public async Task PublishMessageAfterRegister_RegisterMultipleTimes_ReceiverCountAsMuchAsRegisterTimes(int regTimes)
{
// Arrange
var router = new UnicastMessageRouter <int>();
var key = string.Empty;
var message = 15;
var randomValue = new Random(regTimes);
for (int i = 0; i < regTimes; i++)
{
var val = randomValue.Next();
await router.RegisterCallbackAsync(
new Registration <int>(string.Empty, args =>
{
val++;
return(Task.CompletedTask);
}),
CancellationToken.None);
}
// Act
var result = await router.PublishMessageAsync(key, message);
// Assert
Assert.AreEqual(regTimes, result.ReceiverCount);
}
public async Task PublishMessage_AllQueueReceived(int queueCount, int messageCount)
{
var queueTask = new Task[queueCount];
var router = new UnicastMessageRouter <int>();
for (int i = 0; i < queueCount; i++)
{
var mq = new MessageQueue <int>();
var binding = await mq.BindAsync($"queue[{i}]", router);
queueTask[i] = Task.Run(async() =>
{
for (int j = 0; j < messageCount; j++)
{
var msg = await mq.TakeMessageAsync();
Assert.AreEqual(j, msg.Payload);
}
Assert.IsFalse(mq.TryTakeMessage(out _));
await binding.DisposeAsync();
});
}
for (int i = 0; i < messageCount; i++)
{
for (int j = 0; j < queueCount; j++)
{
await router.PublishMessageAsync($"queue[{j}]", i);
}
}
await Task.WhenAll(queueTask);
}
public async Task PublishAfterDispose_NoCallback()
{
// Arrange
var router = new UnicastMessageRouter <int>();
var cb = Mock.Create <AsyncMessageHandler <int> >();
Mock.Arrange(() => cb(Arg.IsAny <MessageArgs <int> >()))
.Returns(Task.CompletedTask)
.Occurs(1);
await using (await router.RegisterCallbackAsync(new Registration <int>(string.Empty, cb), CancellationToken.None))
{
// Act
await router.PublishMessageAsync(string.Empty, 1);
}
// Act
await router.PublishMessageAsync(string.Empty, 1);
// Assert
Mock.Assert(cb);
}
public async Task PublishMessageAfterRegister_HandlerThrowException_ResultContainException()
{
// Arrange
var router = new UnicastMessageRouter <int>();
var key = string.Empty;
var message = 15;
await router.RegisterCallbackAsync(
new Registration <int>(string.Empty, args => Task.FromException(new Exception())),
CancellationToken.None);
// Act
var result = await router.PublishMessageAsync(key, message);
// Assert
Assert.IsNotNull(result.Exception);
}
public async Task PublishMessageAfterRegister_NoException()
{
// Arrange
var router = new UnicastMessageRouter <int>();
var key = string.Empty;
var message = 15;
await router.RegisterCallbackAsync(
new Registration <int>(string.Empty, args => Task.CompletedTask),
CancellationToken.None);
// Act
var result = await router.PublishMessageAsync(key, message);
// Assert
Assert.IsNull(result.Exception);
}
public async Task PublishMessageAfterRegister_CallbackSucceed(string bindingKey, string publishKey, bool shouldBeReceived)
{
// Arrange
var router = new UnicastMessageRouter <int>();
var cb = Mock.Create <AsyncMessageHandler <int> >();
var key = bindingKey;
var message = 15;
Mock.Arrange(() => cb(Arg.IsAny <MessageArgs <int> >()))
.Returns(Task.CompletedTask)
.Occurs(shouldBeReceived ? 1:0);
await router.RegisterCallbackAsync(new Registration <int>(publishKey, cb), CancellationToken.None);
// Act
await router.PublishMessageAsync(key, message);
// Assert
Mock.Assert(cb);
}
public async Task PublishMessage_FirstHandlerThrow_SecondHandlerInvoked()
{
// Arrange
var router = new UnicastMessageRouter <int>();
var cb = Mock.Create <AsyncMessageHandler <int> >();
var key = string.Empty;
var message = 15;
Mock.Arrange(() => cb(Arg.IsAny <MessageArgs <int> >()))
.Returns(Task.CompletedTask)
.Occurs(1);
await router.RegisterCallbackAsync(new Registration <int>(key, args => Task.FromException(new Exception())),
CancellationToken.None);
await router.RegisterCallbackAsync(new Registration <int>(key, cb), CancellationToken.None); // register twice
// Act
await router.PublishMessageAsync(key, message);
// Assert
Mock.Assert(cb);
}
public async Task PublishMessage_BindInMultipleThreads_TotalCallback(int times)
{
// Arrange
var router = new UnicastMessageRouter <int>();
var cb = Mock.Create <AsyncMessageHandler <int> >();
Mock.Arrange(() => cb(Arg.IsAny <MessageArgs <int> >()))
.Returns(Task.CompletedTask)
.Occurs(times);
await router.RegisterCallbackAsync(new Registration <int>(string.Empty, cb));
var cancellationTokenSrc = new CancellationTokenSource();
var bindTask = Task.Run(async() =>
{
var reg = new Registration <int>(string.Empty, args => Task.CompletedTask);
while (!cancellationTokenSrc.IsCancellationRequested)
{
await using (await router.RegisterCallbackAsync(reg, CancellationToken.None))
{
await Task.Delay(1, CancellationToken.None);
}
}
}, CancellationToken.None);
for (int i = 0; i < times; i++)
{
await router.PublishMessageAsync(string.Empty, 1);
}
cancellationTokenSrc.Cancel();
await bindTask;
Mock.Assert(cb);
}