public void WithActionTargetCalculator_NullArgument_Throws()
{
// Arrange
var builder = new BuffActionBuilder();
// Act and Assert
Assert.Throws <ArgumentNullException>(() => _ = builder.WithActionTargetCalculator(null));
}
/// <summary>
/// Sets the built buff to target a single enemy chosen by the user.
/// </summary>
/// <param name="builder">The buff builder.</param>
/// <param name="userInput">The user input.</param>
public static BuffActionBuilder UserSelectsSingleEnemy(this BuffActionBuilder builder, IUserInput userInput)
{
return(builder.WithActionTargetCalculator(new SingleEnemyActionTargetCalculator(userInput)));
}