TestOneNumberGame.java

package arpad.kosa;

import org.junit.Assert;
import org.junit.Test;

import java.io.*;

public class TestOneNumberGame {
    private static final String SAMPLE_GAME = "1 1 2 3 5 4 Arpad\n1 1 2 3 5 3 Elod\n2 2 2 2 2 2 Ond";
    private static final String SAMPLE_GAME_NO_ONE = "3 1 2 3 5 4 Arpad\n3 1 2 3 5 3 Elod\n2 2 2 2 2 2 Ond";
    private static final String SAMPLE_GAME_INVALID = "1 3 1 2 3 5 4 Arpad\n3 1 2 3 5 3 Elod\n2 2 2 2 2 2 Ond";

    @Test
    public void sampleRun() throws IOException {
        OneNumberGame sut = new OneNumberGame();
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final StringWriter stringWriter = new StringWriter();
        runGame(sut, baos, stringWriter, 2,SAMPLE_GAME);

        Assert.assertEquals("3. feladat: a jatekosok szama: 3" +
                        "4. feladat: a fordulok szama: 6" +
                        "5. feladat: az elso forduloban volt egyes" +
                        "6. feladat: a legnagyobb tipp: 5" +
                        "7. feladat: Kerem a fordulo sorszamat: [1-6]" +
                        "7. feladat: A nyertes tipp a megadott forduloban: 2" +
                        "8. feladat: A megadott fordulo nyertese: Ond",
                baos.toString("utf-8").replaceAll("[\\n\\r]", ""));
        Assert.assertEquals("Fordulo sorszama: 2Nyertes tipp: 2" +
                "Nyertes players: Ond", stringWriter.toString().replaceAll("[\\n\\r]", ""));
    }

    @Test
    public void sampleRunNoWinner() throws IOException {
        OneNumberGame sut = new OneNumberGame();
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final StringWriter stringWriter = new StringWriter();
        runGame(sut, baos, stringWriter, 3,SAMPLE_GAME);

        Assert.assertEquals("3. feladat: a jatekosok szama: 3" +
                        "4. feladat: a fordulok szama: 6" +
                        "5. feladat: az elso forduloban volt egyes" +
                        "6. feladat: a legnagyobb tipp: 5" +
                        "7. feladat: Kerem a fordulo sorszamat: [1-6]" +
                        "7. feladat: A megadott forduloban nem volt nyertes. " +
                        "A 8. feladat: a megadott forduloban nem volt nyertes. ",
                baos.toString("utf-8").replaceAll("[\\n\\r]", ""));
        Assert.assertEquals("", stringWriter.toString().replaceAll("[\\n\\r]", ""));
    }

    @Test
    public void sampleRunNoOneInFirstTournament() throws IOException {
        OneNumberGame sut = new OneNumberGame();
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final StringWriter stringWriter = new StringWriter();
        runGame(sut, baos, stringWriter, 3,SAMPLE_GAME_NO_ONE);

        Assert.assertEquals("3. feladat: a jatekosok szama: 3" +
                        "4. feladat: a fordulok szama: 6" +
                        "5. feladat: az elso forduloban NEM volt egyes" +
                        "6. feladat: a legnagyobb tipp: 5" +
                        "7. feladat: Kerem a fordulo sorszamat: [1-6]" +
                        "7. feladat: A megadott forduloban nem volt nyertes. " +
                        "A 8. feladat: a megadott forduloban nem volt nyertes. ",
                baos.toString("utf-8").replaceAll("[\\n\\r]", ""));
        Assert.assertEquals("", stringWriter.toString().replaceAll("[\\n\\r]", ""));
    }

    @Test(expected = IllegalArgumentException.class)
    public void invalidGameThrowsException() throws IOException {
        OneNumberGame sut = new OneNumberGame();
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final StringWriter stringWriter = new StringWriter();
        runGame(sut, baos, stringWriter, 3,SAMPLE_GAME_INVALID);
    }

    private void runGame(final OneNumberGame sut,
                         final ByteArrayOutputStream baos,
                         final StringWriter stringWriter,
                         final int index,
                         final String game) throws IOException {
        try (final BufferedReader reader = new BufferedReader(new StringReader(game));
             final BufferedWriter writer = new BufferedWriter(stringWriter);
             final InputStream in = new ByteArrayInputStream((index + "\n").getBytes("utf-8"));
             final PrintStream out = new PrintStream(baos, true, "utf-8");) {
            sut.play(reader, writer, in, out);
        }
    }
}