public void TestRedBlack( )
{
Card heart = new Card( Suit.Hearts, 1, true, null );
Card spade = new Card( Suit.Spades, 2, true, null );
Card diamond = new Card( Suit.Diamonds, 5, true, null );
Card club = new Card( Suit.Clubs, 12, true, null );
Assert.AreEqual( heart.IsRed( ), true );
Assert.AreEqual( diamond.IsRed( ), true );
Assert.AreEqual( spade.IsBlack( ), true );
Assert.AreEqual( club.IsBlack( ), true );
Assert.AreEqual( heart.IsOppositeColor( spade ), true );
Assert.AreEqual( heart.IsOppositeColor( club ), true );
Assert.AreEqual( heart.IsOppositeColor( diamond ), false );
Assert.AreEqual( heart.IsOppositeColor( heart ), false );
Assert.AreEqual( spade.IsOppositeColor( heart ), true );
Assert.AreEqual( spade.IsOppositeColor( diamond ), true );
Assert.AreEqual( spade.IsOppositeColor( club ), false );
Assert.AreEqual( spade.IsOppositeColor( spade ), false );
Assert.AreEqual( diamond.IsOppositeColor( spade ), true );
Assert.AreEqual( diamond.IsOppositeColor( club ), true );
Assert.AreEqual( diamond.IsOppositeColor( heart ), false );
Assert.AreEqual( diamond.IsOppositeColor( diamond ), false );
Assert.AreEqual( club.IsOppositeColor( heart ), true );
Assert.AreEqual( club.IsOppositeColor( diamond ), true );
Assert.AreEqual( club.IsOppositeColor( spade ), false );
Assert.AreEqual( club.IsOppositeColor( club ), false );
}
/// <summary>
/// Returns true if the color of the current card is the opposite
/// color of the other card. Red and black are considered opposite
/// colors in this regard.
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool IsOppositeColor( Card other )
{
return ( this.IsBlack( ) && other.IsRed( ) )
|| ( this.IsRed( ) && other.IsBlack( ) );
}