| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <style> |
| .box { |
| position: relative; |
| width: 100px; |
| height: 100px; |
| background-color: blue; |
| transform: translate(0, 0); |
| transition-delay: -1s; |
| transition-duration: 3s; |
| transition-property: transform; |
| transition-timing-function: linear; |
| } |
| |
| .moved { |
| transform: translateX(300px); |
| } |
| </style> |
| </head> |
| <body> |
| <div id="container"> |
| <div id="box" class="box"></div> |
| </div> |
| <script> |
| 'use strict'; |
| async_test(t => { |
| box.offsetTop; // Force style recalc |
| setTimeout(t.step_func_done(() => { |
| box.className = 'moved box'; |
| assert_equals(getComputedStyle(box).transform, 'matrix(1, 0, 0, 1, 100, 0)'); |
| }), 0); |
| }, 'Box should start transition from style change on timer'); |
| </script> |
| </body> |
| </html> |
