public void Initialize()
{
this.settings = new FunctionGenerator.PhysicalAssemblySettings("TryCatch", "dll", AppDomain.CurrentDomain.BaseDirectory);
this.functionGenerator = new FunctionGenerator(this.settings);
this.provider = new TryCatchBlockProvider(this.functionGenerator);
}
/// <summary>
/// Creates an instance of <see cref="IBoilerplateContext"/>
/// </summary>
/// <param name="identity">The current identity being used (rights and roles contract requirements/restrictions will apply to this identity)</param>
/// <param name="accessProvider">An access provider for specific types (available through IBoilerplateContext.Open<T>())</param>
/// <param name="permissionsProvider">The provider that will be used for all permissions verification attempts</param>
/// <param name="visibility">The visibility level that this context has. This will affect operations that rely on visibility (e.g. logging).</param>
/// <returns>An instance of <see cref="IBoilerplateContext"/></returns>
public static IBoilerplateContext New(IIdentity identity = null,
ITypeAccessProvider accessProvider = null,
IPermissionsProvider permissionsProvider = null,
Visibility visibility = Visibility.None)
{
var actualIdentity = identity ?? Identity.Default;
var actualTypeAccessProvider = accessProvider ?? TypeAccessProvider.Empty;
var actualPermissionsProvider = permissionsProvider ?? PermissionsProvider.Default;
var functionGenerator = new FunctionGenerator();
//Core providers
var translationProvider = new TranslationProvider(functionGenerator);
var validationProvider = new ValidationProvider(functionGenerator);
var logProvider = new LogProvider(functionGenerator, visibility);
//Set up error handling
var tryCatchProvider = new TryCatchBlockProvider(functionGenerator);
var exceptionHandlerProvider = new ExceptionHandlerProvider(logProvider);
var errorContext = new ImmutableErrorContext(logProvider, tryCatchProvider, exceptionHandlerProvider);
var bundle = new ContextBundle(permissionsProvider: actualPermissionsProvider,
errorContext: errorContext,
translationProvider: translationProvider,
accessProvider: actualTypeAccessProvider,
validationProvider: validationProvider,
logProvider: logProvider,
visibility: visibility);
return new InitialBoilerplateContext<ContractContext>(bundle, actualIdentity);
}
public void ThrownArgumentExceptionWithTwoBlocksWillBeHandled()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue <Type> .Empty
.Enqueue(typeof(ArgumentException))
.Enqueue(typeof(Exception));
var retryCount = 0;
var handler = new Mock <IVoidReturnExceptionHandler <ArgumentException> >(MockBehavior.Strict);
handler.Setup(x => x.Handle(It.Is <ArgumentException>(p => p.Message == message)));
handler.Setup(x => x.RetryCount).Returns(retryCount);
var handlerProvider = new Mock <IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler <ArgumentException>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
tryCatch.Try(() => { throw new ArgumentException(message); });
}
public void ExceptionHandlerCanReturnResult()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue <Type> .Empty
.Enqueue(typeof(Exception));
var retryCount = 0;
var handler = new Mock <IResultExceptionHandler <Exception, int> >(MockBehavior.Strict);
handler.Setup(x => x.RetryCount).Returns(retryCount);
handler.Setup(x => x.Handle(It.Is <Exception>(p => p.Message == message))).Returns(5);
var handlerProvider = new Mock <IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler <Exception, int>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var result = tryCatch.Try <int>(() => { throw new Exception(message); });
result.Should().Be(5, "because that's what the handler returned");
}
/// <summary>
/// Creates an instance of <see cref="IBoilerplateContext"/>
/// </summary>
/// <param name="identity">The current identity being used (rights and roles contract requirements/restrictions will apply to this identity)</param>
/// <param name="accessProvider">An access provider for specific types (available through IBoilerplateContext.Open<T>())</param>
/// <param name="permissionsProvider">The provider that will be used for all permissions verification attempts</param>
/// <param name="visibility">The visibility level that this context has. This will affect operations that rely on visibility (e.g. logging).</param>
/// <returns>An instance of <see cref="IBoilerplateContext"/></returns>
public static IBoilerplateContext New(IIdentity identity = null,
ITypeAccessProvider accessProvider = null,
IPermissionsProvider permissionsProvider = null,
Visibility visibility = Visibility.None)
{
var actualIdentity = identity ?? Identity.Default;
var actualTypeAccessProvider = accessProvider ?? TypeAccessProvider.Empty;
var actualPermissionsProvider = permissionsProvider ?? PermissionsProvider.Default;
var functionGenerator = new FunctionGenerator();
//Core providers
var translationProvider = new TranslationProvider(functionGenerator);
var validationProvider = new ValidationProvider(functionGenerator);
var logProvider = new LogProvider(functionGenerator, visibility);
//Set up error handling
var tryCatchProvider = new TryCatchBlockProvider(functionGenerator);
var exceptionHandlerProvider = new ExceptionHandlerProvider(logProvider);
var errorContext = new ImmutableErrorContext(logProvider, tryCatchProvider, exceptionHandlerProvider);
var bundle = new ContextBundle(permissionsProvider: actualPermissionsProvider,
errorContext: errorContext,
translationProvider: translationProvider,
