public void IsInRangeShouldThrowIfAnyParameterIsNull()
{
Comparable @null = null;
Comparable instance = new Comparable();
Should.Throw <ArgumentNullException>(() => @null.IsInRange(instance, instance));
Should.Throw <ArgumentNullException>(() => instance.IsInRange(@null, instance));
Should.Throw <ArgumentNullException>(() => instance.IsInRange(instance, @null));
}
