public static void RunAsync <THandler, TInput, TOutput>() where THandler : IAsyncHandler <TInput, TOutput>, new()
{
AppDomain.CurrentDomain.UnhandledException += HandleException;
var uae = Environment.GetEnvironmentVariable("UNWRAP_AGGREGATE_EXCEPTIONS");
var unwrapAggregateExceptions = uae != null && (uae == "1" || uae.ToLower() == "true");
IHandlerRunner runner = new AsyncHandlerRunner <THandler, TInput, TOutput>(unwrapAggregateExceptions);
Run(runner);
}
public void Handle_CallsHandlerHandleWithInputAndContext_AndReturnsOutput()
{
// arrange
var runner = new AsyncHandlerRunner <TestHandler, string, string>(true);
var handler = A.Fake <TestHandler>();
var context = A.Fake <ILambdaContext>();
runner.GetType().GetField("Handler", BindingFlags.NonPublic | BindingFlags.Instance)
.SetValue(runner, handler);
A.CallTo(() => handler.Handle("input", context)).Returns("output");
// act
runner.Handle("input", context);
// assert
A.CallTo(() => handler.Handle("input", context)).MustHaveHappened();
}
public void Handle_DoesNotUnwrapAggregateExceptions_WhenFlagIsFalse()
{
// arrange
var runner = new AsyncHandlerRunner <TestHandler, string, string>(false);
var handler = A.Fake <TestHandler>();
var context = A.Fake <ILambdaContext>();
runner.GetType().GetField("Handler", BindingFlags.NonPublic | BindingFlags.Instance)
.SetValue(runner, handler);
A.CallTo(() => handler.Handle(A <string> .Ignored, A <ILambdaContext> .Ignored))
.ThrowsAsync(new DivideByZeroException());
// act
var ex = Record.Exception(() => runner.Handle(string.Empty, context));
// assert
ex.ShouldBeOfType <AggregateException>();
}
