public WhenMessageHandlerThrowsExceptionsDefinedByRetryPolicy()
{
var fixture = new Fixture()
.CustomizeConnectedProjectionIdentifiers();
var exceptionSequence = fixture
.CreateMany <RetryException>(2, 10)
.ToArray <Exception>();
_loggerMock = new FakeLoggerFactory().ResolveLoggerMock <MessageHandlerWithExecutionTracking>();
_projection = fixture.Create <ConnectedProjectionIdentifier>();
_handlerWithoutPolicy = new MessageHandlerWithExecutionTracking(
_projection,
_loggerMock.AsLogger(),
exceptionSequence);
_numberOfRetries = exceptionSequence.Length;
_numberOfExpectedAttempts = Times.Exactly(1 + _numberOfRetries);
_initialWait = TimeSpan.FromMilliseconds(fixture.CreatePositive <int>());
_messages = fixture.CreateMany <StreamMessage>().ToList();
new LinearBackOff <RetryException>(_numberOfRetries, _initialWait)
.ApplyOn(_handlerWithoutPolicy)
.HandleAsync(_messages, Mock.Of <IStreamGapStrategy>(), CancellationToken.None)
.GetAwaiter()
.GetResult();
}
public WhenMessageHandlerThrowsAnExceptionThatWasNotDefinedToRetryAfterRetrying()
{
var fixture = new Fixture()
.CustomizeConnectedProjectionIdentifiers();
_exceptionSequence = new Exception[] { new RetryException(), new DoNotRetryException() };
_loggerMock = new FakeLoggerFactory().ResolveLoggerMock <MessageHandlerWithExecutionTracking>();
_projection = fixture.Create <ConnectedProjectionIdentifier>();
_handlerWithoutPolicy = new MessageHandlerWithExecutionTracking(
_projection,
_loggerMock.AsLogger(),
_exceptionSequence);
var numberOfRetries = _exceptionSequence.Count(exception => exception is RetryException);
_numberOfExpectedAttempts = Times.Exactly(1 + numberOfRetries);
_initialWait = TimeSpan.FromMilliseconds(fixture.CreatePositive <int>());
_messages = fixture.CreateMany <StreamMessage>().ToList();
_sut = new LinearBackOff <RetryException>(numberOfRetries, _initialWait)
.ApplyOn(_handlerWithoutPolicy);
}
public WhenMessageHandlerThrowsTheExceptionDefinedInThePolicyMoreThanTheNumberOfRetries()
{
var fixture = new Fixture()
.CustomizeConnectedProjectionIdentifiers();
var exceptionSequence = fixture
.CreateMany <RetryException>(2, 10)
.ToArray <Exception>();
_loggerMock = new FakeLoggerFactory().ResolveLoggerMock <MessageHandlerWithExecutionTracking>();
_projection = fixture.Create <ConnectedProjectionIdentifier>();
_handlerWithoutPolicy = new MessageHandlerWithExecutionTracking(
_projection,
_loggerMock.AsLogger(),
exceptionSequence);
_numberOfRetries = exceptionSequence.Length - 1;
_numberOfExpectedAttempts = Times.Exactly(1 + _numberOfRetries);
_initialWait = TimeSpan.FromMilliseconds(fixture.CreatePositive <int>());
_messages = fixture.CreateMany <StreamMessage>().ToList();
_sut = new LinearBackOff <RetryException>(_numberOfRetries, _initialWait)
.ApplyOn(_handlerWithoutPolicy);
}
public When_a_projection_catch_up_processes_a_stream_and_throws_a_detected_stream_gap_exception()
{
var fixture = new Fixture()
.CustomizeConnectedProjectionIdentifiers();
var contextMock = new Mock <IConnectedProjectionContext <FakeProjectionContext> >();
contextMock
.Setup(context => context.GetProjectionPosition(It.IsAny <ConnectedProjectionIdentifier>(), It.IsAny <CancellationToken>()))
.ReturnsAsync((long?)null);
var streamMock = new Mock <IReadonlyStreamStore>();
streamMock
.Setup(store =>
store.ReadAllForwards(
It.IsAny <long>(),
It.IsAny <int>(),
It.IsAny <bool>(),
It.IsAny <CancellationToken>()))
.ReturnsAsync(() =>
{
var position = fixture.CreatePositive <long>().WithMaximumValueOf(long.MaxValue - 1000);
return(new ReadAllPage(
position,
position.CreateRandomHigherValue(),
true,
ReadDirection.Forward,
(p, token) => throw new NotImplementedException(),
fixture.CreateMany <StreamMessage>(2, 10).ToArray()));
});
_commandBusMock = new Mock <IConnectedProjectionsCommandBus>();
_gapStrategySettings = fixture.Create <StreamGapStrategyConfigurationSettings>();
var gapStrategyMock = new Mock <IStreamGapStrategy>();
gapStrategyMock
.SetupGet(strategy => strategy.Settings)
.Returns(_gapStrategySettings);
_loggerMock = new FakeLogger();
_projection = new FakeProjection(
"catch-up-dummy",
(messages, strategy, name, ct)
=> throw new ConnectedProjectionMessageHandlingException(
new StreamGapDetectedException(fixture.CreateMany <long>(1, 10), name),
name,
new ActiveProcessedStreamState(0)),
contextMock.Object);
var sut = new ConnectedProjectionCatchUp <FakeProjectionContext>(
_projection,
ConnectedProjectionSettings.Default,
streamMock.Object,
_commandBusMock.Object,
gapStrategyMock.Object,
_loggerMock.AsLogger());
sut.CatchUpAsync(CancellationToken.None).GetAwaiter();
}