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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/crashtests/598862.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/dom/plugins/test/crashtests/598862.html b/dom/plugins/test/crashtests/598862.html
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+<!DOCTYPE HTML>
+<html class="reftest-wait">
+ <head>
+ <script>
+var unusedScreenX;
+function XSync() {
+ unusedScreenX = window.screenX;
+}
+
+function finish() {
+ document.documentElement.removeAttribute("class");
+}
+
+function cleanup() {
+ try {
+ document.getElementById("plugin").crash();
+ } catch (dontcare) {
+ }
+ window.setTimeout(finish, 100);
+}
+
+function scrollOfDeath() {
+ // Add a listener for the MozAfterPaint after the scrollTo below.
+ // If we don't crash during the scroll, we'll get the
+ // MozAfterPaint.
+ window.addEventListener("MozAfterPaint", cleanup, false);
+ window.scrollTo(0, 50);
+}
+
+//
+// The sequence of events we expect is
+//
+// load (including initial paints of plugin that are cached)
+// destroy X resources
+// [X server has time to observe resource destruction]
+// scrollTo
+// [repaint using cached plugin surface: BOOM if buggy]
+// MozAfterPaint
+// cleanup
+//
+// However, this test is fundamentally nondeterministic. There are
+// two main "failure" modes
+// (1) X server doesn't have time to observer resource destruction
+// before paint-after-scroll
+// (2) plugin's crash notification arrives before
+// paint-after-scroll
+// Both result in spurious passes.
+//
+// This test is anal about cleanup because it must be pretty sure that
+// the plugin subprocess is gone before starting the next test. We
+// double-check that the plugin is gone by the time we're done by
+// trying to crash it again, after we expect it to have crashed already.
+//
+function runTest() {
+ // Have the plugin throw away its X resources, one of which is
+ // probably a drawable to which we hold a reference
+ document.getElementById("plugin").destroySharedGfxStuff();
+
+ // Do something that's (hopefully) equivalent to an XSync() to allow
+ // the resource destruction to propagate to the server
+ XSync();
+
+ // Set up a scroll to happen soon
+ window.setTimeout(scrollOfDeath, 100);
+}
+
+window.addEventListener("MozReftestInvalidate", runTest, false);
+ </script>
+ </head>
+
+ <body style="width: 400px; height: 10000px;">
+ <embed id="plugin" type="application/x-test"
+ style="position:absolute;
+ top:100px; left:50px; width:200px; height:200px;">
+ </embed>
+ </body>
+</html>