如何使用静态字段和注入字段初始化测试

时间:2020-01-26 09:48:57

标签: unit-testing junit powermock

我具有以下需要测试的类结构。基本上,要测试的类需要从基类,静态的final字段初始化和注入的字段中模拟受保护的方法:

public class BaseItemScan  {

    protected String initItem(){
       ...
    }

}

public class ItemScan extends BaseItemScan {

    @Inject
    @Autowired
    ItemScanHelper scanHelper;

    private static final ItemFactory if = ItemFactory.getInstance();
    public void handleItem(){
       super.initItem();
       ...
    }

}

工厂类包含一个构造函数和一个getInstance方法:

public class ItemFactory {
    private static ItemFactory INSTANCE = null;

    public static ItemFactory getInstance() {
        if (INSTANCE == null) {
            throw new IllegalStateException("ItemFactory not initialized!");
        } else {
            return INSTANCE;
        }
    }

    public ItemFactory () {
        if (INSTANCE != null) {
            throw new IllegalStateException("ItemFactory already initialized!");
        } else {
            INSTANCE = this;
        }
    }
}

如何测试handleItem?是否可以使用injectmocks并同时初始化静态字段?由于没有ItemFactory的实例,因此以下代码将失败:

public class ItemScanTest {

    @InjectMocks
    ItemScan itemScan= new ItemScan();

    @Mock
    ItemScanHelper scanHelper;

    @Rule
    public MockitoRule rule = MockitoJUnit.rule();

    @Test
    void testHandleItem() {
        itemScan.handleItem();
    }

}

0 个答案:

没有答案
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