test_bug960820.html (2232B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=960820 5 --> 6 <head> 7 <meta charset="utf-8"> 8 <title>Test for Bug 960820</title> 9 <script src="/tests/SimpleTest/SimpleTest.js"></script> 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> 11 <script type="application/javascript"> 12 13 /** Test for exception stacks crossing **/ 14 15 // Synchronous event dispatch creates a new script entry point. At the time 16 // of this writing, an event listener defined in a Sandbox will cause the 17 // SafeJSContext to be pushed to the cx stack, which differs from the JSContext 18 // associated with this DOM window. So we test both kinds of boundaries. 19 var sb = new SpecialPowers.Cu.Sandbox(SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal()); 20 sb.win = window; 21 SpecialPowers.Cu.evalInSandbox("win.document.addEventListener('click', " + 22 "function clickHandler() { win.wrappedJSObject.clickCallback(); });", sb); 23 function clickCallback() { 24 var stack = (new Error()).stack; 25 ok(true, "Invoked clickCallback. Stack: " + stack); 26 ok(/clickCallback/.test(stack), "clickCallback should be in the stack"); 27 ok(!/clickHandler/.test(stack), "clickHandler should not be in the stack"); 28 ok(/dispatchClick/.test(stack), "dispatchClick should be in the stack"); 29 30 // Check Components.stack, but first filter through the SpecialPowers junk. 31 var stack = SpecialPowers.wrap(SpecialPowers.Components).stack; 32 while (/testing-common/.test(stack)) { 33 stack = stack.caller; 34 } 35 ok(/clickCallback/.test(stack), "clickCallback should be reachable via Components.stack"); 36 ok(/clickHandler/.test(stack.caller), "clickHandler should be reachable via Components.stack"); 37 ok(/dispatchClick/.test(stack.caller.caller), "dispatchClick hould be reachable via Components.stack"); 38 } 39 function dispatchClick() { 40 document.dispatchEvent(new MouseEvent('click')); 41 } 42 dispatchClick(); 43 44 45 </script> 46 </head> 47 <body> 48 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=960820">Mozilla Bug 960820</a> 49 <p id="display"></p> 50 <div id="content" style="display: none"> 51 52 </div> 53 <pre id="test"> 54 </pre> 55 </body> 56 </html>