;

  runNextTest();

});

  </script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a>

<a id="inspectorContent" target="_blank" href="inspector-styles-data.html">Test Document</a>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

</pre>

</body>

</html>