public void TransactionalStack1()
{
var stack = new TransactionalStack<int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
Assert.IsFalse(stack.IsEmpty);
var t = stack.BeginTransaction();
Assert.AreEqual(3, t.Top);
Assert.AreEqual(3, t.Pop());
Assert.AreEqual(2, t.Pop());
Assert.AreEqual(1, t.Pop());
Assert.AreEqual(3, stack.Top);
Assert.IsTrue(t.IsEmpty);
Assert.IsFalse(stack.IsEmpty);
t.Commit();
Assert.IsTrue(stack.IsEmpty);
Helpers.AssertionHelpers.AssertThrows<Exception>(() => stack.Pop());
Helpers.AssertionHelpers.AssertThrows<Exception>(() => t.Pop());
stack = new TransactionalStack<int>();
t = stack.BeginTransaction();
t.Push(1);
t.Push(2);
t.Push(3);
Assert.IsTrue(stack.IsEmpty);
Assert.IsFalse(t.IsEmpty);
Assert.AreEqual(3, t.Top);
Assert.AreEqual(3, t.Pop());
t.Commit();
Assert.AreEqual(2, stack.Top);
stack = new TransactionalStack<int>();
t = stack.BeginTransaction();
t.Push(1);
t.Push(2);
t.Push(3);
t.Commit();
var verifier = stack.BeginTransaction();
Assert.AreEqual(3, verifier.Pop());
Assert.AreEqual(2, verifier.Pop());
Assert.AreEqual(1, verifier.Pop());
var modifier = stack.BeginTransaction();
modifier.Pop();
modifier.Pop();
modifier.Pop();
modifier.Push(5);
modifier.Push(6);
modifier.Push(7);
modifier.Commit();
Assert.AreEqual(7, stack.Pop());
Assert.AreEqual(6, stack.Pop());
Assert.AreEqual(5, stack.Pop());
}
public void TransactionalStack5()
{
var stack = new TransactionalStack<int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
var t1 = stack.BeginTransaction();
t1.Pop();
t1.Pop();
t1.Push(10);
t1.Push(15);
var list = t1.AsEnumerable().ToList();
Assert.AreEqual(15, list[0]);
Assert.AreEqual(10, list[1]);
Assert.AreEqual(1, list[2]);
t1.Commit();
var list2 = stack.AsEnumerable().ToList();
Assert.AreEqual(15, list2[0]);
Assert.AreEqual(10, list2[1]);
Assert.AreEqual(1, list2[2]);
}
public void TransactionalStack3()
{
var stack = new TransactionalStack<int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
var t1 = stack.BeginTransaction();
var t2 = stack.BeginTransaction();
t1.Push(4);
t2.Push(5);
t1.Commit();
AssertionHelpers.AssertThrows<Psimulex.Core.Exceptions.InvalidTransactionException>(() => t2.Commit());
Assert.AreEqual(4, stack.Pop());
Assert.AreEqual(3, stack.Pop());
Assert.AreEqual(2, stack.Pop());
Assert.AreEqual(1, stack.Pop());
var transactions = new List<StackTransaction<int>>();
for (int i = 0; i < 100; ++i)
{
transactions.Add(stack.BeginTransaction());
}
transactions[22].Push(9);
transactions[22].Commit();
transactions.TrueForAll(t => t.Status == TransactionStates.Invalid || t.Status == TransactionStates.Committed);
transactions.ForEach(t => AssertionHelpers.AssertThrows<Psimulex.Core.Exceptions.InvalidTransactionException>(() => t.Commit()));
}
public void TransactionalStack4()
{
var stack = new TransactionalStack<int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
var t1 = stack.BeginTransaction();
t1.Pop();
t1.Pop();
t1.Push(10);
t1.Push(15);
Assert.AreEqual(15, t1.Top);
Assert.AreEqual(3, stack.Top);
t1.Commit();
Assert.AreEqual(15, stack.Pop());
Assert.AreEqual(10, stack.Pop());
Assert.AreEqual(1, stack.Pop());
}
public void TransactionalStack2()
{
var stack = new TransactionalStack<int>();
for (int i = 0; i < 1000; ++i)
{
stack.Push(i);
}
for (int i = 0; i < 100; ++i)
{
var t = stack.BeginTransaction();
t.Pop();
t.Push(-1);
t.Commit();
Assert.AreEqual(-1, stack.Top);
t = stack.BeginTransaction();
t.Pop();
t.Commit();
Assert.AreEqual(998 - i, stack.Top);
t = stack.BeginTransaction();
t.Clear();
Assert.IsTrue(t.IsEmpty);
Assert.IsFalse(stack.IsEmpty);
t.Rollback();
Assert.IsFalse(t.IsEmpty);
Assert.IsFalse(stack.IsEmpty);
Assert.AreEqual(998 - i, t.Top);
Assert.AreEqual(998 - i, stack.Top);
}
var ts = stack.BeginTransaction();
ts.Clear();
ts.Commit();
Assert.IsTrue(ts.IsEmpty);
Assert.IsTrue(stack.IsEmpty);
}