public void SagaMachine_Should_Not_Stop_Saga_If_An_Exception_Happens()
{
//Arrange
string dummyLockToken;
_keyValueStoreMock.Setup(o => o.TakeLockWithDefaultExpiryTime(It.IsAny <string>(), out dummyLockToken)).Returns(true);
_keyValueStoreMock.Setup(o => o.ReleaseLock(It.IsAny <string>(), It.IsAny <string>())).Returns(true);
_keyValueStoreMock.Setup(o => o.GetValue <TestState>(It.IsAny <string>()))
.Returns(new HashedValue <TestState>
{
Hash = Guid.Empty.ToString(),
Value = new TestState()
});
// We need the below to set the return value
_keyValueStoreMock.Setup(kv => kv.Remove(It.IsAny <string>(), It.IsAny <string>())).Returns(true);
Func <IEnumerable <ISagaMessageIdentifier>, Task> publisher = async messages =>
{
foreach (var message in messages)
{
if (message is GoodbyeMessage)
{
await Task.Delay(1000);
throw new Exception();
}
await Task.Delay(500);
}
};
//Act
_sagaMachine = new SagaMachine <TestState>(_keyValueStoreMock.Object, publisher, _mockEventloggerFactory.Object);
_sagaMachine
.WithMessage <HelloMessage>((proccess, msg) => proccess
.Publish((msgForPub, state) => new[] { new GoodbyeMessage() })
.StopSaga()
.Execute()
);
Func <Task> act = async() => { await _sagaMachine.Handle(new HelloMessage()).ConfigureAwait(false); };
act.ShouldThrow <Exception>();
//Assert
_keyValueStoreMock.Verify(o => o.TrySetValue(It.IsAny <string>(), It.IsAny <TestState>(), It.IsAny <string>()), Times.Never);
_keyValueStoreMock.Verify(kv => kv.Remove(It.IsAny <string>(), It.IsAny <string>()), Times.Never);
}
public async Task SagaMachineShouldInitialiseState()
{
//Arrange
var sagaInstanceId = Guid.NewGuid();
_keyValueStoreMock.Setup(o => o.TrySetValue(sagaInstanceId.ToString(), It.IsAny <TestState>(), string.Empty)).Returns(true);
_keyValueStoreMock.Setup(o => o.TakeLockWithDefaultExpiryTime(sagaInstanceId.ToString(), It.IsAny <Guid>())).ReturnsAsync(true);
_keyValueStoreMock.Setup(o => o.ReleaseLock(sagaInstanceId.ToString(), It.IsAny <Guid>())).ReturnsAsync(true);
_sagaMachine
.WithMessage <HelloMessage>((proccess, msg) => proccess
.InitialiseState(hello => new TestState
{
SomeStateVariable = hello.Message,
SagaInstanceId = sagaInstanceId
})
.Execute()
);
//Act
await _sagaMachine.Handle(new HelloMessage
{
Message = "Initialised",
SagaInstanceId = sagaInstanceId
});
//Assert
_keyValueStoreMock.Verify(o => o.TrySetValue(sagaInstanceId.ToString(), It.Is <TestState>(state => state.SomeStateVariable == "Initialised"), string.Empty), Times.AtLeastOnce);
}
