public void Get_NewValueWillBeAborted_OldValueIsRead()
{
const int oldValue = 100;
const int newValue = 200;
const int id = 1;
var store = new Store <Record>();
store.Create(new Record(id, oldValue));
var transaction = store.BeginTransaction();
store.Update(new Record(id, newValue), transaction);
var actual = store.Get(id);
store.Abort(transaction);
Assert.AreEqual(oldValue, actual.Balance);
}
public async Task Update_NewValueWillBeAborted_OldValueIsRead()
{
const int firstValue = 200;
const int secondValue = 300;
const int id = 1;
var store = new Store <Record>();
store.Create(new Record(id, 100));
var transaction = store.BeginTransaction();
store.Update(new Record(id, firstValue), transaction);
var secondUpdate = Task.Run(() => store.Update(new Record(id, secondValue)));
var actual = store.Get(id);
store.Abort(transaction);
await secondUpdate;
Assert.AreEqual(secondValue, actual.Balance);
}
