public void NoInfiniteRetriesTest()
{
byte[] defaultData = new byte[] { 1, 2, 3 };
var data = new ConcurrentDictionary <BobKey, byte[]>();
var behaviour1 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat1 = new BobNodeClientMockHelper.MockClientStat();
var behaviour2 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat2 = new BobNodeClientMockHelper.MockClientStat();
BobNodeClient[] clients = new BobNodeClient[]
{
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour1, stat: stat1),
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour2, stat: stat2)
};
behaviour1.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
behaviour2.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
using (var client = new BobClusterClient(clients, SequentialNodeSelectionPolicy.Factory, operationRetryCount: 10))
{
Assert.Throws <BobOperationException>(() => client.Put(BobKey.FromUInt64(1), defaultData));
Assert.Throws <BobOperationException>(() => client.Get(BobKey.FromUInt64(1)));
}
}
public void TimeSinceLastOperationTest()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
var stat = new BobNodeClientMockHelper.MockClientStat();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour, stat))
{
client.Open();
client.Put(BobKey.FromUInt64(10), new byte[] { 1, 2, 3 });
int startTick = Environment.TickCount;
for (int i = 0; i < 100; i++)
{
Thread.Sleep(10);
int elapsed = unchecked (Environment.TickCount - startTick);
Assert.InRange(client.TimeSinceLastOperationMs, elapsed - 10, elapsed + 100);
}
client.Get(BobKey.FromUInt64(10));
Assert.True(client.TimeSinceLastOperationMs < 100);
}
}
public void TimeoutIsNotCountingAsErrors()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
var stat = new BobNodeClientMockHelper.MockClientStat();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour, stat))
{
client.Open();
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
try
{
behaviour.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.DeadlineExceeded, "Deadline");
client.Get(BobKey.FromUInt64(1));
}
catch (TimeoutException)
{
}
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
}
}
public void CancellationIsNotCountingAsErrors()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
var stat = new BobNodeClientMockHelper.MockClientStat();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour, stat))
{
client.Open();
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
try
{
CancellationTokenSource cancelled = new CancellationTokenSource();
cancelled.Cancel();
client.Get(BobKey.FromUInt64(1), cancelled.Token);
}
catch (OperationCanceledException)
{
}
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
}
}
public void KeyNotFoundIsNotCountingAsErrors()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
var stat = new BobNodeClientMockHelper.MockClientStat();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour, stat))
{
client.Open();
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
try
{
client.Get(BobKey.FromUInt64(100));
}
catch (BobKeyNotFoundException)
{
}
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
}
}
public void ConnectingToFailedStateTest()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour))
{
Assert.Equal(BobNodeClientState.Idle, client.State);
behaviour.Pause.Reset();
behaviour.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
Task asyncOp = Task.Factory.StartNew(() =>
{
try { client.Open(); }
catch { }
}, TaskCreationOptions.LongRunning);
for (int i = 0; i < 1000 && client.State == BobNodeClientState.Idle; i++)
{
Thread.Sleep(10);
}
Assert.Equal(BobNodeClientState.Connecting, client.State);
behaviour.Pause.Set();
asyncOp.Wait();
Assert.Equal(BobNodeClientState.TransientFailure, client.State);
}
}
public void ConnectingStateTest()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour))
{
Assert.Equal(BobNodeClientState.Idle, client.State);
behaviour.Pause.Reset();
Task asyncOp = Task.Factory.StartNew(() => client.Open(), TaskCreationOptions.LongRunning);
for (int i = 0; i < 1000 && client.State == BobNodeClientState.Idle; i++)
{
Thread.Sleep(10);
}
Assert.Equal(BobNodeClientState.Connecting, client.State);
behaviour.Pause.Set();
asyncOp.Wait();
Assert.Equal(BobNodeClientState.Ready, client.State);
}
}
public void PutGetExistOperationWithRetriesTest()
{
byte[] defaultData = new byte[] { 1, 2, 3 };
var data = new ConcurrentDictionary <BobKey, byte[]>();
var behaviour1 = new BobNodeClientMockHelper.MockClientBehaviour();
var behaviour2 = new BobNodeClientMockHelper.MockClientBehaviour();
BobNodeClient[] clients = new BobNodeClient[]
{
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour1, stat: null),
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour2, stat: null)
};
behaviour1.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
using (var client = new BobClusterClient <ulong>(clients, SequentialNodeSelectionPolicy.Factory, operationRetryCount: 1, keySerializer: null, keySerializationPoolSize: null))
{
client.Put(1, defaultData);
client.Put(ulong.MaxValue, defaultData);
Assert.Equal(defaultData, client.Get(1));
Assert.Equal(defaultData, client.Get(ulong.MaxValue));
