public void TryLock_EmptyInstances()
{
var now = new DateTime(2020, 7, 21, 13, 00, 00, DateTimeKind.Utc);
var l = Redlock.TryLock("r", "n", Ttl, _emptyInstances, _log, () => now);
Assert.Null(l);
}
public void TryLock()
{
var instances = MemInstances(3);
var @lock = Redlock.TryLock("r", "n", Ttl, instances.ToInstances(), _log);
Assert.NotNull(@lock);
Assert.All(instances, i => Assert.True(i.Contains("r", "n")));
}
public void TryLock_ValidUntil()
{
var mem = MemInstances(3, (ttl, duration) => TimeSpan.FromSeconds(10));
var impl = mem.ToInstances();
var now = new DateTime(2020, 7, 21, 13, 00, 00, DateTimeKind.Utc);
var l = Redlock.TryLock("r", "n", Ttl, impl, _log, () => now);
Assert.NotNull(l);
Assert.Equal(new DateTime(2020, 7, 21, 13, 00, 10, DateTimeKind.Utc), l !.Value.ValidUntilUtc);
}
public void TryLockWithRepeater_UnableToObtainLock()
{
var mem = MemInstances(3);
Lock("r", "n2", mem);
var repeater = new Mock <IRedlockRepeater>(MockBehavior.Strict);
repeater.Setup(x => x.Next()).Returns(false);
var l = Redlock.TryLock("r", "n", Ttl, mem.ToInstances(), _log, repeater.Object, 600);
Assert.Null(l);
}
public void TryLock_NoQuorum()
{
var instances = MemInstances(3);
Lock("r", "n2", instances[0], instances[1]);
var l = Redlock.TryLock("r", "n", Ttl, instances.ToInstances(), _log);
Assert.Null(l);
Assert.All(instances, i => Assert.False(i.Contains("r", "n")));
Assert.True(instances[0].Contains("r", "n2"));
Assert.True(instances[1].Contains("r", "n2"));
Assert.False(instances[2].Contains("r", "n2"));
}
public void TryLock_ExceptionsOnLock_Quorum()
{
var mem = MemInstances(3);
var err = ErrInstances(2);
var l = Redlock.TryLock("r", "n", Ttl, TestRedlock.Instances(mem, err), _log);
Assert.NotNull(l);
Assert.All(mem, i => i.Contains("r", "n"));
var errorLogs = _log.Logs.Where(x => x.LogLevel == LogLevel.Error).ToArray();
Assert.Equal(2, errorLogs.Length);
Assert.Contains(errorLogs, e => e.Exception == err[0].TryLockException);
Assert.Contains(errorLogs, e => e.Exception == err[1].TryLockException);
}
/// <inheritdoc />
public Redlock?TryCreate <T>(string resource, TimeSpan lockTimeToLive, T repeater, IReadOnlyDictionary <string, string>?meta, int maxWaitMs)
where T : IRedlockRepeater
{
return(Redlock.TryLock(
resource,
Nonce(resource, lockTimeToLive),
lockTimeToLive,
_impl.Instances,
_logger,
repeater,
maxWaitMs,
_opt.Value.UtcNow,
meta
));
}
/// <inheritdoc />
public Redlock?TryCreate(string resource, TimeSpan lockTimeToLive, IReadOnlyDictionary <string, string>?meta)
{
return(Redlock.TryLock(resource, Nonce(resource, lockTimeToLive), lockTimeToLive, _impl.Instances, _logger,
_opt.Value.UtcNow, meta));
}
