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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/css/cssom/HTMLLinkElement-load-event.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/css/cssom/HTMLLinkElement-load-event.html')
| -rw-r--r-- | testing/web-platform/tests/css/cssom/HTMLLinkElement-load-event.html | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/cssom/HTMLLinkElement-load-event.html b/testing/web-platform/tests/css/cssom/HTMLLinkElement-load-event.html new file mode 100644 index 0000000000..7062f15450 --- /dev/null +++ b/testing/web-platform/tests/css/cssom/HTMLLinkElement-load-event.html @@ -0,0 +1,32 @@ +<!doctype html> +<meta charset="utf-8"> +<title>Link element load event doesn't block the parser.</title> +<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> +<link rel="author" title="Mozilla" href="https://mozilla.org"> +<link rel="help" href="https://html.spec.whatwg.org/#link-type-stylesheet"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> + let NUM_LOADS = 0; +</script> +<link rel="stylesheet" href="data:text/css,*{}" onload="++NUM_LOADS"> +<script> +let t = async_test(document.title); +window.addEventListener("load", t.step_func_done(() => { + assert_equals(NUM_LOADS, 2, "Load event should've fired for all links"); +})); +t.step(function() { + assert_equals(document.styleSheets.length, 1, "Should expose the sheet to the OM before running script"); + // We can't quite assert that NUM_LOADS is zero (even though it almost-always + // should be the case), in case the parser yields just before executing the + // script but after parsing the link load. + let loadsBefore = NUM_LOADS; + // Intentionally the same href as above, to test caching behavior. + document.write(` + <link rel="stylesheet" href="data:text/css,*{}" onload="++NUM_LOADS"> + `); + assert_equals(document.styleSheets.length, 2, "Should expose both sheets to the OM before running second script"); + assert_equals(NUM_LOADS, loadsBefore, "Shouldn't fire the load event sync"); + assert_not_equals(document.styleSheets[0], document.styleSheets[1], "Should be different sheets"); +}); +</script> |