Esempio n. 1
0
    public async Task EndMiddleware_DoesNotThrow_IfExceptionHandled()
    {
        // Arrange
        var services               = new ServiceCollection();
        var appBuilder             = new ApplicationBuilder(services.BuildServiceProvider());
        var pipelineBuilderService = new MiddlewareFilterBuilder(new MiddlewareFilterConfigurationProvider())
        {
            ApplicationBuilder = appBuilder,
        };

        Pipeline1.ConfigurePipeline = ab =>
        {
            ab.Use((ctx, next) =>
            {
                return(next(ctx));
            });
        };

        var middlewareFilterFeature = new MiddlewareFilterFeature
        {
            ResourceExecutionDelegate = () =>
            {
                var actionContext = new ActionContext(
                    new DefaultHttpContext(),
                    new RouteData(),
                    new ActionDescriptor(),
                    new ModelStateDictionary());
                var context = new ResourceExecutedContext(actionContext, new List <IFilterMetadata>())
                {
                    Exception        = new InvalidOperationException("Error!!!"),
                    ExceptionHandled = true,
                };

                return(Task.FromResult(context));
            },
        };

        var features = new FeatureCollection();

        features.Set <IMiddlewareFilterFeature>(middlewareFilterFeature);
        var httpContext = new DefaultHttpContext(features);

        // Act
        var pipeline = pipelineBuilderService.GetPipeline(typeof(Pipeline1));

        // Assert
        Assert.NotNull(pipeline);

        // Does not throw.
        await pipeline(httpContext);
    }
Esempio n. 2
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    public Task OnResourceExecutionAsync(ResourceExecutingContext context, ResourceExecutionDelegate next)
    {
        var httpContext = context.HttpContext;

        // Capture the current context into the feature. This will later be used in the end middleware to continue
        // the execution flow to later MVC layers.
        // Example:
        // this filter -> user-middleware1 -> user-middleware2 -> the-end-middleware -> resource filters or model binding
        var feature = new MiddlewareFilterFeature()
        {
            ResourceExecutionDelegate = next,
            ResourceExecutingContext  = context
        };

        httpContext.Features.Set <IMiddlewareFilterFeature>(feature);

        return(_middlewarePipeline(httpContext));
    }
Esempio n. 3
0
    public async Task EndMiddleware_PropagatesFullExceptionInfo_ToEarlierMiddleware()
    {
        // Arrange
        var services               = new ServiceCollection();
        var appBuilder             = new ApplicationBuilder(services.BuildServiceProvider());
        var pipelineBuilderService = new MiddlewareFilterBuilder(new MiddlewareFilterConfigurationProvider())
        {
            ApplicationBuilder = appBuilder,
        };

        Pipeline1.ConfigurePipeline = ab =>
        {
            ab.Use((ctx, next) =>
            {
                return(next(ctx));
            });
        };

        var middlewareFilterFeature = new MiddlewareFilterFeature
        {
            ResourceExecutionDelegate = () =>
            {
                ExceptionDispatchInfo exceptionInfo;
                try
                {
                    // Create a small stack trace.
                    throw new InvalidOperationException("Error!!!");
                }
                catch (Exception ex)
                {
                    exceptionInfo = ExceptionDispatchInfo.Capture(ex);
                }

                var actionContext = new ActionContext(
                    new DefaultHttpContext(),
                    new RouteData(),
                    new ActionDescriptor(),
                    new ModelStateDictionary());
                var context = new ResourceExecutedContext(actionContext, new List <IFilterMetadata>())
                {
                    ExceptionDispatchInfo = exceptionInfo,
                };

                return(Task.FromResult(context));
            },
        };

        var features = new FeatureCollection();

        features.Set <IMiddlewareFilterFeature>(middlewareFilterFeature);
        var httpContext = new DefaultHttpContext(features);

        // Act
        var pipeline = pipelineBuilderService.GetPipeline(typeof(Pipeline1));

        // Assert
        Assert.NotNull(pipeline);

        var exception = await Assert.ThrowsAsync <InvalidOperationException>(() => pipeline(httpContext));

        Assert.Null(exception.InnerException);
        Assert.Equal("Error!!!", exception.Message);

        var stack = exception.StackTrace;

        Assert.Contains(typeof(MiddlewareFilterBuilder).FullName, stack);
        Assert.Contains(typeof(MiddlewareFilterBuilderTest).FullName, stack);
        Assert.Contains(nameof(EndMiddleware_PropagatesFullExceptionInfo_ToEarlierMiddleware), stack);
    }