the-tip-top-frontend/__tests__/components/UserDropdown.test.tsx

/**
 * Tests for the UserDropdown component
 * @jest-environment jsdom
 */

import React from 'react';
import { render, screen, fireEvent } from '@testing-library/react';
import { UserDropdown } from '@/components/UserDropdown';

// Mock next/link
jest.mock('next/link', () => {
  const MockLink = ({ children, href }: { children: React.ReactNode; href: string }) => (
    <a href={href}>{children}</a>
  );
  MockLink.displayName = 'MockLink';
  return MockLink;
});

describe('UserDropdown', () => {
  const mockUser = {
    firstName: 'John',
    lastName: 'Doe',
    email: 'john.doe@example.com',
  };

  const mockOnLogout = jest.fn();

  beforeEach(() => {
    jest.clearAllMocks();
  });

  it('should render user initials', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    expect(screen.getByText('JD')).toBeInTheDocument();
  });

  it('should render user name and email', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    expect(screen.getByText('John Doe')).toBeInTheDocument();
    expect(screen.getByText('john.doe@example.com')).toBeInTheDocument();
  });

  it('should toggle dropdown on click', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    // Dropdown should be closed initially
    expect(screen.queryByText('Profil')).not.toBeInTheDocument();

    // Click to open - get the main trigger button (contains user name)
    const triggerButton = screen.getByText('John Doe').closest('button');
    fireEvent.click(triggerButton!);
    expect(screen.getByText('Profil')).toBeInTheDocument();
    expect(screen.getByText('Deconnexion')).toBeInTheDocument();

    // Click to close
    fireEvent.click(triggerButton!);
    expect(screen.queryByText('Profil')).not.toBeInTheDocument();
  });

  it('should render profile link with correct path', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/admin/profil"
        onLogout={mockOnLogout}
      />
    );

    const triggerButton = screen.getByText('John Doe').closest('button');
    fireEvent.click(triggerButton!);

    const profileLink = screen.getByText('Profil').closest('a');
    expect(profileLink).toHaveAttribute('href', '/admin/profil');
  });

  it('should call onLogout when logout button is clicked', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    const triggerButton = screen.getByText('John Doe').closest('button');
    fireEvent.click(triggerButton!);
    fireEvent.click(screen.getByText('Deconnexion'));

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

  it('should have onClick handler on profile link', () => {
    render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    const triggerButton = screen.getByText('John Doe').closest('button');
    fireEvent.click(triggerButton!);

    const profileLink = screen.getByText('Profil').closest('a');
    expect(profileLink).toBeInTheDocument();
    expect(profileLink).toHaveAttribute('href', '/profil');
  });

  it('should apply blue accent color by default', () => {
    const { container } = render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    const avatar = container.querySelector('.bg-blue-600');
    expect(avatar).toBeInTheDocument();
  });

  it('should apply green accent color when specified', () => {
    const { container } = render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
        accentColor="green"
      />
    );

    const avatar = container.querySelector('.bg-green-600');
    expect(avatar).toBeInTheDocument();
  });

  it('should handle null user gracefully', () => {
    const { container } = render(
      <UserDropdown
        user={null}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    // Should render empty initials
    const avatarDiv = container.querySelector('.bg-blue-600');
    expect(avatarDiv).toBeInTheDocument();
  });

  it('should handle user with missing firstName', () => {
    render(
      <UserDropdown
        user={{ lastName: 'Doe', email: 'test@test.com' }}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    expect(screen.getByText('D')).toBeInTheDocument();
  });

  it('should apply custom className', () => {
    const { container } = render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
        className="custom-class"
      />
    );

    expect(container.firstChild).toHaveClass('custom-class');
  });

  it('should rotate chevron icon when dropdown is open', () => {
    const { container } = render(
      <UserDropdown
        user={mockUser}
        profilePath="/profil"
        onLogout={mockOnLogout}
      />
    );

    const chevron = container.querySelector('.w-4.h-4.text-gray-500');
    expect(chevron).not.toHaveClass('rotate-180');

    const triggerButton = screen.getByText('John Doe').closest('button');
    fireEvent.click(triggerButton!);

    const rotatedChevron = container.querySelector('.rotate-180');
    expect(rotatedChevron).toBeInTheDocument();
  });
});