message: tests(Tappable): add test for disabled tabindex
diff: @@ -49,6 +49,11 @@ describe('Tappable', () => {
  expect(tappable()).toHaveAttribute('tabIndex', '0');
  });
  + it('a11y(tabindex): custom disabled button has no tabindex', () => {
  + render(<TappableTest disabled>Custom Disabled Button</TappableTest>);
  + expect(tappable()).not.toHaveAttribute('tabIndex');
  + });
  +
  it('a11y(tabindex): custom link has tabindex={0}', () => {
  render(<TappableTest role="link">Custom Link</TappableTest>);
  expect(tappable()).toHaveAttribute('tabIndex', '0');
  