function helloMyFilez2 () {
     var stack = stacktrace();
     stack[0].should.include('helloMyFilez2');
     stack[0].should.include('test.utils.stacktrace.js');
     stack[1].should.include('helloMyFilez1');
     stack[1].should.include('test.utils.stacktrace.js');
 }
 it('should return array', function () {
     var stack = stacktrace();
     stack.should.be.instanceOf(Array);
 });
 function helloMyFilez () {
     var stack = stacktrace();
     stack[0].should.include('helloMyFilez');
 }