public void TestDivideByZero()
        {
            var c         = new DivideCommand(options);
            var exception = Record.Exception(() => c.Execute(new long[] { 8, 0 }));

            Assert.IsType <DivideByZeroException>(exception);
        }
        public void TestDivideCommand()
        {
            var c            = new DivideCommand(options);
            var actualResult = c.Execute(new long[] { 4, 2, 1 });

            Assert.Equal(2, actualResult);
        }