public void ShouldThrowIfFinished()
{
TransactionalHashTable <int, string> transactHashTable = new TransactionalHashTable <int, string>();
Transaction <int, string> transaction = transactHashTable.BeginTransaction();
transactHashTable.Commit(transaction); // The transaction is finished now.
//transaction.Execute(); // Can also be used for the same result.
//transaction.Dispose(); // Can also be used for the same result.
Assert.Catch <InvalidOperationException>(() => transactHashTable.Commit(transaction));
Assert.Catch <InvalidOperationException>(() => transactHashTable.RollbackTransation(transaction));
Assert.Catch <InvalidOperationException>(() => transaction.Add(1, "hello"));
Assert.Catch <InvalidOperationException>(() => transaction.Get(1));
Assert.Catch <InvalidOperationException>(() => transaction.TryGet(1, out _));
Assert.Catch <InvalidOperationException>(() => transaction.Remove(1));
}
public void ShouldAddItemsOnCommit()
{
TransactionalHashTable <int, string> transactHashTable = new TransactionalHashTable <int, string>();
List <(int key, string value)> itemsToAdd = new List <(int key, string value)>()
{
(1, "lorem"), (2, "ipsum"), (3, "dolor ")
};
using (Transaction <int, string> transaction = transactHashTable.BeginTransaction())
{
foreach (var(key, value) in itemsToAdd)
{
transaction.Add(key, value);
}
Assert.True(transactHashTable.Count == 0); // Items are not in hashTable, until they are commited.
}
Assert.True(transactHashTable.Count == itemsToAdd.Count);
}
public void ShouldNotAddItemsOnRollback()
{
TransactionalHashTable <int, string> transactHashTable = new TransactionalHashTable <int, string>();
List <(int key, string value)> itemsToAdd = new List <(int key, string value)>()
{
(1, "lorem"), (2, "ipsum"), (3, "dolor ")
};
Transaction <int, string> transaction = transactHashTable.BeginTransaction();
foreach (var(key, value) in itemsToAdd)
{
transaction.Add(key, value);
}
Assert.False(transactHashTable.Count == itemsToAdd.Count);
transactHashTable.RollbackTransation(transaction);
// transaction.RollBack(); // Can also be used for the same result.
Assert.True(transaction.ChangesCount == 0); // Transaction is reset.
}
