public async Task ChangeUserEthnicityWithNullUser_ShouldReturnStatusInvalidUser()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
var repository = new EfDeletableEntityRepository <ApplicationUser>(new ApplicationDbContext(options));
var service = new ModelService.ModelService(repository, null, null, null);
var user1 = await this.CreateUserAsync("*****@*****.**", "Pesho", "Peshev", repository);
var user2 = await this.CreateUserAsync("*****@*****.**", "Vank", "Vanko", repository);
var getUser = await repository.All().Where(x => x.Id == user1).FirstOrDefaultAsync();
var changeTo = Ethnicity.Japanese;
var statusInvalid = "Invalid user";
var changeUserEthnicity = await service.ChangeUserEthnicity(null, changeTo);
var userCurrentEthnicitySecondCheck = getUser.ModelInformation.Ethnicity;
Assert.Equal(statusInvalid, changeUserEthnicity);
Assert.Equal(Ethnicity.Chinese, userCurrentEthnicitySecondCheck);
}
