public async void VersionSpecial_Update_length()
        {
            Mock <INuGetPackageRepository> nuGetPackageRepository = new Mock <INuGetPackageRepository>();

            nuGetPackageRepository.Setup(x => x.Get(It.IsAny <string>())).Returns(Task.FromResult(new NuGetPackage()));

            var validator = new ApiNuGetPackageRequestModelValidator(nuGetPackageRepository.Object);
            await validator.ValidateUpdateAsync(default(string), new ApiNuGetPackageRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.VersionSpecial, new string('A', 251));
        }
        public async void PackageId_Create_length()
        {
            Mock <INuGetPackageRepository> nuGetPackageRepository = new Mock <INuGetPackageRepository>();

            nuGetPackageRepository.Setup(x => x.Get(It.IsAny <string>())).Returns(Task.FromResult(new NuGetPackage()));

            var validator = new ApiNuGetPackageRequestModelValidator(nuGetPackageRepository.Object);
            await validator.ValidateCreateAsync(new ApiNuGetPackageRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.PackageId, new string('A', 101));
        }