public async Task ErrorHandler_NoErrors_Success()
{
var innerHandler = Substitute.For<IDelegatingHandler>();
innerHandler.OpenAsync(Arg.Is(false)).Returns(TaskConstants.Completed);
innerHandler.SendEventAsync(Arg.Any<Message>()).Returns(TaskConstants.Completed);
var sut = new ErrorDelegatingHandler(() => innerHandler);
//emulate Gatekeeper behaviour: it opens the channel for us
await sut.OpenAsync(false);
await sut.SendEventAsync(new Message(new byte[0]));
await innerHandler.Received(1).OpenAsync(Arg.Is(false));
await innerHandler.Received(1).SendEventAsync(Arg.Any<Message>());
}
public async Task ErrorHandler_NoErrors_Success()
{
var contextMock = Substitute.For<IPipelineContext>();
var innerHandler = Substitute.For<IDelegatingHandler>();
innerHandler.OpenAsync(Arg.Any<CancellationToken>()).Returns(Task.CompletedTask);
innerHandler.SendEventAsync(Arg.Any<Message>(), Arg.Any<CancellationToken>()).Returns(Task.CompletedTask);
var sut = new ErrorDelegatingHandler(contextMock, innerHandler);
var cancellationToken = new CancellationToken();
await sut.OpenAsync(cancellationToken).ConfigureAwait(false);
await sut.SendEventAsync(new Message(new byte[0]), cancellationToken).ConfigureAwait(false);
await innerHandler.Received(1).OpenAsync(cancellationToken).ConfigureAwait(false);
await innerHandler.Received(1).SendEventAsync(Arg.Any<Message>(), cancellationToken).ConfigureAwait(false);
}
DeviceClient(IotHubConnectionString iotHubConnectionString, ITransportSettings[] transportSettings)
{
this.iotHubConnectionString = iotHubConnectionString;
#if !WINDOWS_UWP
var innerHandler = new RetryDelegatingHandler(
new ErrorDelegatingHandler(
() => new RoutingDelegatingHandler(this.CreateTransportHandler, iotHubConnectionString, transportSettings)));
#else
// UWP does not support retry yet. We need to make the underlying Message stream accessible internally on UWP
// to be sure that either the stream has not been read or it is seekable to safely retry operation
var innerHandler = new ErrorDelegatingHandler(
() => new RoutingDelegatingHandler(this.CreateTransportHandler, iotHubConnectionString, transportSettings));
#endif
this.InnerHandler = new GateKeeperDelegatingHandler(innerHandler);
}
static async Task OperationAsync_ExceptionThrownAndThenSucceed_OperationSuccessfullyCompleted(Func <IDelegatingHandler, Task> mockSetup, Func <IDelegatingHandler, Task> act, Func <IDelegatingHandler, Task> assert, Type thrownExceptionType, Type expectedExceptionType, bool reopenExpected)
{
int ctorCallCounter = 0;
var contextMock = Substitute.For <IPipelineContext>();
var innerHandler = Substitute.For <IDelegatingHandler>();
innerHandler.OpenAsync(Arg.Is(false), Arg.Any <CancellationToken>()).Returns(TaskConstants.Completed);
var sut = new ErrorDelegatingHandler(contextMock);
sut.ContinuationFactory = c => {
ctorCallCounter++;
return(innerHandler);
};
//initial OpenAsync to emulate Gatekeeper behaviour
var cancellationToken = new CancellationToken();
await sut.OpenAsync(false, cancellationToken).ConfigureAwait(false);
//set initial operation result that throws
bool[] setup = { false };
mockSetup(innerHandler).Returns(ci =>
{
if (setup[0])
{
return(TaskConstants.Completed);
}
throw ExceptionFactory[thrownExceptionType]();
});
//act
await((Func <Task>)(() => act(sut))).ExpectedAsync(expectedExceptionType).ConfigureAwait(false);
//override outcome
setup[0] = true;//otherwise previosly setup call will happen and throw;
mockSetup(innerHandler).Returns(TaskConstants.Completed);
//act
await act(sut).ConfigureAwait(false);
//assert
await innerHandler.Received(reopenExpected? 2 : 1).OpenAsync(Arg.Is(false), Arg.Any <CancellationToken>()).ConfigureAwait(false);
