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| -rw-r--r-- | js/xpconnect/tests/mochitest/test_bug960820.html | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/js/xpconnect/tests/mochitest/test_bug960820.html b/js/xpconnect/tests/mochitest/test_bug960820.html new file mode 100644 index 0000000000..7667fde624 --- /dev/null +++ b/js/xpconnect/tests/mochitest/test_bug960820.html @@ -0,0 +1,56 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=960820 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 960820</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> + <script type="application/javascript"> + + /** Test for exception stacks crossing **/ + + // Synchronous event dispatch creates a new script entry point. At the time + // of this writing, an event listener defined in a Sandbox will cause the + // SafeJSContext to be pushed to the cx stack, which differs from the JSContext + // associated with this DOM window. So we test both kinds of boundaries. + var sb = new SpecialPowers.Cu.Sandbox(SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal()); + sb.win = window; + SpecialPowers.Cu.evalInSandbox("win.document.addEventListener('click', " + + "function clickHandler() { win.wrappedJSObject.clickCallback(); });", sb); + function clickCallback() { + var stack = (new Error()).stack; + ok(true, "Invoked clickCallback. Stack: " + stack); + ok(/clickCallback/.test(stack), "clickCallback should be in the stack"); + ok(!/clickHandler/.test(stack), "clickHandler should not be in the stack"); + ok(/dispatchClick/.test(stack), "dispatchClick should be in the stack"); + + // Check Components.stack, but first filter through the SpecialPowers junk. + var stack = SpecialPowers.wrap(SpecialPowers.Components).stack; + while (/testing-common/.test(stack)) { + stack = stack.caller; + } + ok(/clickCallback/.test(stack), "clickCallback should be reachable via Components.stack"); + ok(/clickHandler/.test(stack.caller), "clickHandler should be reachable via Components.stack"); + ok(/dispatchClick/.test(stack.caller.caller), "dispatchClick hould be reachable via Components.stack"); + } + function dispatchClick() { + document.dispatchEvent(new MouseEvent('click')); + } + dispatchClick(); + + + </script> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=960820">Mozilla Bug 960820</a> +<p id="display"></p> +<div id="content" style="display: none"> + +</div> +<pre id="test"> +</pre> +</body> +</html> |