public void CheckUserByLogin()
{
ResetData();
List <DBUser> users = new List <DBUser>();
DBUser user1 = new DBUser();
DBUser user2 = new DBUser();
string login = "******";
user1.Login = login;
users.Add(user1);
users.Add(user2);
mockUsers.Setup(a => a.Get()).Returns(users);
var result = UserO.CheckUser(login);
Assert.AreEqual(true, result);
}