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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_mql_event_listener_leaks.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_mql_event_listener_leaks.html')
-rw-r--r-- | layout/style/test/test_mql_event_listener_leaks.html | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/layout/style/test/test_mql_event_listener_leaks.html b/layout/style/test/test_mql_event_listener_leaks.html new file mode 100644 index 0000000000..3ceb5412a2 --- /dev/null +++ b/layout/style/test/test_mql_event_listener_leaks.html @@ -0,0 +1,43 @@ +<!-- + Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ +--> +<!DOCTYPE HTML> +<html> +<head> + <title>Bug 1450271 - Test MediaQueryList event listener leak conditions</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="text/javascript" src="/tests/dom/events/test/event_leak_utils.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<script class="testbody" type="text/javascript"> +// Manipulate MediaQueryList. Its important here that we create a +// listener callback from the DOM objects back to the frame's global +// in order to exercise the leak condition. +async function useMediaQuery(contentWindow) { + contentWindow.messageCount = 0; + + let mql = contentWindow.matchMedia("(max-width: 600px)"); + mql.onchange = _ => { + contentWindow.mediaCount += 1; + }; +} + +async function runTest() { + try { + await checkForEventListenerLeaks("MediaQueryList", useMediaQuery); + } catch (e) { + ok(false, e); + } finally { + SimpleTest.finish(); + } +} + +SimpleTest.waitForExplicitFinish(); +addEventListener("load", runTest, { once: true }); +</script> +</pre> +</body> +</html> + |