Assert.Throws <BobKeyNotFoundException>(() => client.Get(2));
Assert.Equal(new bool[] { true, false }, client.Exists(new ulong[] { 1, 2 }));
for (ulong i = 100; i < 1000; i++)
{
client.Put(i, defaultData);
}
for (ulong i = 100; i < 1000; i++)
{
Assert.Equal(defaultData, client.Get(i));
}
for (ulong i = 100; i < 1000; i++)
{
Assert.Equal(defaultData, client.Get(i, fullGet: true, new CancellationToken()));
}
Assert.All(client.Exists(Enumerable.Range(100, 1000 - 100).Select(o => (ulong)o).ToArray()), res => Assert.True(res));
Assert.All(client.Exists(Enumerable.Range(20000, 1000).Select(o => (ulong)o).ToArray(), fullGet: true, new CancellationToken()), res => Assert.False(res));
Assert.All(client.Exists(Enumerable.Range(100, 1000 - 100).Select(o => (ulong)o).ToList()), res => Assert.True(res));
Assert.All(client.Exists(Enumerable.Range(20000, 1000).Select(o => (ulong)o).ToList(), fullGet: true, new CancellationToken()), res => Assert.False(res));
for (ulong i = uint.MaxValue; i < (ulong)uint.MaxValue + 1000; i++)
{
client.Put(i, defaultData);
}
for (ulong i = uint.MaxValue; i < (ulong)uint.MaxValue + 1000; i++)
{
Assert.Equal(defaultData, client.Get(i));
}
}
}
public async Task RetriesWorksTestAsync()
{
byte[] defaultData = new byte[] { 1, 2, 3 };
var data = new ConcurrentDictionary <BobKey, byte[]>();
var behaviour1 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat1 = new BobNodeClientMockHelper.MockClientStat();
var behaviour2 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat2 = new BobNodeClientMockHelper.MockClientStat();
BobNodeClient[] clients = new BobNodeClient[]
{
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour1, stat: stat1),
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour2, stat: stat2)
};
behaviour1.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
using (var client = new BobClusterClient(clients, SequentialNodeSelectionPolicy.Factory, operationRetryCount: 1))
{
await client.PutAsync(BobKey.FromUInt64(1), defaultData);
Assert.Equal(defaultData, await client.GetAsync(BobKey.FromUInt64(1)));
Assert.True((await client.ExistsAsync(new BobKey[] { BobKey.FromUInt64(1) }))[0]);
for (int i = 10; i < 100; i++)
{
await client.PutAsync(BobKey.FromUInt64((ulong)i), defaultData);
}
for (int i = 10; i < 100; i++)
{
Assert.Equal(defaultData, await client.GetAsync(BobKey.FromUInt64((ulong)i)));
}
for (int i = 10; i < 100; i++)
{
Assert.True((await client.ExistsAsync(new BobKey[] { BobKey.FromUInt64((ulong)i) }))[0]);
}
}
}
public void NoRetryForKeyNotFoundTest()
{
byte[] defaultData = new byte[] { 1, 2, 3 };
var data = new ConcurrentDictionary <BobKey, byte[]>();
var behaviour1 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat1 = new BobNodeClientMockHelper.MockClientStat();
var behaviour2 = new BobNodeClientMockHelper.MockClientBehaviour();
var stat2 = new BobNodeClientMockHelper.MockClientStat();
BobNodeClient[] clients = new BobNodeClient[]
{
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour1, stat: stat1),
BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour: behaviour2, stat: stat2)
};
using (var client = new BobClusterClient(clients, SequentialNodeSelectionPolicy.Factory, operationRetryCount: 10))
{
Assert.Throws <BobKeyNotFoundException>(() => client.Get(BobKey.FromUInt64(1)));
Assert.Equal(1, stat1.GetRequestCount + stat2.GetRequestCount);
Assert.Throws <BobKeyNotFoundException>(() => client.Get(BobKey.FromUInt64(2)));
Assert.Equal(2, stat1.GetRequestCount + stat2.GetRequestCount);
Assert.Throws <BobKeyNotFoundException>(() => client.Get(BobKey.FromUInt64(3)));
Assert.Equal(3, stat1.GetRequestCount + stat2.GetRequestCount);
Assert.Throws <BobKeyNotFoundException>(() => client.GetAsync(BobKey.FromUInt64(1)).GetAwaiter().GetResult());
Assert.Equal(4, stat1.GetRequestCount + stat2.GetRequestCount);
Assert.Throws <BobKeyNotFoundException>(() => client.GetAsync(BobKey.FromUInt64(2)).GetAwaiter().GetResult());
Assert.Equal(5, stat1.GetRequestCount + stat2.GetRequestCount);
Assert.Throws <BobKeyNotFoundException>(() => client.GetAsync(BobKey.FromUInt64(3)).GetAwaiter().GetResult());
Assert.Equal(6, stat1.GetRequestCount + stat2.GetRequestCount);
}
}
public void SequentialErrorCountTest()
{
var data = new ConcurrentDictionary <BobKey, byte[]>();
data[BobKey.FromUInt64(1)] = new byte[] { 1, 2, 3 };
var behaviour = new BobNodeClientMockHelper.MockClientBehaviour();
var stat = new BobNodeClientMockHelper.MockClientStat();
using (var client = BobNodeClientMockHelper.CreateMockedClientWithData(data, behaviour, stat))
{
client.Open();
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
behaviour.ErrorStatus = new Grpc.Core.Status(Grpc.Core.StatusCode.Internal, "Internal error");
for (int i = 1; i <= 100; i++)
{
try
{
client.Get(BobKey.FromUInt64(1));
}
catch (BobOperationException)
{
}
Assert.Equal(BobNodeClientState.TransientFailure, client.State);
Assert.Equal(i, client.SequentialErrorCount);
}
behaviour.ErrorStatus = Grpc.Core.Status.DefaultSuccess;
client.Get(BobKey.FromUInt64(1));
Assert.Equal(BobNodeClientState.Ready, client.State);
Assert.Equal(0, client.SequentialErrorCount);
}
}