public void CompareToIsImplemented()
        {
            ElectricPotentialChangeRate voltpersecond = ElectricPotentialChangeRate.FromVoltsPerSeconds(1);

            Assert.Equal(0, voltpersecond.CompareTo(voltpersecond));
            Assert.True(voltpersecond.CompareTo(ElectricPotentialChangeRate.Zero) > 0);
            Assert.True(ElectricPotentialChangeRate.Zero.CompareTo(voltpersecond) < 0);
        }
        public void CompareToThrowsOnNull()
        {
            ElectricPotentialChangeRate voltpersecond = ElectricPotentialChangeRate.FromVoltsPerSeconds(1);

            Assert.Throws <ArgumentNullException>(() => voltpersecond.CompareTo(null));
        }
        public void CompareToThrowsOnTypeMismatch()
        {
            ElectricPotentialChangeRate voltpersecond = ElectricPotentialChangeRate.FromVoltsPerSeconds(1);

            Assert.Throws <ArgumentException>(() => voltpersecond.CompareTo(new object()));
        }