first commit

Tennis/java/defactored1/TennisGame.java

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+package defactored1;
+
+public class TennisGame {
+	
+	private int m_score1 = 0;
+	private int m_score2 = 0;
+	private String player1Name;
+	private String player2Name;
+
+	public TennisGame(String player1Name, String player2Name) {
+		this.player1Name = player1Name;
+		this.player2Name = player2Name;
+	}
+
+	public void wonPoint(String playerName) {
+		if (playerName == "player1")
+			m_score1 += 1;
+		else
+			m_score2 += 1;
+	}
+
+	public String getScore() {
+		String score = "";
+		int tempScore=0;
+		if (m_score1==m_score2)
+		{
+			switch (m_score1)
+			{
+				case 0:
+						score = "Love-All";
+					break;
+				case 1:
+						score = "Fifteen-All";
+					break;
+				case 2:
+						score = "Thirty-All";
+					break;
+				case 3:
+						score = "Forty-All";
+					break;
+				default:
+						score = "Deuce";
+					break;
+				
+			}
+		}
+		else if (m_score1>=4 || m_score2>=4)
+		{
+			int minusResult = m_score1-m_score2;
+			if (minusResult==1) score ="Advantage player1";
+			else if (minusResult ==-1) score ="Advantage player2";
+			else if (minusResult>=2) score = "Win for player1";
+			else score ="Win for player2";
+		}
+		else
+		{
+			for (int i=1; i<3; i++)
+			{
+				if (i==1) tempScore = m_score1;
+				else { score+="-"; tempScore = m_score2;}
+				switch(tempScore)
+				{
+					case 0:
+						score+="Love";
+						break;
+					case 1:
+						score+="Fifteen";
+						break;
+					case 2:
+						score+="Thirty";
+						break;
+					case 3:
+						score+="Forty";
+						break;
+				}
+			}
+		}
+		return score;
+	}
+}

Tennis/java/defactored1/TennisTest.java

@@ -0,0 +1,94 @@
+package defactored1;
+
+import static org.junit.Assert.*;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+@RunWith(Parameterized.class)
+public class TennisTest {
+
+	private int player1Score;
+	private int player2Score;
+	private String expectedScore;
+
+	public TennisTest(int player1Score, int player2Score, String expectedScore) {
+		this.player1Score = player1Score;
+		this.player2Score = player2Score;
+		this.expectedScore = expectedScore;
+	}
+	
+	@Parameters
+	public static Collection<Object[]> getAllScores() {
+		return Arrays.asList(new Object[][] {
+				{ 0, 0, "Love-All" },
+				{ 1, 1, "Fifteen-All" },
+				{ 2, 2, "Thirty-All"},
+				{ 3, 3, "Forty-All"},
+				{ 4, 4, "Deuce"},
+				
+				{ 1, 0, "Fifteen-Love"},
+				{ 0, 1, "Love-Fifteen"},
+				{ 2, 0, "Thirty-Love"},
+				{ 0, 2, "Love-Thirty"},
+				{ 3, 0, "Forty-Love"},
+				{ 0, 3, "Love-Forty"},
+				{ 4, 0, "Win for player1"},
+				{ 0, 4, "Win for player2"},
+				
+				{ 2, 1, "Thirty-Fifteen"},
+				{ 1, 2, "Fifteen-Thirty"},
+				{ 3, 1, "Forty-Fifteen"},
+				{ 1, 3, "Fifteen-Forty"},
+				{ 4, 1, "Win for player1"},
+				{ 1, 4, "Win for player2"},
+
+				{ 3, 2, "Forty-Thirty"},
+				{ 2, 3, "Thirty-Forty"},
+				{ 4, 2, "Win for player1"},
+				{ 2, 4, "Win for player2"},
+				
+				{ 4, 3, "Advantage player1"},
+				{ 3, 4, "Advantage player2"},
+				{ 5, 4, "Advantage player1"},
+				{ 4, 5, "Advantage player2"},
+				{ 15, 14, "Advantage player1"},
+				{ 14, 15, "Advantage player2"},
+
+				{ 6, 4, "Win for player1"},
+				{ 4, 6, "Win for player2"},
+				{ 16, 14, "Win for player1"},
+				{ 14, 16, "Win for player2"},
+		});
+	}
+
+	@Test
+	public void checkAllScores() {
+		TennisGame game = new TennisGame("player1", "player2");
+		for (int i = 0; i < this.player1Score; i++) 
+			game.wonPoint("player1");
+		for (int i = 0; i < this.player2Score; i++) 
+			game.wonPoint("player2");
+		assertEquals(this.expectedScore, game.getScore());
+	}
+	
+	@Test
+	public void realisticGame() {
+		TennisGame game = new TennisGame("player1", "player2");
+		String[] points =          {"player1", "player1", "player2", "player2", "player1", "player1"};
+		String[] expected_scores = {"Fifteen-Love", "Thirty-Love", "Thirty-Fifteen", "Thirty-All", "Forty-Thirty", "Win for player1"};
+		for (int i = 0; i < 6; i++) {
+			game.wonPoint(points[i]);
+			assertEquals(expected_scores[i], game.getScore());
+		}
+		
+		
+	}
+
+}