LayoutTests/fast/js/resources/caller-property.js

description(
'This tests for caller property in functions. Only functions that are called from inside of other functions and have a parent should have this property set. Tests return true when caller is found and false when the caller is null.'
)       
function child()
{
    return (child.caller !== null);
}

function parent()
{
    return child();
}

var childHasCallerWhenExecutingGlobalCode = (child.caller !== null);
var childHasCallerWhenCalledWithoutParent = child();
var childHasCallerWhenCalledFromWithinParent = parent();

shouldBe('childHasCallerWhenExecutingGlobalCode', 'false');
shouldBe('childHasCallerWhenCalledWithoutParent', 'false');
shouldBe('childHasCallerWhenCalledFromWithinParent', 'true')

var successfullyParsed = true;