public void CanUnlockExclusiveLock()
{
_lockTable = new LockTable(TimeSpan.FromSeconds(10), TimeSpan.FromMilliseconds(300));
Assert.DoesNotThrow(() =>
{
var block = new Block(RandomFilename, 0);
_lockTable.ExclusiveLock(block);
_lockTable.Unlock(block);
});
}
public void CanWaitForExclusiveLockIfHaveExclusive()
{
_lockTable = new LockTable(TimeSpan.FromMilliseconds(500), TimeSpan.FromMilliseconds(100));
Assert.DoesNotThrow(() =>
{
var block = new Block(RandomFilename, 0);
_lockTable.ExclusiveLock(block);
Task.Run(async() =>
{
await Task.Delay(500);
_lockTable.Unlock(block);
});
_lockTable.ExclusiveLock(block);
_lockTable.Unlock(block);
});
}
public void CanHaveMultipleSharedLocks()
{
_lockTable = new LockTable(TimeSpan.FromSeconds(10), TimeSpan.FromMilliseconds(300));
Assert.DoesNotThrow(() =>
{
var block = new Block(RandomFilename, 0);
_lockTable.SharedLock(block);
_lockTable.SharedLock(block);
_lockTable.SharedLock(block);
_lockTable.Unlock(block);
});
}
public void CannotWaitForExclusiveLockIfHaveExclusive()
{
_lockTable = new LockTable(TimeSpan.FromMilliseconds(500), TimeSpan.FromMilliseconds(100));
Assert.Throws <LockAbortException>(() =>
{
var block = new Block(RandomFilename, 0);
_lockTable.ExclusiveLock(block);
_lockTable.ExclusiveLock(block);
_lockTable.Unlock(block);
});
}