await assert(innerHandler).ConfigureAwait(false);
Assert.AreEqual(reopenExpected ? 2 : 1, ctorCallCounter);
}
public async Task ErrorHandler_NoErrors_Success()
{
var innerHandler = Substitute.For <IDelegatingHandler>();
innerHandler.OpenAsync(Arg.Is(false)).Returns(TaskConstants.Completed);
innerHandler.SendEventAsync(Arg.Any <Message>()).Returns(TaskConstants.Completed);
var sut = new ErrorDelegatingHandler(() => innerHandler);
//emulate Gatekeeper behaviour: it opens the channel for us
await sut.OpenAsync(false);
await sut.SendEventAsync(new Message(new byte[0]));
await innerHandler.Received(1).OpenAsync(Arg.Is(false));
await innerHandler.Received(1).SendEventAsync(Arg.Any <Message>());
}
static async Task OperationAsync_ExceptionThrownAndThenSucceed_OperationSuccessfullyCompleted(
Func <IDelegatingHandler, Task <Message> > mockSetup,
Func <IDelegatingHandler, Task <Message> > act,
Func <IDelegatingHandler, Task <Message> > assert,
Type thrownExceptionType,
Type expectedExceptionType)
{
var contextMock = Substitute.For <IPipelineContext>();
var innerHandler = Substitute.For <IDelegatingHandler>();
var sut = new ErrorDelegatingHandler(contextMock, innerHandler);
//initial OpenAsync to emulate Gatekeeper behaviour
var cancellationToken = new CancellationToken();
innerHandler.OpenAsync(Arg.Any <CancellationToken>()).Returns(Task.CompletedTask);
await sut.OpenAsync(cancellationToken).ConfigureAwait(false);
//set initial operation result that throws
bool[] setup = { false };
mockSetup(innerHandler).Returns(ci =>
{
if (setup[0])
{
return(Task.FromResult(new Message()));
}
throw ExceptionFactory[thrownExceptionType]();
});
//act
await((Func <Task>)(() => act(sut))).ExpectedAsync(expectedExceptionType).ConfigureAwait(false);
//override outcome
setup[0] = true;//otherwise previosly setup call will happen and throw;
mockSetup(innerHandler).Returns(new Message());
//act
await act(sut).ConfigureAwait(false);
//assert
await innerHandler.Received(1).OpenAsync(Arg.Any <CancellationToken>()).ConfigureAwait(false);
await assert(innerHandler).ConfigureAwait(false);
}
public async Task ErrorHandler_NoErrors_Success()
{
var contextMock = Substitute.For <IPipelineContext>();
var innerHandler = Substitute.For <IDelegatingHandler>();
innerHandler.OpenAsync(Arg.Is(false), Arg.Any <CancellationToken>()).Returns(TaskConstants.Completed);
innerHandler.SendEventAsync(Arg.Any <Message>(), Arg.Any <CancellationToken>()).Returns(TaskConstants.Completed);
var sut = new ErrorDelegatingHandler(contextMock);
sut.ContinuationFactory = c => innerHandler;
//emulate Gatekeeper behaviour: it opens the channel for us
var cancellationToken = new CancellationToken();
await sut.OpenAsync(false, cancellationToken).ConfigureAwait(false);
await sut.SendEventAsync(new Message(new byte[0]), cancellationToken).ConfigureAwait(false);
await innerHandler.Received(1).OpenAsync(Arg.Is(false), cancellationToken).ConfigureAwait(false);
await innerHandler.Received(1).SendEventAsync(Arg.Any <Message>(), cancellationToken).ConfigureAwait(false);
}
static async Task OpenAsync_ExceptionThrownAndThenSucceed_SuccessfullyOpened(Func <IDelegatingHandler, Task> mockSetup, Func <IDelegatingHandler, Task> act, Func <IDelegatingHandler, Task> assert, Type thrownExceptionType, Type expectedExceptionType)
{
int ctorCallCounter = 0;
var contextMock = Substitute.For <IPipelineContext>();
var innerHandler = Substitute.For <IDelegatingHandler>();
var sut = new ErrorDelegatingHandler(contextMock);
sut.ContinuationFactory = c => {
ctorCallCounter++;
return(innerHandler);
};
