public void PasswordRegexTest_TestRegex_ReturnsFalse()
{
var password = "******";
var passwordRegex = new PasswordRegex();
var result = passwordRegex.IsValid(password);
Assert.AreEqual(false, result);
}
/// <summary>
/// Validates that a password meets minimum requirements.
/// </summary>
/// <param name="password"></param>
/// <param name="results"></param>
/// <returns></returns>
public virtual bool ValidatePassword(string password, ExecutionResults results)
{
if (!PasswordRegex.IsMatch(password))
{
results.AppendError(PasswordErrorMessage);
return(false);
}
return(true);
}
public override async Task <string> Part1Async(string input)
{
var intMachine = new SynchronousIntMachine(input);
var(rooms, collectedItems) = await DiscoverRoomsAndGatherItemsAsync(intMachine);
var hullBreachRoom = rooms[HullBreach];
var securityCheckpointRoom = rooms[SecurityCheckpoint];
var pathToSecurityCheck = GetPath(hullBreachRoom, securityCheckpointRoom);
await FollowPath(intMachine, pathToSecurityCheck);
var nextDirection = securityCheckpointRoom.Doors.Keys.Single(d => d != InverseDirections[pathToSecurityCheck.Last()]);
var inventories = collectedItems
.Subsets()
.Select(x => x.OrderBy(y => y).ToList())
.Append(new List <string>())
.OrderBy(x => Math.Abs(collectedItems.Count / 2 - x.Count))
.ToList();
var currentInventory = inventories.First();
string password = null;
foreach (var(newInventory, inventoryIndex) in inventories.WithIndex())
{
Progress.Percentage = inventoryIndex * 100.0 / inventories.Count * 4;
if (!currentInventory.SequenceEqual(newInventory))
{
var stuffToDrop = currentInventory.Except(newInventory).ToList();
var stuffToTake = newInventory.Except(currentInventory).ToList();
foreach (var stuff in stuffToDrop)
{
_ = await RunMachineAsync(intMachine, string.Concat("drop ", stuff));
}
foreach (var stuff in stuffToTake)
{
_ = await RunMachineAsync(intMachine, string.Concat("take ", stuff));
}
}
currentInventory = newInventory;
var response = await RunMachineAsync(intMachine, nextDirection);
var roomNames = RoomNameRegex.Matches(response).OfType <Match>().Select(x => x.Groups[1].Value).ToList();
if (roomNames.Count == 1)
{
password = PasswordRegex.Match(response).Value;
break;
}
}
return(password);
}
public bool IsValid(string password)
{
var passwordRegex = new PasswordRegex();
return(passwordRegex.IsValid(password));
}
