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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/plugins/test/mochitest/test_GCrace.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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-rw-r--r--dom/plugins/test/mochitest/test_GCrace.html62
1 files changed, 62 insertions, 0 deletions
diff --git a/dom/plugins/test/mochitest/test_GCrace.html b/dom/plugins/test/mochitest/test_GCrace.html
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+++ b/dom/plugins/test/mochitest/test_GCrace.html
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+<head>
+ <title>GC race with actors on the parent</title>
+
+ <script type="text/javascript"
+ src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="plugin-utils.js"></script>
+ <link rel="stylesheet" type="text/css"
+ href="/tests/SimpleTest/test.css" />
+<body onload="start()">
+ <p id="display"></p>
+
+ <script class="testbody" type="application/javascript">
+ SimpleTest.waitForExplicitFinish();
+ SimpleTest.requestFlakyTimeout("untriaged");
+ setTestPluginEnabledState(SpecialPowers.Ci.nsIPluginTag.STATE_ENABLED);
+
+ function start() {
+ setTimeout(checkGCRace, 1000);
+ }
+
+ var nested = false;
+
+ function cb(f) {
+ ok(!nested, "Callback shouldn't occur in a nested stack frame");
+ try {
+ f(35);
+ ok(true, "Callback was called, no crash");
+ }
+ catch (e) {
+ ok(false, "Exception calling callback object: " + e);
+ }
+ SimpleTest.executeSoon(removePlugin);
+ }
+
+ function removePlugin() {
+ var p = document.getElementById('p');
+ p.parentNode.removeChild(p);
+ p = null;
+ SpecialPowers.Cu.forceGC();
+ SimpleTest.finish();
+ }
+
+ function checkGCRace() {
+ nested = true;
+
+ // The plugin will hand back a function and immediately sleep.
+ // We will lose our only reference to the function and force GC, followed
+ // by calling us with that function object again. We should be able to
+ // call the function and not crash.
+ var p = document.getElementById('p');
+ var f = p.checkGCRace(cb);
+ f = null; // 'f' should be collected next GC
+
+ nested = false;
+
+ setTimeout(function() {
+ SpecialPowers.Cu.forceGC();
+ }, 2000);
+ }
+ </script>
+
+ <embed id="p" type="application/x-test" wmode="window"></embed>