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import { describe, expect, it, vi } from 'vitest';

import { Button } from '@/components/ui/button';
import { fireEvent, render, screen } from '@/test/utils';

describe('Button', () => {
  it('should render with default variant and size', () => {
    render(<Button>Click me</Button>);

    const button = screen.getByRole('button', { name: 'Click me' });
    expect(button).toBeInTheDocument();
    expect(button).toHaveClass('bg-primary');
  });

  it('should render with secondary variant', () => {
    render(<Button variant="secondary">Secondary</Button>);

    const button = screen.getByRole('button', { name: 'Secondary' });
    expect(button).toHaveClass('bg-secondary');
  });

  it('should render with outline variant', () => {
    render(<Button variant="outline">Outline</Button>);

    const button = screen.getByRole('button', { name: 'Outline' });
    expect(button).toHaveClass('border');
  });

  it('should render with ghost variant', () => {
    render(<Button variant="ghost">Ghost</Button>);

    const button = screen.getByRole('button', { name: 'Ghost' });
    expect(button).toHaveClass('hover:bg-accent');
  });

  it('should render with destructive variant', () => {
    render(<Button variant="destructive">Destructive</Button>);

    const button = screen.getByRole('button', { name: 'Destructive' });
    expect(button).toHaveClass('bg-destructive');
  });

  it('should render with different sizes', () => {
    const { rerender } = render(<Button size="default">Default</Button>);

    let button = screen.getByRole('button', { name: 'Default' });
    expect(button).toHaveClass('h-10');

    rerender(<Button size="sm">Small</Button>);
    button = screen.getByRole('button', { name: 'Small' });
    expect(button).toHaveClass('h-9');

    rerender(<Button size="lg">Large</Button>);
    button = screen.getByRole('button', { name: 'Large' });
    expect(button).toHaveClass('h-11');
  });

  it('should handle click events', () => {
    const handleClick = vi.fn();
    render(<Button onClick={handleClick}>Click me</Button>);

    const button = screen.getByRole('button', { name: 'Click me' });
    fireEvent.click(button);

    expect(handleClick).toHaveBeenCalledTimes(1);
  });

  it('should be disabled when disabled prop is true', () => {
    render(<Button disabled>Disabled</Button>);

    const button = screen.getByRole('button', { name: 'Disabled' });
    expect(button).toBeDisabled();
    expect(button).toHaveClass('disabled:opacity-50');
  });

  it('should render with custom className', () => {
    render(<Button className="custom-class">Custom</Button>);

    const button = screen.getByRole('button', { name: 'Custom' });
    expect(button).toHaveClass('custom-class');
  });

  it('should render as a different element when asChild is true', () => {
    render(
      <Button asChild>
        <a href="#">Link Button</a>
      </Button>
    );

    const link = screen.getByRole('link', { name: 'Link Button' });
    expect(link).toBeInTheDocument();
    expect(link).toHaveAttribute('href', '#');
    expect(link).toHaveClass('inline-flex');
  });
});