fjalvarezdd / java-tdd-katas

import org.junit.Before;

import org.junit.Test;

import static org.hamcrest.core.Is.*;

import static org.hamcrest.core.IsEqual.*;

import static org.junit.Assert.*;

public class DartsTest {

    private Darts d;

    @Before

    public void setUpGame() {

        d = new Darts();

    }

    @Test

    public void aGameShouldStartAt301() {

        assertThat(d.score(), equalTo(301));

        assertThat(d.isFinished(), is(false));

    }

    @Test

    public void shouldCountADoubleThrow() {

        d.dart(20, Darts.Multiplier.DOUBLE);

    }

    @Test

    public void shouldCountAtTripleThrow() {

        d.dart(30, Darts.Multiplier.TRIPLE);

    }

    @Test

    public void shouldCountTheTurn() {

        d.dart(1);

        assertThat(d.getTurn(), is(1));

        assertThat(d.dartsLeft(), is(2));

        d.dart(1);

        assertThat(d.getTurn(), is(1));

        assertThat(d.dartsLeft(), is(1));

        d.dart(1);

        assertThat(d.getTurn(), is(2));

        assertThat(d.dartsLeft(), is(3));

    }

    @Test

    public void shouldGoBustReaching1() {

        // Lets reach 121

        for (int i=0; i<3; i++) {

            d.dart(20, Darts.Multiplier.TRIPLE);

        }

        d.dart(20, Darts.Multiplier.TRIPLE);

        d.dart(20, Darts.Multiplier.TRIPLE); // 1!

        assertEquals(121, d.score());

        assertEquals(3, d.getTurn());

        assertEquals(3, d.dartsLeft());

    }

    @Test

    public void shouldGoBustAboveZero() {

        // Lets reach 121

        for (int i=0; i<3; i++) {

            d.dart(20, Darts.Multiplier.TRIPLE);

        }

        d.dart(15, Darts.Multiplier.TRIPLE); // 76

        d.dart(15, Darts.Multiplier.TRIPLE); // 31

        d.dart(20, Darts.Multiplier.TRIPLE); // -29! Gone

        assertEquals(121, d.score());

        assertEquals(3, d.getTurn());

        assertEquals(3, d.dartsLeft());

    }

    @Test

    public void shouldCompleteAGameWithADouble() {

        // Lets reach 121

        for (int i=0; i<3; i++) {

            d.dart(20, Darts.Multiplier.TRIPLE);

        }

        d.dart(17, Darts.Multiplier.TRIPLE); // 70

        d.dart(20, Darts.Multiplier.TRIPLE); // 10

        d.dart(5, Darts.Multiplier.DOUBLE); // 0

        assertTrue(d.isFinished());

    }

}