public void TestMethod_signIn()
{
Setup();
db.registerNewUserDB(admin);
store.Roles = new TreeNode <Role>(new Role(store, admin));
store.RolesDictionary = new Dictionary <int, TreeNode <Role> >();
TradingSystem sysTest = new TradingSystem(null, null);
sysTest.Stores.Add(store.Id, store);
db.signIn(admin.Id, sysTest);
Assert.AreEqual(true, sysTest.Users.ContainsKey(admin.Id));
}