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<!DOCTYPE html>
<meta charset=utf-8>
<title>Test for 814497</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<div id="log"></div>
<script>
var c = Components.classes;
var Ci = Components.interfaces;
var Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
SimpleTest.waitForExplicitFinish();
SimpleTest.expectUncaughtException();
// /!\ Line number is important in this test,
// we are asserting the following functions line #
function failingStack() {
nestedFunction();
}
function nestedFunction() {
doesntExistsAndThrow();
}
var TestObserver = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
observe: function test_observe(aSubject)
{
if (!(aSubject instanceof Ci.nsIScriptError)) {
return;
}
dump("stack: "+aSubject.stack+"\n");
// Main assertions
var s = aSubject.stack;
ok(!!s, "has first frame");
ok(s.source.indexOf("test_nsScriptErrorWithStack.html") !== -1, "source is correct");
is(s.line, 23, "line is correct");
is(s.column, 5, "column is correct");
is(s.functionDisplayName, "nestedFunction");
s = s.parent;
ok(!!s, "has second frame");
ok(s.source.indexOf("test_nsScriptErrorWithStack.html") !== -1, "source is correct");
is(s.line, 20, "line is correct");
is(s.column, 5, "column is correct");
is(s.functionDisplayName, "failingStack");
// We shouldn't have any more frame as we used setTimeout
ok(!s.parent, "has no more frames");
// Cleanup
Services.console.unregisterListener(TestObserver);
SimpleTest.finish();
}
};
Services.console.registerListener(TestObserver);
// use setTimeout in order to prevent throwing from test frame
// and so have a clean stack frame with just our method calls
setTimeout(failingStack, 0);
</script>
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