all-prop-initial-xml.html (1890B)
1 <!doctype html> 2 <title>all: initial on unknown XML tree</title> 3 <link rel=help href=https://www.w3.org/TR/css-cascade-3/#all-shorthand> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <body> 7 <script> 8 const iframe = document.createElement("iframe"); 9 const setup_test = async_test("setup"); 10 iframe.onload = setup_test.step_func_done(function() { 11 const root = iframe.contentDocument.documentElement; 12 // we need the empty stylesheet to avoid default XSLT views of the XML 13 const style = iframe.contentDocument.createElementNS("http://www.w3.org/1999/xhtml", "style"); 14 root.appendChild(style); 15 16 // Grab initial styles from a random element, as the root can get non-initial UA styling. 17 const div = iframe.contentDocument.createElementNS("http://www.w3.org/1999/xhtml", "div"); 18 root.appendChild(div); 19 // the document element should have unicode-bidi 'normal', while <div> has 'isolate': 20 div.style.unicodeBidi = 'normal'; 21 const cs = iframe.contentWindow.getComputedStyle(div); 22 23 let actual_initial = Object.create(null); 24 for (let i = 0; i < cs.length; i++) { 25 let prop_name = cs[i]; 26 actual_initial[prop_name] = cs[prop_name]; 27 } 28 const rootCS = iframe.contentWindow.getComputedStyle(root); 29 test(() => { 30 style.textContent = ":root { color: blue }"; 31 assert_equals(rootCS["color"], "rgb(0, 0, 255)"); 32 }, "stylesheet takes effect"); 33 style.textContent = ":root { all: initial; direction: initial; unicode-bidi: initial; } style { display: none; }"; 34 for (let prop_name in actual_initial) { 35 test(() => { 36 assert_equals(rootCS[prop_name], actual_initial[prop_name]); 37 }, prop_name); 38 } 39 }); 40 iframe.src = URL.createObjectURL(new Blob(["<foo/>"], { type: "application/xml" })); 41 document.body.appendChild(iframe); 42 </script>