public void SubscribeToEvent_handles_multiple_events([Frozen] IMessageDescriptorStore messageDescriptorStore, RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
sut.SubscribeToEvent <SecondTestEvent>();
Assert.That(messageDescriptorStore.Events, Contains.Item(typeof(FirstTestEvent)));
Assert.That(messageDescriptorStore.Events, Contains.Item(typeof(SecondTestEvent)));
}
public async Task NotifySuccess_acks_event_messages([Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut, string consumerTag, ulong deliveryTag, bool redelivered, string exchange, string routingKey, string messageId, Guid correlationId, FirstTestEvent @event)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync().ConfigureAwait(false);
var encoding = Encoding.UTF8;
IBasicProperties properties = new BasicProperties
{
MessageId = messageId,
ContentEncoding = encoding.WebName,
Headers = new Dictionary <string, object>
{
["Nybus:MessageId"] = encoding.GetBytes(messageId),
["Nybus:MessageType"] = encoding.GetBytes(DescriptorName(@event.GetType())),
["Nybus:CorrelationId"] = correlationId.ToByteArray()
}
};
var body = configuration.Serializer.SerializeObject(@event, encoding);
var incomingMessages = sequence.DumpInList();
sut.Consumers.First().Value.HandleBasicDeliver(consumerTag, deliveryTag, redelivered, exchange, routingKey, properties, body);
await sut.NotifySuccessAsync(incomingMessages.First());
Mock.Get(configuration.ConnectionFactory.CreateConnection().CreateModel()).Verify(p => p.BasicAck(deliveryTag, It.IsAny <bool>()));
}
public async Task Events_with_invalid_type_format_are_ignored_and_nacked([Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut, string consumerTag, ulong deliveryTag, bool redelivered, string exchange, string routingKey, string messageId, Guid correlationId, FirstTestEvent @event)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
var encoding = Encoding.UTF8;
IBasicProperties properties = new BasicProperties
{
MessageId = messageId,
ContentEncoding = encoding.WebName,
Headers = new Dictionary <string, object>
{
["Nybus:MessageId"] = encoding.GetBytes(messageId),
["Nybus:MessageType"] = encoding.GetBytes(@event.GetType().FullName),
["Nybus:CorrelationId"] = correlationId.ToByteArray()
}
};
var body = configuration.Serializer.SerializeObject(@event, encoding);
var incomingMessages = sequence.DumpInList();
sut.Consumers.First().Value.HandleBasicDeliver(consumerTag, deliveryTag, redelivered, exchange, routingKey, properties, body);
Assert.That(incomingMessages, Is.Empty);
Mock.Get(configuration.ConnectionFactory.CreateConnection().CreateModel()).Verify(p => p.BasicNack(deliveryTag, It.IsAny <bool>(), It.IsAny <bool>()));
}
public async Task Queue_is_bound_to_exchange_when_a_event_is_registered([Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
Mock.Get(configuration.ConnectionFactory.CreateConnection().CreateModel()).Verify(p => p.QueueBind(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <IDictionary <string, object> >()));
}
public async Task Exchange_is_declared_when_a_event_is_registered([Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
Mock.Get(configuration.EventExchangeManager).Verify(p => p.EnsureExchangeExists(It.IsAny <IModel>(), It.IsAny <string>(), It.IsAny <string>()));
}
public async Task QueueFactory_is_invoked_when_a_event_is_registered([Frozen] IMessageDescriptorStore messageDescriptorStore, [Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
Mock.Get(configuration.EventQueueFactory).Verify(p => p.CreateQueue(It.IsAny <IModel>()));
}
public async Task Events_can_be_subscribed(RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
var incomingMessages = sequence.DumpInList();
Assert.That(incomingMessages, Is.Empty);
}
public async Task Event_consumer_is_exposed_when_sequence_is_subscribed(RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
sequence.Subscribe(_ => { }); // subscribes to the sequence but takes no action when items are published
Assert.That(sut.Consumers.Count, Is.EqualTo(1));
}
public async Task RabbitMq_headers_are_read_from_incoming_message([Frozen] IRabbitMqConfiguration configuration, RabbitMqBusEngine sut, string consumerTag, ulong deliveryTag, bool redelivered, string exchange, string routingKey, string messageId, Guid correlationId, FirstTestEvent Event, string headerKey, string headerValue)
{
sut.SubscribeToEvent <FirstTestEvent>();
var sequence = await sut.StartAsync();
var encoding = Encoding.UTF8;
IBasicProperties properties = new BasicProperties
{
MessageId = messageId,
ContentEncoding = encoding.WebName,
Headers = new Dictionary <string, object>
{
["Nybus:MessageId"] = encoding.GetBytes(messageId),
["Nybus:MessageType"] = encoding.GetBytes(DescriptorName(Event.GetType())),
["Nybus:CorrelationId"] = correlationId.ToByteArray(),
[$"RabbitMq:{headerKey}"] = headerValue
}
};
var body = configuration.Serializer.SerializeObject(Event, encoding);
var incomingMessages = sequence.DumpInList();
sut.Consumers.First().Value.HandleBasicDeliver(consumerTag, deliveryTag, redelivered, exchange, routingKey, properties, body);
Assert.That(incomingMessages, Has.Exactly(1).InstanceOf <EventMessage <FirstTestEvent> >());
var message = incomingMessages[0] as EventMessage <FirstTestEvent>;
Assert.That(message, Is.Not.Null);
Assert.That(message.MessageId, Is.EqualTo(messageId));
Assert.That(message.MessageType, Is.EqualTo(MessageType.Event));
Assert.That(message.Type, Is.EqualTo(Event.GetType()));
Assert.That(message.Event, Is.Not.Null);
Assert.That(message.Headers, Contains.Key($"RabbitMq:{headerKey}"));
Assert.That(message.Headers[$"RabbitMq:{headerKey}"], Is.EqualTo(headerValue));
}
public void SubscribeToEvent_registers_event_type([Frozen] IMessageDescriptorStore messageDescriptorStore, RabbitMqBusEngine sut)
{
sut.SubscribeToEvent <FirstTestEvent>();
Assert.That(messageDescriptorStore.Events, Contains.Item(typeof(FirstTestEvent)));
}