text: function fareEstimator(rideTime, rideDistance, costPerMinute, costPerMile) {
      let arr = [];
      for (let i = 0; i < costPerMile.length; i++) {
          arr.push((costPerMinute[i]*rideTime + costPerMile[i]*rideDistance))
      }
      return arr;
  }
  
  
  
  /**
  * Test Suite
  */
  describe('fareEstimator()', () => {
      it('returns cost of ride', () => {
          // arrange
          const rideTime = 30;
          const rideDistance = 7;
          const costPerMinute = [0.2, 0.35, 0.4, 0.5];
          const costPerMile = [1.2, 2.0, 2.4, 3.5];
  
          // act
          const result = fareEstimator(rideTime, rideDistance, costPerMinute, costPerMile);
  
          // log
          console.log("result: ", result);
  
          // assert
          expect(result).toEqual([14.4, 24.5, 28.8, 39.5]);
      });
  });
  