it('can access the correct scope via $parent', function () {
    const { assertText } = createFixture
      .html`<div with.bind='{a:2}'><div with.bind='{a:3}'><div with.bind='{a:4}'>\${(a => $parent.a)('5')}</div></div></div>`
      .component({ a: '1' })
      .build();