lifetest

LifeTest.java

package com.cr;

import static junit.framework.Assert.*;
import org.junit.Test;

public class LifeTest {

    public abstract class Cell {
        public abstract boolean isAliveOnTick();
        public abstract void addNeighbour(Cell neighbour);
    }

    public class AliveCell extends Cell {
        @Override
        public boolean isAliveOnTick() {
            return true;
        }

        @Override
        public void addNeighbour(Cell neighbour) {
        }
    }

    private class DeadCell extends Cell {
        @Override
        public boolean isAliveOnTick() {
            return true;
        }

        @Override
        public void addNeighbour(Cell neighbour) {
        }
    }

    @Test
    public void underPopulationAliveHasOneDeadNeighbourTest() {
        //
        Cell aliveCell = new AliveCell();
        aliveCell.addNeighbour(new DeadCell());

        //
        boolean alive = aliveCell.isAliveOnTick();

        //
        assertFalse(alive);
    }

    @Test
    public void underPopulationAliveHasOneALiveNeighbourTest() {
        //
        Cell aliveCell = new AliveCell();
        aliveCell.addNeighbour(new DeadCell());
        //
        boolean alive = aliveCell.isAliveOnTick();

        //
        assertFalse(alive);
    }

    @Test
    public void underPopulationAliveHasNoNeighbourTest() {
        //
        Cell aliveCell = new AliveCell();

        //
        boolean alive = aliveCell.isAliveOnTick();

        //
        assertFalse(alive);
    }

}