import { describe, it, expect } from 'vitest';
import { getInitials } from '../app/dashboard/utils';

describe('getInitials', () => {
  it('should return first two initials for full name', () => {
    expect(getInitials('John Doe')).toBe('JD');
  });

  it('should return single initial for single name', () => {
    expect(getInitials('Jane')).toBe('J');
  });

  it('should handle names with multiple spaces', () => {
    expect(getInitials('John Jacob Jingleheimer Schmidt')).toBe('JJ');
  });

  it('should return ? for empty string', () => {
    expect(getInitials('')).toBe('?');
  });

  it('should return ? for undefined', () => {
    expect(getInitials(undefined as unknown as string)).toBe('?');
  });

  it('should handle lowercase names', () => {
    expect(getInitials('john doe')).toBe('JD');
  });
});