function depositProfit(deposit, rate, threshold) {
    //  write code here.
    let year = 0;
    let balance = deposit;
    const rateDecimal = rate / 100;
        console.log(rateDecimal);
    // for(let i = 1; i < 4; i++){
    //     year ++;
    //         console.log(year);
    //     balance = (balance * rateDecimal) + balance;
    //         console.log(balance); 
    // }
    // console.log(`Ending Balance: ${balance}`);
    //     answer =  balance.ToFixed();
    //         console.log(answer);   
    //     return answer;    
    
    while (balance < threshold) {
        balance = (balance * rateDecimal) + balance;
            console.log(balance);
            year++;
    }
        console.log(year);
    return year;    
}

/**
* Test Suite 
*/
describe('depositProfit()', () => {
    it('returns number of years it will take to hit threshold based off of deposit & rate', () => {
        // arrange
        const deposit = 100;
        const rate = 20;
        const threshold = 170;
        
        // act
        const result = depositProfit(deposit, rate, threshold)

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(3);
    });
});