public async Task CanGetLock()
{
var m = new DynamoDBMutex(RegionEndpoint.EUWest1);
var t = await m.AcquireLockAsync(Guid.NewGuid().ToString("N"), TimeSpan.FromSeconds(10));
Assert.NotNull(t);
}
public async Task Race()
{
var m1 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var m2 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var m3 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var resId = Guid.NewGuid().ToString("N");
var t1 = await m1.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t2 = await m2.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t3 = await m3.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var i = 0;
if (t1 != null)
{
i++;
}
if (t2 != null)
{
i++;
}
if (t3 != null)
{
i++;
}
Assert.Equal(1, i);
}
public async Task RaceAsync()
{
var m1 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var m2 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var m3 = new DynamoDBMutex(RegionEndpoint.EUWest1);
var resId = Guid.NewGuid().ToString("N");
var t1 = m1.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t2 = m2.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t3 = m3.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
Task.WaitAll(t1, t2, t3);
var i = 0;
if (t1.Result != null)
{
i++;
}
if (t2.Result != null)
{
i++;
}
if (t3.Result != null)
{
i++;
}
Assert.Equal(1, i);
}
public async Task CanRenew()
{
var m = new DynamoDBMutex(RegionEndpoint.EUWest1);
var resId = Guid.NewGuid().ToString("N");
var t = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t2 = await m.RenewAsync(t, TimeSpan.FromSeconds(20));
Assert.NotNull(t2);
}
public async Task CanNotGetLockOnTheSameItemTwice()
{
var m = new DynamoDBMutex(RegionEndpoint.EUWest1);
var resId = Guid.NewGuid().ToString("N");
var t = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var t2 = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
Assert.Null(t2);
}
public async Task CanNotRenewIfSomeoneElse()
{
var m = new DynamoDBMutex(RegionEndpoint.EUWest1);
var resId = Guid.NewGuid().ToString("N");
var t = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
var other = new LockToken(t.ResourceId, "other", t.LeaseExpiry);
var t2 = await m.RenewAsync(other, TimeSpan.FromSeconds(20));
Assert.Null(t2);
}
public async Task CreatesTableCorrectly()
{
var m = new DynamoDBMutex(RegionEndpoint.EUWest1, new DynamoDBMutexSettings {
TableName = "LockTestDeleteMe", CreateTableIfNotExists = true
});
var resId = Guid.NewGuid().ToString("N");
var t = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
await m.ReleaseLockAsync(t);
var t2 = await m.AcquireLockAsync(resId, TimeSpan.FromSeconds(10));
Assert.NotNull(t2);
}
