devtools/server/tests/chrome/test_css-logic.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug </title>
   9
  10   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  11   <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
  12   <script type="application/javascript" src="inspector-helpers.js"></script>
  13   <script type="application/javascript">
  14 "use strict";
  15
  16 const {CssLogic} = require("devtools/server/actors/inspector/css-logic");
  17
  18 window.onload = function() {
  19   SimpleTest.waitForExplicitFinish();
  20   runNextTest();
  21 };
  22
  23 addTest(function getComputedStyle() {
  24   const node = document.querySelector("#computed-style");
  25   is(CssLogic.getComputedStyle(node).getPropertyValue("width"),
  26       "50px", "Computed style on a normal node works (width)");
  27   is(CssLogic.getComputedStyle(node).getPropertyValue("height"),
  28       "10px", "Computed style on a normal node works (height)");
  29
  30   const firstChild = new _documentWalker(node, window).firstChild();
  31   is(CssLogic.getComputedStyle(firstChild).getPropertyValue("content"),
  32      "\"before\"", "Computed style on a ::before node works (content)");
  33   const lastChild = new _documentWalker(node, window).lastChild();
  34   is(CssLogic.getComputedStyle(lastChild).getPropertyValue("content"),
  35      "\"after\"", "Computed style on a ::after node works (content)");
  36
  37   runNextTest();
  38 });
  39
  40 addTest(function getBindingElementAndPseudo() {
  41   const node = document.querySelector("#computed-style");
  42   let {bindingElement, pseudo} = CssLogic.getBindingElementAndPseudo(node);
  43
  44   is(bindingElement, node,
  45      "Binding element is the node itself for a normal node");
  46   ok(!pseudo, "Pseudo is null for a normal node");
  47
  48   const firstChild = new _documentWalker(node, window).firstChild();
  49   ({ bindingElement, pseudo } = CssLogic.getBindingElementAndPseudo(firstChild));
  50   is(bindingElement, node,
  51      "Binding element is the parent for a pseudo node");
  52   is(pseudo, "::before", "Pseudo is correct for a ::before node");
  53
  54   const lastChild = new _documentWalker(node, window).lastChild();
  55   ({ bindingElement, pseudo } = CssLogic.getBindingElementAndPseudo(lastChild));
  56   is(bindingElement, node,
  57      "Binding element is the parent for a pseudo node");
  58   is(pseudo, "::after", "Pseudo is correct for a ::after node");
  59
  60   runNextTest();
  61 });
  62
  63   </script>
  64 </head>
  65 <body>
  66   <style type="text/css">
  67     #computed-style { width: 50px; height: 10px; }
  68     #computed-style::before { content: "before"; }
  69     #computed-style::after { content: "after"; }
  70   </style>
  71   <div id="computed-style"></div>
  72 </body>
  73 </html>