1 files changed, 31 insertions, 0 deletions
diff --git a/toolkit/components/thumbnails/test/thumbnails_crash_content_helper.js b/toolkit/components/thumbnails/test/thumbnails_crash_content_helper.js
new file mode 100644
index 000000000..935175f86
--- /dev/null
+++ b/toolkit/components/thumbnails/test/thumbnails_crash_content_helper.js
@@ -0,0 +1,31 @@
+/* Any copyright is dedicated to the Public Domain.
+* http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var Cu = Components.utils;
+
+// Ideally we would use CrashTestUtils.jsm, but that's only available for
+// xpcshell tests - so we just copy a ctypes crasher from it.
+Cu.import("resource://gre/modules/ctypes.jsm");
+var crash = function() { // this will crash when called.
+  let zero = new ctypes.intptr_t(8);
+  let badptr = ctypes.cast(zero, ctypes.PointerType(ctypes.int32_t));
+  badptr.contents
+};
+
+
+var TestHelper = {
+  init: function() {
+    addMessageListener("thumbnails-test:crash", this);
+  },
+
+  receiveMessage: function(msg) {
+    switch (msg.name) {
+      case "thumbnails-test:crash":
+        privateNoteIntentionalCrash();
+        crash();
+      break;
+    }
+  },
+}
+
+TestHelper.init();