highlight-pseudos-computed.html (2021B)
1 <!doctype html> 2 <meta charset="utf-8"> 3 <title>CSS Pseudo-Elements Test: highlight selectors getComputedStyle</title> 4 <link rel="help" href="https://drafts.csswg.org/css-pseudo/#highlight-selectors"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <style> 8 #target::selection { 9 background-color: green; 10 color: lime; 11 } 12 #target::target-text { 13 background-color: green; 14 color: lime; 15 } 16 #target::spelling-error { 17 background-color: green; 18 color: lime; 19 } 20 #target::grammar-error { 21 background-color: green; 22 color: lime; 23 } 24 #target::highlight(foo) { 25 background-color: green; 26 color: lime; 27 } 28 #target::highlight(bar) { 29 background-color: blue; 30 color: yellow; 31 } 32 </style> 33 <div id="target"></div> 34 <script> 35 for (const pseudo of ["::selection", "::target-text", "::spelling-error", "::grammar-error", "::highlight(foo)"]) { 36 test(() => { 37 let style = getComputedStyle(target, pseudo); 38 assert_equals(style.backgroundColor, "rgb(0, 128, 0)", "Background color is green."); 39 assert_equals(style.color, "rgb(0, 255, 0)", "Color is lime."); 40 }, `getComputedStyle() for ${pseudo}`); 41 42 for (illFormedPseudo of [`${pseudo}:`, `${pseudo})`, `${pseudo}(`, `${pseudo}(foo)`, `${pseudo}()`, `:${pseudo}`, `${pseudo}.`]) { 43 test(() => { 44 let style = getComputedStyle(target, illFormedPseudo); 45 let defaultStyle = getComputedStyle(target); 46 assert_equals(style.backgroundColor, ""); 47 assert_equals(style.color, ""); 48 }, `getComputedStyle() for ${illFormedPseudo} should return an empty CSSStyleDeclaration`); 49 } 50 } 51 52 const pseudo = "::highlight(bar)"; 53 test(() => { 54 let style = getComputedStyle(target, pseudo); 55 assert_equals(style.backgroundColor, "rgb(0, 0, 255)", "Background color is blue."); 56 assert_equals(style.color, "rgb(255, 255, 0)", "Color is yellow."); 57 }, `Different getComputedStyle() for ${pseudo} and same element`); 58 </script>