public void TestEquality()
{
// Default.
var key = new AffinityKey();
Assert.IsNull(key.Key);
Assert.IsNull(key.Affinity);
Assert.AreEqual(0, key.GetHashCode());
Assert.AreEqual(new AffinityKey(), key);
// Ctor 1.
const string myKey = "myKey";
key = new AffinityKey(myKey);
Assert.AreEqual(myKey, key.Key);
Assert.AreEqual(myKey, key.Affinity);
Assert.AreNotEqual(0, key.GetHashCode());
// Ctor 2.
var ver1 = new AffinityKey(long.MaxValue, int.MaxValue);
var ver2 = new AffinityKey(long.MaxValue, int.MaxValue);
Assert.AreEqual(ver1, ver2);
Assert.IsTrue(ver1 == ver2);
Assert.IsFalse(ver1 != ver2);
Assert.AreNotEqual(key, ver1);
Assert.IsTrue(key != ver1);
Assert.IsFalse(key == ver1);
// ToString.
Assert.AreEqual("AffinityKey [Key=1, Affinity=2]", new AffinityKey(1, 2).ToString());
}