accessProvider: actualTypeAccessProvider,
validationProvider: validationProvider,
logProvider: logProvider,
visibility: visibility);
return(new InitialBoilerplateContext <ContractContext>(bundle, actualIdentity));
}
public void Initialize()
{
this.settings = new FunctionGenerator.PhysicalAssemblySettings("TryCatch", "dll", AppDomain.CurrentDomain.BaseDirectory);
this.functionGenerator = new FunctionGenerator(this.settings);
this.provider = new TryCatchBlockProvider(this.functionGenerator);
}
public void ThrownArgumentNullExceptionWithArgumentExceptionBlockWillNotHandled()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue <Type> .Empty
.Enqueue(typeof(ArgumentNullException));
var handler = new Mock <IExceptionHandler <ArgumentNullException> >(MockBehavior.Strict);
var handlerProvider = new Mock <IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
tryCatch.Try(() => { throw new ArgumentException(message); });
}
public void TryBlockBodyCanReturnResult()
{
var handledExceptionTypes = ImmutableQueue <Type> .Empty
.Enqueue(typeof(Exception));
var handler = new Mock <IResultExceptionHandler <Exception, int> >(MockBehavior.Strict);
var handlerProvider = new Mock <IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var result = tryCatch.Try <int>(() => 5);
result.Should().Be(5, "because that's what the handler returned");
}
public void ThrownExceptionWillBeHandled()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue<Type>.Empty.Enqueue(typeof(Exception));
var retryCount = 0;
var handler = new Mock<IVoidReturnExceptionHandler<Exception>>(MockBehavior.Strict);
handler.Setup(x => x.Handle(It.Is<Exception>(p => p.Message == message)));
handler.Setup(x => x.RetryCount).Returns(retryCount);
var handlerProvider = new Mock<IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler<Exception>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
tryCatch.Try(() => { throw new Exception(message); });
}
public void ExceptionHandlerCanProvokeRetry()
{
var handledExceptionTypes = ImmutableQueue <Type> .Empty
.Enqueue(typeof(Exception));
var retryCount = 5;
var handler = new Mock <IResultExceptionHandler <Exception, int> >(MockBehavior.Strict);
handler.Setup(x => x.RetryCount).Returns(retryCount);
handler.Setup(x => x.RetryIntervalInMilliseconds).Returns(0);
var handlerProvider = new Mock <IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler <Exception, int>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var numberOfTries = 0;
var result = tryCatch.Try <int>(() =>
{
numberOfTries++;
if (numberOfTries < retryCount)
{
throw new Exception();
}
return(5);
});
result.Should().Be(5, "because that's what the handler returned");
numberOfTries.Should().Be(retryCount, "because that's the number of retries requested");
}
public void ThrownArgumentNullExceptionWithArgumentExceptionBlockWillNotHandled()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue<Type>.Empty
.Enqueue(typeof(ArgumentNullException));
var handler = new Mock<IExceptionHandler<ArgumentNullException>>(MockBehavior.Strict);
var handlerProvider = new Mock<IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
tryCatch.Try(() => { throw new ArgumentException(message); });
}
public void ExceptionHandlerCanProvokeRetry()
{
var handledExceptionTypes = ImmutableQueue<Type>.Empty
.Enqueue(typeof(Exception));
var retryCount = 5;
var handler = new Mock<IResultExceptionHandler<Exception, int>>(MockBehavior.Strict);
handler.Setup(x => x.RetryCount).Returns(retryCount);
handler.Setup(x => x.RetryIntervalInMilliseconds).Returns(0);
var handlerProvider = new Mock<IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler<Exception, int>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var numberOfTries = 0;
var result = tryCatch.Try<int>(() =>
{
numberOfTries++;
if (numberOfTries < retryCount)
throw new Exception();
return 5;
});
result.Should().Be(5, "because that's what the handler returned");
numberOfTries.Should().Be(retryCount, "because that's the number of retries requested");
}
public void TryBlockBodyCanReturnResult()
{
var handledExceptionTypes = ImmutableQueue<Type>.Empty
.Enqueue(typeof(Exception));
var handler = new Mock<IResultExceptionHandler<Exception, int>>(MockBehavior.Strict);
var handlerProvider = new Mock<IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var result = tryCatch.Try<int>(() => 5);
result.Should().Be(5, "because that's what the handler returned");
}
public void ExceptionHandlerCanReturnResult()
{
var message = "Error message";
var handledExceptionTypes = ImmutableQueue<Type>.Empty
.Enqueue(typeof(Exception));
var retryCount = 0;
var handler = new Mock<IResultExceptionHandler<Exception, int>>(MockBehavior.Strict);
handler.Setup(x => x.RetryCount).Returns(retryCount);
handler.Setup(x => x.Handle(It.Is<Exception>(p => p.Message == message))).Returns(5);
var handlerProvider = new Mock<IExceptionHandlerProvider>(MockBehavior.Strict);
handlerProvider.Setup(x => x.TryGetHandler<Exception, int>()).Returns(handler.Object);
handlerProvider.Setup(x => x.HandledTypesInCatchOrder).Returns(handledExceptionTypes);
handlerProvider.Setup(x => x.HandledExceptionTypes).Returns(handledExceptionTypes.ToImmutableHashSet());
var generator = new FunctionGenerator();
var provider = new TryCatchBlockProvider(generator);
var tryCatch = provider.GetTryCatchFor(handlerProvider.Object);
var result = tryCatch.Try<int>(() => { throw new Exception(message); });
result.Should().Be(5, "because that's what the handler returned");
}