| <!doctype HTML> |
| |
| <div id="log"></div> |
| <iframe id="frame" srcdoc=' |
| <style> |
| #container { |
| contain: style layout; |
| width: 100px; |
| height: 100px; |
| background: lightblue; |
| } |
| </style> |
| <div id="container"></div> |
| '></iframe> |
| |
| <script> |
| // TODO(vmpstr): In WPT this needs to be replaced with reftest-wait. |
| if (window.testRunner) |
| window.testRunner.waitUntilDone(); |
| |
| function finishTest(status_string) { |
| if (document.getElementById("log").innerHTML === "") |
| document.getElementById("log").innerHTML = status_string; |
| if (window.testRunner) |
| window.testRunner.notifyDone(); |
| } |
| |
| function runTest() { |
| let container = document.getElementById("frame").contentDocument.getElementById("container"); |
| container.displayLock.acquire({ timeout: Infinity }).then( |
| () => { finishTest("PASS"); }, |
| (e) => { finishTest("FAIL " + e.message); }); |
| } |
| |
| window.onload = runTest; |
| </script> |
