public void AllConditionDelegatesAreExecutedToFindCorrectFactory(int numberOfRegisteredReactionFactories)
{
var callCounter = 0;
bool fakeConditionDelegate(Stream inputStream)
{
callCounter++; return(false);
}
var testedProvider = new ThreadsafeBagServerReactionProvider();
for (var i = 0; i < numberOfRegisteredReactionFactories; i++)
{
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), fakeConditionDelegate);
}
using var fakeInputStream = new MemoryStream();
// This will throw an exception, as no matching condition has been registered, so without a try block, the test would fail.
try
{
testedProvider.CreateServerReaction(fakeInputStream);
}
catch (ServerReactionException exc) when(exc.Message.Equals("The server could not create a reaction to a client's input: None of the registered factories' conditions matched the input stream."))
{
}
callCounter.Should().Be(numberOfRegisteredReactionFactories);
}
public void RegisteringReactionFactoryThrowsExceptionIfReactionFactoryIsNull()
{
var provider = new ThreadsafeBagServerReactionProvider();
Action registration = () => provider.RegisterServerReactionFactoryForCondition(null, (Stream inputStream) => true);
registration.Should()
.ThrowExactly <ArgumentNullException>()
.Which.ParamName.Should().Be("reactionFactory");
}
public void RegisteringReactionFactoryThrowsExceptionIfConditionDelegateIsNull()
{
var provider = new ThreadsafeBagServerReactionProvider();
Action registration = () => provider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), null);
registration.Should()
.ThrowExactly <ArgumentNullException>()
.Which.ParamName.Should().Be("conditionDelegate");
}
public void CreatingServerReactionThrowsExceptionIfInputStreamIsNull()
{
var provider = new ThreadsafeBagServerReactionProvider();
Action reactionCreation = () => provider.CreateServerReaction(null);
reactionCreation.Should()
.ThrowExactly <ArgumentNullException>()
.Which.ParamName.Should().Be("receivedData");
}
public void CreatingReactionThrowsExceptionIfNoConditionHasBeenRegistered()
{
var testedProvider = new ThreadsafeBagServerReactionProvider();
using var fakeInputStream = new MemoryStream();
Action reactionCreation = () => testedProvider.CreateServerReaction(fakeInputStream);
reactionCreation.Should().ThrowExactly <ServerReactionException>()
.WithMessage("The server could not create a reaction to a client's input: No reaction factories have been registered.");
}
public void CreatingReactionThrowsExceptionIfNoMatchingConditionHasBeenRegistered()
{
var testedProvider = new ThreadsafeBagServerReactionProvider();
testedProvider.RegisterServerReactionFactoryForCondition((Stream input) => new MemoryStream(), (Stream input) => false);
using var fakeInputStream = new MemoryStream();
Action reactionCreation = () => testedProvider.CreateServerReaction(fakeInputStream);
reactionCreation.Should().ThrowExactly <ServerReactionException>()
.WithMessage("The server could not create a reaction to a client's input: None of the registered factories' conditions matched the input stream.");
}
public void CreatingReactionThrowsExceptionIfFactoryThrowsException()
{
var factoryException = new Exception("This is a test exception thrown by a server response factory.");
var testedProvider = new ThreadsafeBagServerReactionProvider();
testedProvider.RegisterServerReactionFactoryForCondition((Stream input) => throw factoryException, (Stream input) => true);
using var fakeInputStream = new MemoryStream();
Action reactionCreating = () => testedProvider.CreateServerReaction(fakeInputStream);
reactionCreating.Should().ThrowExactly <ServerReactionException>()
.WithMessage("Could not create a reaction to a client's input: The reaction factory method threw an exception.")
.Which.InnerException.Should().Be(factoryException);
}
public void CreatingReactionReturnsStreamFromCorrectFactory()
{
using var expectedStream = new MemoryStream();
var testedProvider = new ThreadsafeBagServerReactionProvider();
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), (Stream inputStream) => false);
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), (Stream inputStream) => false);
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => expectedStream, (Stream inputStream) => true);
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), (Stream inputStream) => false);
testedProvider.RegisterServerReactionFactoryForCondition((Stream inputStream) => new MemoryStream(), (Stream inputStream) => false);
using var fakeInputSream = new MemoryStream();
var receivedReaction = testedProvider.CreateServerReaction(fakeInputSream);
receivedReaction.Should().Be(expectedStream);
}
