text: const assert = require('assert');
  const tellSign = require('../lib/tell-sign');
  
  describe('Library Main', () => {
    describe('tellSign', () => {
      it('should return the right zodiac sign when given date', () => {
        const sign = tellSign({ month: 12, day: 24 });
        assert.equal(sign.sign, 'Sagittarius');
      });
  
      it('should return the right zodiac sign when given date', () => {
        const sign = tellSign({ month: 7, day: 10, year: 1900 });
        assert.equal(sign.sign, 'Gemini');
      });
  
      it('should return the right zodiac sign when given date', () => {
        const sign = tellSign({ month: 8, day: 16, year: 1900 });
        assert.equal(sign.sign, 'Leo');
      });
  
      it('should return the right zodiac sign when given a zodiac type', () => {
        const sign = tellSign({ month: 5, day: 22, year: 1900 }, 'tropical');
        assert.equal(sign.sign, 'Gemini');
      });
    })
  })
  