| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>CSS Selectors Invalidation: insert adjacent sibling of parent</title> |
| <link rel="help" href="https://drafts.csswg.org/selectors-4/#adjacent-sibling-combinators"> |
| <meta name="assert" content="This tests that the + next-sibling selector is effective"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| .d { background-color: blue; } |
| |
| .a + .c > .d { background-color: green; } |
| </style> |
| </head> |
| <body> |
| <div> |
| <div id="first" class="a"></div> |
| <div class="c"> |
| <div id="target" class="d"></div> |
| </div> |
| </div> |
| <script> |
| 'use strict'; |
| const green = 'rgb(0, 128, 0)'; |
| const blue = 'rgb(0, 0, 255)'; |
| |
| test(function() { |
| const first = document.getElementById('first'); |
| const target = document.getElementById('target'); |
| const parent = first.parentElement; |
| assert_equals(getComputedStyle(target).backgroundColor, green, "initial color"); |
| |
| parent.removeChild(first); |
| assert_equals(getComputedStyle(target).backgroundColor, blue, "color after removal"); |
| |
| parent.insertBefore(first, parent.firstChild); |
| assert_equals(getComputedStyle(target).backgroundColor, green, "color after insert") |
| }, "Remove/Insert adjacent sibling of parent"); |
| </script> |
| </body> |
| </html> |
