public async Task RetryDelegatingHandler_DoesNotRetryOnNotSupportedException()
{
// arrange
int callCounter = 0;
PipelineContext contextMock = Substitute.For <PipelineContext>();
contextMock.ConnectionStatusChangesHandler = new ConnectionStatusChangesHandler(delegate(ConnectionStatus status, ConnectionStatusChangeReason reason) { });
IDelegatingHandler innerHandlerMock = Substitute.For <IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] { 1, 2, 3 });
using var message = new Message(memoryStream);
innerHandlerMock
.SendEventAsync(Arg.Is(message), Arg.Any <CancellationToken>())
.Returns(t =>
{
callCounter++;
Message m = t.Arg <Message>();
Stream stream = m.GetBodyStream();
byte[] buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubException(TestExceptionMessage, isTransient: true);
});
var retryDelegatingHandler = new RetryDelegatingHandler(contextMock, innerHandlerMock);
// act
NotSupportedException exception = await retryDelegatingHandler
.SendEventAsync(message, CancellationToken.None)
.ExpectedAsync <NotSupportedException>()
.ConfigureAwait(false);
// assert
callCounter.Should().Be(1);
}
public async Task Retry_MessageHasBeenReadTransientExceptionOccured_Throws()
{
int callCounter = 0;
var contextMock = Substitute.For <IPipelineContext>();
var innerHandlerMock = Substitute.For <IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] { 1, 2, 3 });
var message = new Message(memoryStream);
innerHandlerMock.SendEventAsync(Arg.Is(message), Arg.Any <CancellationToken>()).Returns(t =>
{
callCounter++;
var m = t.Arg <Message>();
Stream stream = m.GetBodyStream();
var buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubClientTransientException("");
});
var sut = new RetryDelegatingHandler(contextMock);
sut.ContinuationFactory = c => innerHandlerMock;
var cancellationToken = new CancellationToken();
await sut.SendEventAsync(message, cancellationToken).ExpectedAsync <IotHubClientTransientException>();
Assert.AreEqual(callCounter, 1);
}
public async Task Retry_NonSeekableStream_NotSupportedException()
{
int callCounter = 0;
var contextMock = Substitute.For <IPipelineContext>();
var innerHandlerMock = Substitute.For <IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] { 1, 2, 3 });
var message = new Message(memoryStream);
innerHandlerMock.SendEventAsync(Arg.Is(message), Arg.Any <CancellationToken>()).Returns(t =>
{
callCounter++;
var m = t.Arg <Message>();
Stream stream = m.GetBodyStream();
var buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubException(TestExceptionMessage, isTransient: true);
});
var sut = new RetryDelegatingHandler(contextMock, innerHandlerMock);
var cancellationToken = new CancellationToken();
NotSupportedException exception = await sut.SendEventAsync(message, cancellationToken).ExpectedAsync <NotSupportedException>().ConfigureAwait(false);
Assert.AreEqual(callCounter, 1);
}
public async Task Retry_OneMessageHasBeenReadTransientExceptionOccured_Throws()
{
int callCounter = 0;
var innerHandlerMock = Substitute.For <IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] { 1, 2, 3 });
var message = new Message(memoryStream);
var messages = new[] { message };
innerHandlerMock.SendEventAsync(Arg.Is(messages), Arg.Any <CancellationToken>()).Returns(t =>
{
callCounter++;
Message m = t.Arg <IEnumerable <Message> >().First();
Stream stream = m.GetBodyStream();
var buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubClientTransientException("");
});
var sut = new RetryDelegatingHandler(innerHandlerMock);
var cancellationToken = new CancellationToken();
await sut.SendEventAsync(messages, cancellationToken).ExpectedAsync <IotHubClientTransientException>();
Assert.AreEqual(callCounter, 1);
}
public async Task Retry_MessageHasBeenReadTransientExceptionOccured_Throws()
{
int callCounter = 0;
var innerHandlerMock = Substitute.For <IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] { 1, 2, 3 });
var message = new Message(memoryStream);
innerHandlerMock.SendEventAsync(Arg.Is(message)).Returns(t =>
{
callCounter++;
var m = t.Arg <Message>();
Stream stream = m.BodyStream;
var buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubClientTransientException("");
});
var sut = new RetryDelegatingHandler(innerHandlerMock);
await sut.SendEventAsync(message).ExpectedAsync <IotHubClientTransientException>();
Assert.AreEqual(callCounter, 1);
}
public async Task Retry_MessageHasBeenReadTransientExceptionOccured_Throws()
{
int callCounter = 0;
var innerHandlerMock = Substitute.For<IDelegatingHandler>();
var memoryStream = new NotSeekableStream(new byte[] {1,2,3});
var message = new Message(memoryStream);
innerHandlerMock.SendEventAsync(Arg.Is(message)).Returns(t =>
{
callCounter++;
var m = t.Arg<Message>();
Stream stream = m.GetBodyStream();
var buffer = new byte[3];
stream.Read(buffer, 0, 3);
throw new IotHubClientTransientException("");
});
var sut = new RetryDelegatingHandler(innerHandlerMock);
await sut.SendEventAsync(message).ExpectedAsync<IotHubClientTransientException>();
Assert.AreEqual(callCounter, 1);
}