一个类的Junit测试需要其他类的对象

Question

我有一个这样定义的类：

public class Monster {
    public static final int ARENA_SIZE = 480;

    public int health; //can be negative since it will then be removed
    public int speed;
    public int counter;
    public int x; //current position
    public int y; //current position
    public mapObject next;
    public void nextAlgorithm(mapObject[][] map) {
        aNode[][] aNodeMap = newANodeMap(map); //1. create a new aNodeMap

        PriorityQueue<aNode> pq = newPriorityMap(aNodeMap[this.x][this.y]); //2. create a new priority queue with starting point added
        aNode current;

        while (pq.isEmpty() == false) {
            current = pq.poll();
            if (endPointReached(current.x, current.y)) //3. Is the end point reached?
                break;
            aNode[] neighbours = findNeighbour(current.x, current.y, aNodeMap); //4. The end point isn't reached, find me the neigbours
            for (aNode neighbour : neighbours) //5. process all my neighbours
                processNeighbour(current, neighbour, pq);
        }
        next = updateNext(aNodeMap[ARENA_SIZE - 1][ARENA_SIZE - 1], this.x, this.y); //6. Update my next after all these work
    }

简单来说，有一个算法需要其他类的输入，mapObject，也是我自己写的另一个包。

我的问题是，除了

import MapObject.*;

在 junit 中，我可以在其中初始化一个夹具

@Before

有没有更好的方法？

Answer 1

在测试用例本身而不是在@Before 方法中创建输入对象（即mapObject[][]）可能更好。这允许您使用不同的输入对象创建多个测试用例。

即

@Test void testWithSpecificArrayConfiguration1() {
    mapObject[][] objectConfig1 = createConfig1();
    testMonster.nextAlgorith(objectConfig1);
    // verification steps for config 1
}
@Test void testWithSpecificArrayConfiguration2() {
    mapObject[][] objectConfig2 = createConfig2();
    testMonster.nextAlgorith(objectConfig2);
    // verification steps for config 2
}

请注意，输入是mapObject 感觉不对，但实际算法适用于aNode[][]；但是如果不知道代码的上下文就很难判断。