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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/style/test/test_img_src_causing_reflow.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 'layout/style/test/test_img_src_causing_reflow.html')
-rw-r--r-- | layout/style/test/test_img_src_causing_reflow.html | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/layout/style/test/test_img_src_causing_reflow.html b/layout/style/test/test_img_src_causing_reflow.html new file mode 100644 index 0000000000..e63b39f9fe --- /dev/null +++ b/layout/style/test/test_img_src_causing_reflow.html @@ -0,0 +1,36 @@ +<!doctype html> +<meta charset="utf-8"> +<title>Test for bug 1787072</title> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<style> +img { + width: 100px; + height: 100px; + background-color: blue; +} +</style> +<img> <!-- Initially broken --> +<script> +add_task(async function() { + const utils = SpecialPowers.DOMWindowUtils; + const img = document.querySelector("img"); + img.getBoundingClientRect(); + + let origFramesConstructed = utils.framesConstructed; + let origFramesReflowed = utils.framesReflowed; + + let error = new Promise(r => img.addEventListener("error", r, { once: true })); + + // Doesn't need to be an actual image. + img.src = "/some-valid-url"; + + img.getBoundingClientRect(); + is(origFramesReflowed, utils.framesReflowed, "Shouldn't have reflowed when going broken -> loading"); + is(origFramesConstructed, utils.framesConstructed, "Shouldn't have reflowed when going broken -> loading"); + + await error; + + is(origFramesReflowed, utils.framesReflowed, "Shouldn't have reflowed when going loading -> broken"); + is(origFramesConstructed, utils.framesConstructed, "Shouldn't have reflowed when going loading -> broken"); +}); +</script> |