| <!doctype html> |
| <title>all: initial on unknown XML tree</title> |
| <link rel=help href=https://www.w3.org/TR/css-cascade-3/#all-shorthand> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| const iframe = document.createElement("iframe"); |
| const setup_test = async_test("setup"); |
| iframe.onload = setup_test.step_func_done(function() { |
| const root = iframe.contentDocument.documentElement; |
| // we need the empty stylesheet to avoid default XSLT views of the XML |
| const style = iframe.contentDocument.createElementNS("http://www.w3.org/1999/xhtml", "style"); |
| root.appendChild(style); |
| const cs = iframe.contentWindow.getComputedStyle(root); |
| let actual_initial = Object.create(null); |
| for (let i = 0; i < cs.length; i++) { |
| let prop_name = cs[i]; |
| actual_initial[prop_name] = cs[prop_name]; |
| } |
| test(() => { |
| style.textContent = ":root { color: blue }"; |
| assert_equals(cs["color"], "rgb(0, 0, 255)"); |
| }, "stylesheet takes effect"); |
| style.textContent = ":root { all: initial; direction: initial; unicode-bidi: initial; } style { display: none; }"; |
| for (let prop_name in actual_initial) { |
| test(() => { |
| assert_equals(cs[prop_name], actual_initial[prop_name]); |
| }, prop_name); |
| } |
| }); |
| iframe.src = URL.createObjectURL(new Blob(["<foo/>"], { type: "application/xml" })); |
| document.body.appendChild(iframe); |
| </script> |
