Check for active class on element, unit testing

Im writing this test for a tabs component but seems does not working, is there an alternative to replace find()?

it('should set active class on tab', function() {
    var contents = element.find('ul.nav-pills li.tab-overview');
    expect(contents.eq(0)).toHaveClass('active');
    expect(contents.eq(1)).not.toHaveClass('active');
});