public void TestAddAccount()
{
OptionService service = GetService();
var account1 = service.AddAccount("account1", "*****@*****.**");
var appl1 = service.GetAccounts().FirstOrDefault(c => c.Id == account1.Id);
Assert.AreEqual(appl1, account1);
service.RemoveAccount(account1);
var srv = service.GetAccounts().FirstOrDefault(c => c.Id == account1.Id);
Assert.AreEqual(srv, null);
}