@Context对象在单元测试resteasy时未注入

Question

@Provider
public class LocaleProvider implements ContainerRequestFilter {

    public static final String DEFAULT_LANGUAGE_CODE_VALUE = "en-US";

    @Context
    Dispatcher dispatcher;

    @Override
    public void filter(ContainerRequestContext containerRequestContext) throws IOException {
        List<Locale> acceptableLanguages = containerRequestContext.getAcceptableLanguages();
        if (acceptableLanguages == null || acceptableLanguages.isEmpty()) {
(A)         dispatcher.getDefaultContextObjects().put(Locale.class, new Locale(DEFAULT_LANGUAGE_CODE_VALUE));
            return;
        }

        dispatcher.getDefaultContextObjects().put(Locale.class, acceptableLanguages.get(0));
    }


}

@Path("/")
public class Resource {

    @GET
    public String get(@Context Locale locale) {
        if (locale == null) {
            return "null";
        }

        return locale.getLanguage();
    }
}

public class LocaleProviderTest {
    private Dispatcher dispatcher = MockDispatcherFactory.createDispatcher();

    {
        dispatcher.getRegistry().addResourceFactory(new POJOResourceFactory(Resource.class));
    }

    @Test
    public void shouldHaveDefaultLocaleWhenNoAcceptLanguageHeader() throws URISyntaxException {
        dispatcher.getProviderFactory().registerProvider(LocaleProvider.class);

        MockHttpRequest request = MockHttpRequest.get("/");
        MockHttpResponse response = new MockHttpResponse();
        dispatcher.invoke(request, response);

        assertEquals("en", response.getContentAsString());
    }
}

知道为什么@Context注入在单元测试时不起作用吗？

Answer 1

我根据这个答案找到了一个解决方案。

在我的LocaleProvider中，而不是

 dispatcher.getDefaultContextObjects().put(Locale.class, locale);

我需要用

 ResteasyProviderFactory.pushContext(Locale.class, locale);