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Diffstat (limited to 'testing/web-platform/tests/html/semantics/embedded-content/the-img-element/decode/image-decode-with-quick-attach.html')
| -rw-r--r-- | testing/web-platform/tests/html/semantics/embedded-content/the-img-element/decode/image-decode-with-quick-attach.html | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/decode/image-decode-with-quick-attach.html b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/decode/image-decode-with-quick-attach.html new file mode 100644 index 0000000000..be680da619 --- /dev/null +++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/decode/image-decode-with-quick-attach.html @@ -0,0 +1,26 @@ +<!DOCTYPE html> +<meta charset=utf-8> +<meta name="timeout" content="long"> +<title>HTMLImageElement.prototype.decode(), attach to DOM before promise resolves.</title> +<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> +<link rel=help href="https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<body></body> + +<script> +"use strict"; + +promise_test(function() { + const img = new Image(); + img.src = "/images/green.png"; + const promise = img.decode().then(function(arg) { + assert_equals(arg, undefined); + }); + // Don't wait for the promise to resolve before attaching the image. + // The promise should still resolve successfully. + document.body.appendChild(img); + return promise; +}, document.title); +</script> |