it('should render a div.select with select, modifiers and custom classNames', () => {
    const component = shallow(<SelectInput disabled isLoading className="custom" />);
    expect(component.hasClass('boldrui-form__select')).toBe(true);
    expect(component.hasClass('is-disabled')).toBe(true);
    expect(component.hasClass('is-loading')).toBe(true);