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Bug 1451913 P7 Add an IDB event target leak test. r=smaug

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This commit is contained in:
Ben Kelly 2018-04-16 06:08:52 -07:00
parent 7a31079a0e
commit d53119ba20
2 changed files with 66 additions and 0 deletions
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2
dom/indexedDB/test/mochitest.ini
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@ -7,6 +7,7 @@ support-files =
bfcache_page1.html
bfcache_page2.html
blob_worker_crash_iframe.html
!/dom/events/test/event_leak_utils.js
error_events_abort_transactions_iframe.html
event_propagation_iframe.html
exceptions_in_events_iframe.html
@ -154,6 +155,7 @@ skip-if = e10s && os == 'win' && os_version == '6.1' # Bug 1342415
[test_deleteDatabase_onblocked.html]
[test_deleteDatabase_onblocked_duringVersionChange.html]
[test_error_events_abort_transactions.html]
[test_event_listener_leaks.html]
[test_event_propagation.html]
[test_event_source.html]
[test_exceptions_in_events.html]

64
dom/indexedDB/test/test_event_listener_leaks.html Normal file
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@ -0,0 +1,64 @@
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE HTML>
<html>
<head>
<title>Bug 1450358 - Test IDB event listener leak conditions</title>
<script type="text/javascript" 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">
/* global checkForEventListenerLeaks */
// Manipulate IDB objects in the frame's context.
// 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.
let count = 0;
async function useIDB(contentWindow) {
count += 1;
let db = await new Promise(resolve => {
let r = contentWindow.indexedDB.open("idb-leak-test-" + count, 1.0);
r.onupgradeneeded = evt => {
evt.target.result.createObjectStore("looped");
};
r.onsuccess = evt => {
resolve(evt.target.result);
};
});
let tx = db.transaction("looped", "readwrite");
let store = tx.objectStore("looped");
function spin() {
contentWindow.spinCount += 1;
store.get(0).onsuccess = spin;
}
store.put(0, "purgatory").onsuccess = e => {
contentWindow.putCount += 1;
spin();
};
}
async function runTest() {
try {
await checkForEventListenerLeaks("IDB", useIDB);
} catch (e) {
ok(false, e);
} finally {
SimpleTest.finish();
}
}
SimpleTest.waitForExplicitFinish();
addEventListener("load", runTest, { once: true });
</script>
</pre>
</body>
</html>