public async Task GetAgeAsyncMustNotThrow()
        {
            _contextBuilder
            .WithData(new MyData {
                Age = 10, Key = "ac_32_576259321"
            })
            .WithData(new MyOtherData {
                OtherAge = 10, OtherKey = "ac_32_576259321"
            })
            .Build();

            await ExceptionAssert.DoesNotThrowAsync(() => _target.GetAgeAsync("FortyTwo"),
                                                    $"Expected '{nameof(MyApplicationService.GetAgeAsync)}' not to throw").ConfigureAwait(false);
        }