import { describe, it, expect } from 'vitest';
import { DashboardLeaguePositionDisplay } from './DashboardLeaguePositionDisplay';

describe('DashboardLeaguePositionDisplay', () => {
  describe('happy paths', () => {
    it('should format position correctly', () => {
      expect(DashboardLeaguePositionDisplay.format(1)).toBe('#1');
      expect(DashboardLeaguePositionDisplay.format(5)).toBe('#5');
      expect(DashboardLeaguePositionDisplay.format(100)).toBe('#100');
    });

    it('should handle null values', () => {
      expect(DashboardLeaguePositionDisplay.format(null)).toBe('-');
    });

    it('should handle undefined values', () => {
      expect(DashboardLeaguePositionDisplay.format(undefined)).toBe('-');
    });
  });

  describe('edge cases', () => {
    it('should handle position 0', () => {
      expect(DashboardLeaguePositionDisplay.format(0)).toBe('#0');
    });

    it('should handle large positions', () => {
      expect(DashboardLeaguePositionDisplay.format(999)).toBe('#999');
    });
  });
});