Mockito 模拟未调用

Question

我有一些java基类，里面有1个方法：

public class SB {

    @SneakyThrows
    public Document downloadHtml(String url) {
        return Jsoup.connect(url)
                .userAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 Edg/127.0.2651.98")
                .get();
    }
}

我还有另一个类扩展 SB 并实现一些接口：

public class TScrapperProvider extends SB implements Scrapper {

    private static final Logger logger = LoggerFactory.getLogger(TelemagazynScrapperProvider.class);


    @Override
    public List<Channel> getAllChannels() {
        Document doc = downloadHtml("URL");
        ...
    }

    @Override
    public List<TVShow> getChannelScheduleForDate(LocalDate date, Channel channel) {
        Document doc = downloadHtml("URL");
        ....
    }
}

然后我有一个单元测试类，我想在其中测试

TScrapperProvider

中的两种方法，为了做到这一点，我想模拟 SB 中的

downloadHtml

方法：

    @Test
    public void testGetAllChannels() {
        SB sBase = mock(SB.class);
        when(sBase.downloadHtml("https://example.html")).thenReturn(createMockChannelsPage());

        Scrapper scrapper = new TScrapperProvider();
        List<Channel> channels = scrapper.getAllChannels();
        verify(sBase, times(1)).downloadHtml("https://example.html");
        assertEquals(createExpectedChannels(), channels);
    }

不幸的是，

verify

失败并出现

Actually, there were zero interactions with this mock.

，我在结果中看到结果来自真实页面，而不是来自我的模拟。 我怎样才能调用模拟而不是真正的

downloadHtml

方法？

Answer 1

您需要使用

spy

。

    @Test
    public void testGetAllChannels() {
        TScrapperProvider scrapper = spy(new TScrapperProvider());
        when(sBase.downloadHtml("https://example.html")).thenReturn(createMockChannelsPage());
        List<Channel> channels = scrapper.getAllChannels();
        verify(sBase, times(1)).downloadHtml("https://example.html");
        assertEquals(createExpectedChannels(), channels);
    }