public async Task Test_that_filter_can_interrupt_invocation_chain_with_state()
{
// Arrange
var messageId = Guid.NewGuid();
const string state = "state";
const string correlationId = "correlationId";
const string exchange = "exchange";
const string routingKey = "routingKey";
const int retryCount = 123;
var options = new MessageSubscriptionOptions <TestMessage, string>(routingKey);
options.WithHandler <TestMessageHandlerWithState>();
options.WithState(state);
var filterMock = new Mock <IMessageFilter>();
filterMock
.Setup(x => x.HandleMessageAsync(It.IsNotNull <MessageFilteringContext>()))
.Returns <MessageFilteringContext>(context => Task.FromResult(MessageHandlingResult.TransientFailure()));
var globalFilters = new List <IMessageFilter>
{
filterMock.Object
};
var subscription = new MessageSubscription <TestMessage, string>(options, globalFilters);
// Action
var result = await subscription.InvokeHandlerAsync
(
_serviceProvider,
new TestMessage
{
Id = messageId
},
new MessageHeaders(correlationId),
new MessageHandlingContext(exchange, retryCount, routingKey),
_messagePublisherMock.Object
);
// Assert
Assert.AreEqual(MessageHandlingResult.TransientFailure(), result);
_testHandlerWithStateImplMock.Verify
(
x => x.HandleAsync
(
It.IsAny <string>(),
It.IsAny <TestMessage>(),
It.IsAny <MessageHeaders>(),
It.IsAny <IMessagePublisher>()
),
times: Times.Never
);
filterMock.Verify(x => x.HandleMessageAsync(It.IsNotNull <MessageFilteringContext>()), Times.Once());
}
public async Task Test_that_handler_with_state_invoked_without_filters()
{
// Arrange
var messageId = Guid.NewGuid();
const string state = "state";
const string correlationId = "correlationId";
const string exchange = "exchange";
const string routingKey = "routingKey";
const int retryCount = 123;
var options = new MessageSubscriptionOptions <TestMessage, string>(routingKey);
options.WithHandler <TestMessageHandlerWithState>();
options.WithState(state);
var subscription = new MessageSubscription <TestMessage, string>(options, Array.Empty <IMessageFilter>());
_testHandlerWithStateImplMock
.Setup(x => x.HandleAsync
(
It.IsAny <string>(),
It.IsAny <TestMessage>(),
It.IsAny <MessageHeaders>(),
It.IsAny <IMessagePublisher>()
))
.Returns <string, TestMessage, MessageHeaders, IMessagePublisher>((s, m, h, p) => Task.FromResult(MessageHandlingResult.Success()));
// Action
var result = await subscription.InvokeHandlerAsync
(
_serviceProvider,
new TestMessage
{
Id = messageId
},
new MessageHeaders(correlationId),
new MessageHandlingContext(exchange, retryCount, routingKey),
_messagePublisherMock.Object
);
// Assert
Assert.AreEqual(MessageHandlingResult.Success(), result);
_testHandlerWithStateImplMock.Verify
(
x => x.HandleAsync
(
It.Is <string>(s => s == state),
It.Is <TestMessage>(m => m.Id == messageId),
It.IsNotNull <MessageHeaders>(),
It.IsNotNull <IMessagePublisher>()
),
times: Times.Once
);
}
public void Test_that_exception_propagated_through_the_filters_with_state()
{
// Arrange
var messageId = Guid.NewGuid();
const string state = "state";
const string correlationId = "correlationId";
const string exchange = "exchange";
const string routingKey = "routingKey";
const int retryCount = 123;
var options = new MessageSubscriptionOptions <TestMessage, string>(routingKey);
options.WithHandler <TestMessageHandlerWithState>();
options.WithState(state);
var filterMock = new Mock <IMessageFilter>();
Exception caughtException = null;
filterMock
.Setup(x => x.HandleMessageAsync(It.IsNotNull <MessageFilteringContext>()))
.Returns <MessageFilteringContext>(async context =>
{
try
{
return(await context.InvokeNextAsync());
}
catch (Exception ex)
{
caughtException = ex;
throw;
}
});
_testHandlerWithStateImplMock
.Setup(x => x.HandleAsync
(
It.IsAny <string>(),
It.IsAny <TestMessage>(),
It.IsAny <MessageHeaders>(),
It.IsAny <IMessagePublisher>()
))
.Returns <string, TestMessage, MessageHeaders, IMessagePublisher>((s, m, h, p) => throw new TestException());
var globalFilters = new List <IMessageFilter>
{
filterMock.Object
};
var subscription = new MessageSubscription <TestMessage, string>(options, globalFilters);
// Action
Assert.ThrowsAsync <TestException>(async() =>
{
await subscription.InvokeHandlerAsync
(
_serviceProvider,
new TestMessage
{
Id = messageId
},
new MessageHeaders(correlationId),
new MessageHandlingContext(exchange, retryCount, routingKey),
_messagePublisherMock.Object
);
});
// Assert
Assert.IsInstanceOf <TestException>(caughtException);
_testHandlerWithStateImplMock.Verify
(
x => x.HandleAsync
(
It.IsAny <string>(),
It.IsAny <TestMessage>(),
It.IsAny <MessageHeaders>(),
It.IsAny <IMessagePublisher>()
),
times: Times.Once
);
filterMock.Verify(x => x.HandleMessageAsync(It.IsNotNull <MessageFilteringContext>()), Times.Once());
}