public void IsDivisibleBy_NumbersTest()
        {
            var target = new Problem1();

            Assert.IsTrue(target.IsDivisibleBy(6, 2));
            Assert.IsTrue(target.IsDivisibleBy(100, 5));
            Assert.IsTrue(target.IsDivisibleBy(999, 3));
            Assert.IsTrue(target.IsDivisibleBy(19371, 1));
            Assert.IsTrue(target.IsDivisibleBy(7, 1));
            Assert.IsTrue(target.IsDivisibleBy(0, 15));

            Assert.IsFalse(target.IsDivisibleBy(7, 9));
            Assert.IsFalse(target.IsDivisibleBy(1, 9));
            Assert.IsFalse(target.IsDivisibleBy(10, 100));
        }
        public void IsDivisibleBy_NegativeB()
        {
            var target = new Problem1();

            target.IsDivisibleBy(1, -3);
        }
        public void IsDivisibleBy_ZeroAsDenominator()
        {
            var target = new Problem1();

            target.IsDivisibleBy(1, 0);
        }
        public void IsDivisibleBy_NegativeA()
        {
            var target = new Problem1();

            target.IsDivisibleBy(-1, 3);
        }