public Folder GoForward()
{
var folder = History.GoForward();
CurrentPath = folder.Path;
return(folder);
}
public void TestRedoNormal()
{
var hk = new HistoryKeeper <int>(0);
hk.Do(4);
hk.GoBack();
Assert.AreEqual(4, hk.GoForward());
hk.Do(1);
hk.Do(2);
hk.Do(3);
hk.GoBack();
hk.GoBack();
Assert.AreEqual(2, hk.GoForward());
Assert.AreEqual(3, hk.GoForward());
hk.GoBack();
Assert.AreEqual(3, hk.GoForward());
}
public void TestRedoClearsOnDo()
{
var hk = new HistoryKeeper <int>(0);
hk.Do(4);
hk.Do(4);
hk.GoBack();
hk.Do(5);
Assert.Throws <EmptyHistoryException>(() => hk.GoForward());
}
public void TestRedoThrowsExcpOnEmpty()
{
var hk = new HistoryKeeper <int>(0);
Assert.Throws <EmptyHistoryException>(() => hk.GoForward());
hk.Do(4);
Assert.Throws <EmptyHistoryException>(() => hk.GoForward());
hk.GoBack();
hk.GoForward();
Assert.Throws <EmptyHistoryException>(() => hk.GoForward());
hk.Do(1);
hk.Do(2);
hk.Do(3);
hk.GoBack();
hk.GoBack();
Assert.AreEqual(2, hk.GoForward());
Assert.AreEqual(3, hk.GoForward());
hk.GoBack();
Assert.AreEqual(3, hk.GoForward());
}
