function sumOddFibonacciNumbers(num) {
    let fibNumbers = [1,1];
    let sum = 2;
    let nextFib = 2;
    // generate fibonacci numbers until num
    // at the same time add to the sum if the number is odd
    while (nextFib < num){
        if (nextFib % 2 !== 0) {
            sum += nextFib;
        }
        // calculate next fib
        nextFib = fibNumbers[fibNumbers.length - 1] + fibNumbers[fibNumbers.length - 2];
        fibNumbers.push(nextFib);
    }
    return sum;
}


/**
* Test Suite 
*/
describe('sumOddFibonacciNumbers()', () => {
    it('returns sum of all odd Fibonnci numbers', () => {
        // arrange
        const num = 10;
        
        // act
        const result = sumOddFibonacciNumbers(num);

        // log
        console.log("result 1: ", result);
        
        // assert
        expect(result).toBe(10);
    });

    it('returns sum of all odd Fibonnci numbers 2nd example', () => {
        // arrange
        const num = 1000;
        
        // act
        const result = sumOddFibonacciNumbers(num);

        // log
        console.log("result 2: ", result);
        
        // assert
        expect(result).toBe(1785);
    });
});