diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/resource-timing/image-sequence-of-events.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/resource-timing/image-sequence-of-events.html')
| -rw-r--r-- | testing/web-platform/tests/resource-timing/image-sequence-of-events.html | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/testing/web-platform/tests/resource-timing/image-sequence-of-events.html b/testing/web-platform/tests/resource-timing/image-sequence-of-events.html new file mode 100644 index 0000000000..630fed78c9 --- /dev/null +++ b/testing/web-platform/tests/resource-timing/image-sequence-of-events.html @@ -0,0 +1,29 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Test the sequence of events when reporting image timing.</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<body> +<script> + function test_image_sequence(src, event, t) { + const image = document.createElement('img'); + const absoluteURL = new URL(src, location.href).toString(); + document.body.appendChild(image); + t.add_cleanup(() => image.remove()); + return new Promise(resolve => { + image.addEventListener(event, t.step_func(() => { + assert_equals(performance.getEntriesByName(absoluteURL).length, 1); + resolve(); + })); + image.src = src; + }); + } + promise_test(t => test_image_sequence('resources/blue.png', 'load', t), + "An image should receive its load event after the ResourceTiming entry is available"); + + promise_test(t => test_image_sequence('resources/nothing-at-all.png', 'error', t), + "A non-existent (404) image should receive its error event after the ResourceTiming entry is available"); + + promise_test(t => test_image_sequence('resources/invalid.png', 'error', t), + "An invalid image should receive its error event after the ResourceTiming entry is available"); +</script> |