text: const sum = require('./sum');
  
  describe('calculator', () => {
      it('adds two positive numbers', () => {
          const positiveNum1 = 5;
          const positiveNum2 = 7;
          const result = sum(positiveNum1, positiveNum2);
          expect(result).toBe(positiveNum1 + positiveNum2);
      });
  })
  