public async Task IsUserValid()
{
var validUser = fillTestDbHelper.Users.FirstOrDefault(user => !user.Deleted && user.Confirmed.Value);
var invalidUser = fillTestDbHelper.Users.FirstOrDefault(user => !user.Confirmed.Value || user.Deleted);
Assert.True(await loadUsersService.IsUserValidAsync(validUser.Id));
Assert.False(await loadUsersService.IsUserValidAsync(invalidUser.Id));
}