import React from 'react'; import { render, screen } from '@testing-library/react'; import { AddRemove } from './AddRemove'; const noop = () => {}; const TestComponent = ({ items }: { items: any[] }) => ( <> {items.map((_, index) => ( <AddRemove key={index} elements={items} index={index} onAdd={noop} onRemove={noop} /> ))} </> ); describe('AddRemove Button', () => { describe("When There's only one element in the list", () => { it('Should only show the add button', () => { render(<TestComponent items={['something']} />); expect(screen.getByText('add')).toBeInTheDocument(); expect(screen.queryByText('remove')).not.toBeInTheDocument(); }); }); describe("When There's more than one element in the list", () => { it('Should show the remove button on every element', () => { const items = ['something', 'something else']; render(<TestComponent items={items} />); expect(screen.getAllByText('remove')).toHaveLength(items.length); }); it('Should show the add button only once', () => { const items = ['something', 'something else']; render(<TestComponent items={items} />); expect(screen.getAllByText('add')).toHaveLength(1); }); }); });