public async Task SomethingAsync_Return_13()
        {
            var sut = new AsynchronousSuccess();

            var results = await sut.SomethingAsync();

            results.Should().Be(13);
        }
        public void SomethingAsync_Return_13_AsyncContext()
        {
            var sut = new AsynchronousSuccess();

            AsyncContext.Run(async() =>
            {
                var results = await sut.SomethingAsync();

                results.Should().Be(13);
            });
        }