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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html')
-rw-r--r-- | testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html new file mode 100644 index 0000000000..1e58c43c86 --- /dev/null +++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-available.html @@ -0,0 +1,30 @@ +<!doctype html> +<title>The list of available images gets checked before deciding to make a load lazy</title> +<link rel="help" href="https://html.spec.whatwg.org/multipage/images.html#update-the-image-data"> +<link rel="help" href="https://html.spec.whatwg.org/multipage/images.html#will-lazy-load-image-steps"> +<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1709577"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<img src="/images/green-256x256.png"> +<div style="height:1000vh;"></div> +<script> +promise_test(async t => { + await new Promise(resolve => { + window.addEventListener("load", resolve); + }); + let nonLazy = document.querySelector("img"); + assert_equals(nonLazy.width, 256); + assert_equals(nonLazy.height, 256); + + let lazy = document.createElement("img"); + lazy.loading = "lazy"; + lazy.src = nonLazy.src; + document.body.appendChild(lazy); + + await new Promise(resolve => setTimeout(resolve)); + + assert_equals(lazy.width, 256, "The list of available images should be checked before delaying the image load"); + assert_equals(lazy.height, 256, "The list of available images should be checked before delaying the image load"); +}); +</script> |