public async Task CreateRoleAsyncTest()
{
var context = EssayCompetitionContextInMemoryFactory.InitializeContext();
var roleName = "Ninja";
var roleViewModel = new CreateViewModel()
{
Name = roleName
};
var roleRepository = new EfDeletableEntityRepository <ApplicationRole>(context);
var service = new RolesService(roleRepository);
await service.CreateRoleAsync <CreateViewModel>(roleViewModel.ToQueryable());
Assert.True(roleRepository.All().Any(x => x.Name == roleName), "CreateRoleAsync method does not work correctly");
}