public void UseAutofacWebApiWillOnlyAddDelegatingHandlerOnce()
        {
            var app = new AppBuilder();
            var configuration = new HttpConfiguration();

            app.UseAutofacWebApi(configuration);
            app.UseAutofacWebApi(configuration);

            Assert.That(configuration.MessageHandlers.OfType<DependencyScopeHandler>().Count(), Is.EqualTo(1));
        }
        public void UseAutofacWebApiAddsDelegatingHandler()
        {
            var app = new AppBuilder();
            var configuration = new HttpConfiguration();

            app.UseAutofacWebApi(configuration);

            Assert.Equal(1, configuration.MessageHandlers.OfType<DependencyScopeHandler>().Count());
        }