//set initial operation result that throws
bool[] setup = { false };
mockSetup(innerHandler).Returns(ci =>
{
if (setup[0])
{
return(Task.FromResult(Guid.NewGuid()));
}
throw ExceptionFactory[thrownExceptionType]();
});
//act
await((Func <Task>)(() => act(sut))).ExpectedAsync(expectedExceptionType).ConfigureAwait(false);
//override outcome
setup[0] = true;//otherwise previosly setup call will happen and throw;
mockSetup(innerHandler).Returns(TaskConstants.Completed);
//act
await act(sut).ConfigureAwait(false);
//assert
await assert(innerHandler).ConfigureAwait(false);
Assert.AreEqual(2, ctorCallCounter);
}
DeviceClient(IotHubConnectionString iotHubConnectionString, ITransportSettings[] transportSettings)
{
this.iotHubConnectionString = iotHubConnectionString;
#if !WINDOWS_UWP
var innerHandler = new RetryDelegatingHandler(
new ErrorDelegatingHandler(
() => new RoutingDelegatingHandler(this.CreateTransportHandler, iotHubConnectionString, transportSettings)));
#else
// UWP does not support retry yet. We need to make the underlying Message stream accessible internally on UWP
// to be sure that either the stream has not been read or it is seekable to safely retry operation
var innerHandler = new ErrorDelegatingHandler(
() => new RoutingDelegatingHandler(this.CreateTransportHandler, iotHubConnectionString, transportSettings));
#endif
this.InnerHandler = new GateKeeperDelegatingHandler(innerHandler);
}
static async Task OpenAsync_ExceptionThrownAndThenSucceed_SuccessfullyOpened(Func<IDelegatingHandler, Task> mockSetup, Func<IDelegatingHandler, Task> act, Func<IDelegatingHandler, Task> assert, Type thrownExceptionType, Type expectedExceptionType)
{
int ctorCallCounter = 0;
var innerHandler = Substitute.For<IDelegatingHandler>();
var sut = new ErrorDelegatingHandler(() =>
{
ctorCallCounter++;
return innerHandler;
});
//set initial operation result that throws
bool[] setup = { false };
mockSetup(innerHandler).Returns(ci =>
{
if (setup[0])
{
return Task.FromResult(Guid.NewGuid());
}
throw ExceptionFactory[thrownExceptionType]();
});
//act
await ((Func<Task>)(() => act(sut))).ExpectedAsync(expectedExceptionType);
//override outcome
setup[0] = true;//otherwise previosly setup call will happen and throw;
mockSetup(innerHandler).Returns(TaskConstants.Completed);
//act
await act(sut);
//assert
await assert(innerHandler);
Assert.AreEqual(2, ctorCallCounter);
}
static async Task OperationAsync_ExceptionThrownAndThenSucceed_OperationSuccessfullyCompleted(Func<IDelegatingHandler, Task> mockSetup, Func<IDelegatingHandler, Task> act, Func<IDelegatingHandler, Task> assert, Type thrownExceptionType, Type expectedExceptionType, bool reopenExpected)
{
int ctorCallCounter = 0;
var innerHandler = Substitute.For<IDelegatingHandler>();
var sut = new ErrorDelegatingHandler(() =>
{
ctorCallCounter++;
return innerHandler;
});
//initial OpenAsync to emulate Gatekeeper behaviour
innerHandler.OpenAsync(Arg.Is(false)).Returns(TaskConstants.Completed);
await sut.OpenAsync(false);
//set initial operation result that throws
bool[] setup = { false };
mockSetup(innerHandler).Returns(ci =>
{
if (setup[0])
{
return TaskConstants.Completed;
}
throw ExceptionFactory[thrownExceptionType]();
});
//act
await ((Func<Task>)(() => act(sut))).ExpectedAsync(expectedExceptionType);
//override outcome
setup[0] = true;//otherwise previosly setup call will happen and throw;
mockSetup(innerHandler).Returns(TaskConstants.Completed);
//act
await act(sut);
//assert
await innerHandler.Received(reopenExpected ? 2 : 1).OpenAsync(Arg.Is(false));
await assert(innerHandler);
Assert.AreEqual(reopenExpected ? 2 : 1, ctorCallCounter);
}