import { render, screen } from '@testing-library/react';
import { describe, it, expect } from 'vitest';
import { EmptyState } from '../empty-state';

describe('EmptyState', () => {
  it('renders title', () => {
    render(<EmptyState title="Không có dữ liệu" />);
    expect(screen.getByText('Không có dữ liệu')).toBeInTheDocument();
  });

  it('renders description when provided', () => {
    render(<EmptyState title="Empty" description="Hãy thêm dữ liệu mới" />);
    expect(screen.getByText('Hãy thêm dữ liệu mới')).toBeInTheDocument();
  });

  it('does not render description when not provided', () => {
    render(<EmptyState title="Empty" />);
    expect(screen.queryByText(/Hãy/)).not.toBeInTheDocument();
  });

  it('renders icon when provided', () => {
    render(<EmptyState title="Empty" icon={<span data-testid="icon">X</span>} />);
    expect(screen.getByTestId('icon')).toBeInTheDocument();
  });

  it('renders action when provided', () => {
    render(<EmptyState title="Empty" action={<button>Thêm mới</button>} />);
    expect(screen.getByRole('button', { name: 'Thêm mới' })).toBeInTheDocument();
  });

  it('applies custom className', () => {
    const { container } = render(<EmptyState title="X" className="my-class" />);
    expect((container.firstChild as HTMLElement)).toHaveClass('my-class');
  });
});