public async Task Test_StartupException()
        {
            bool isDisposed = false;

            AssemblyUtils.SetEntryAssembly(GetType().Assembly);

            var applicationConfig = ApplicationConfigBuilder
                                    .Create()
                                    .WithApplicationName(ApplicationName)
                                    .WithScanDirectories(
                TestAssemblyDirectories
                )
                                    // Add all file starting with Dapplo and ending on .dll
                                    .WithAssemblyPatterns("Dapplo*")
                                    .BuildApplicationConfig();

            using (var bootstrapper = new ApplicationBootstrapper(applicationConfig))
            {
                bootstrapper.Configure();

                // Makes the startup break
                bootstrapper.Builder.Register(context => true);

                bootstrapper.RegisterForDisposal(SimpleDisposable.Create(() => isDisposed = true));

                // Initialize, so we can export
                Assert.True(await bootstrapper.InitializeAsync().ConfigureAwait(false), "Not initialized");

                // Start the composition, and IStartupActions
                await Assert.ThrowsAsync <NotSupportedException>(async() => await bootstrapper.StartupAsync().ConfigureAwait(false));
            }
            // Dispose automatically calls IShutdownActions
            Assert.True(isDisposed);
        }