public void CompareToTest()
{
var territory1 = new Territory()
{
TerritoryId = 1
};
var territory2 = new Territory()
{
TerritoryId = 2
};
Assert.AreEqual(-1, territory1.CompareTo(territory2));
Assert.AreEqual(1, territory2.CompareTo(territory1));
Assert.Throws <ArgumentException>(() => territory1.CompareTo(new object()));
}