hello-person.spec.tsx

import { HelloPerson } from './hello-person.component';
import { shallow } from 'enzyme';

describe('Hello Person', () => {
  test('should render the name from the prop', () => {
    const props = {
      name: 'Jenia'
    };

    const wrapper = shallow<HelloPerson>(<HelloPerson {...props} />);
    const renderedName = wrapper.find('#name').text();
    expect(renderedName).toBe('Jenia');
  });
});