public void IsValidDouble_ValidScores_ReturnsTrue()
{
// Arrange
List <int> validValues = new List <int>
{
2, 4, 16, 20, 30, 40, 50
};
foreach (int val in validValues)
{
// Act
bool result = Dart.IsValidDouble(val);
// Assert
Assert.IsTrue(result, string.Format("{0} was expected to be valid", val));
}
}
public void IsValidDouble_InvalidScores_ReturnsFalse()
{
// Arrange
List <int> validValues = new List <int>
{
0, 1, 17, 21, 31, 39, 41, 49, 51
};
foreach (int val in validValues)
{
// Act
bool result = Dart.IsValidDouble(val);
// Assert
Assert.IsFalse(result, string.Format("{0} was expected to be invalid", val));
}
}
/// <summary>
/// Takes the points scored and updates the current score. Also determines the state of the turn based on result of the calculation.
/// </summary>
/// <param name="points">The points scored by the player.</param>
/// <returns>True if the points are can be applied to the turn, otherwise false.</returns>
public bool RecordPointsScored(int points)
{
// Make sure the state of the turn is appropriate for recording a score.
// Make sure the points provided are valid for one dart.
if (TurnState.InProgress != State || !Dart.IsValidScore(points))
{
return(false);
}
// Update the current score.
CurrentScore -= points;
// Update last points scored
LastPointsScored = points;
// Update Dart's Points
switch (DartsRemaining)
{
case 3:
{
// Is the first dart
FirstDartPoints = points;
break;
}
case 2:
{
// Is the second dart
SecondDartPoints = points;
break;
}
case 1:
{
// Is the third dart
ThirdDartPoints = points;
break;
}
}
// Check for possible win.
if (0 == CurrentScore)
{
DartsRemaining = 0;
State = Dart.IsValidDouble(points) ? TurnState.Win : TurnState.Bust;
return(true);
}
// Check for Bust scenarios.
else if (1 == CurrentScore || 0 > CurrentScore)
{
DartsRemaining = 0;
State = TurnState.Bust;
return(true);
}
// Update the count of remaining darts.
DartsRemaining--;
// Check to see if the turn is done because all darts have been thrown.
if (0 == DartsRemaining)
{
State = TurnState.Done;
}
return(true);
}