public void NullObject_ReturnsFirstLock()
{
var hl = new HashLock(10);
var firstLock = hl.GetLock(0);
var nullLock = hl.GetLock(null);
Assert.AreSame(firstLock, nullLock);
Assert.AreEqual(0, 0.GetHashCode());
}
public void LockObject_CannotBeModified()
{
var hl = new HashLock(1);
var lock1 = hl.GetLock("");
var lock2 = hl.GetLock("");
Assert.AreSame(lock1, lock2);
lock1 = 5;
Assert.AreNotSame(lock1, lock2);
Assert.AreSame(lock2, hl.GetLock(""));
}
public void CreatedLocks_AreShared()
{
// arrange
var hl = new HashLock(2);
// act
var lock1 = hl.GetLock(1);
var lock2 = hl.GetLock(2);
var lock3 = hl.GetLock(3);
var lock4 = hl.GetLock(4);
// assert
Assert.AreSame(lock1, lock3);
Assert.AreSame(lock2, lock4);
Assert.AreNotSame(lock1, lock2);
Assert.AreNotSame(lock3, lock4);
Enumerable.Range(1,4)
.ToList()
.ForEach(i => Assert.AreEqual(i, i.GetHashCode()));
}