java - mockito 不匹配任何(类型)方法

Question

我测试这段代码:

        PublisherCallbackWithLog publisherCallback = new PublisherCallbackWithLog<String>();

        for (SdkRequest.SdkRequest sdkRequest : SdkRequestsList.getRequestList()) {
            final String s = TextFormat.printToUnicodeString(sdkRequest);
            customPublisher.publish(s, publisherCallback);
        }

在我的测试中我有这一行:

    verify(customPublisher, times(1)).publish(argThat(eqWithoutRequestId(sdkRequest)), any(PublisherCallbackWithLog.class));

但是我得到一个错误，似乎是关于第二个参数。

Argument(s) are different! Wanted:
customPublisher.publish(
    ,
    <any>
);
-> at com.w.sdkService.servlets.SdkPollerServlet_PublishTest.readFromSpreadsheet3Rows_shouldPublish2Times(SdkPollerServlet_PublishTest.java:75)
Actual invocation has different arguments:
customPublisher.publish(
    "partner {
  display_name: "WTest"
  android_pkg_name: "com.example.eliran.myapplication"
  sharing_mode: DATA
}
requestId: "3a7458b6-edc0-4d4e-b52e-d2a3847bef0b"
requestType: REMOVE
",
    com.w.sdkService.services.callback.PublisherCallbackWithLog@56f6d40b
);
-> at com.w.sdkService.servlets.SdkPollerServlet.publishAddPartnersRequests(SdkPollerServlet.java:101)

Comparison Failure:  <Click to see difference>

Argument(s) are different! Wanted:
customPublisher.publish(
    ,
    <any>
);
-> at com.w.sdkService.servlets.SdkPollerServlet_PublishTest.readFromSpreadsheet3Rows_shouldPublish2Times(SdkPollerServlet_PublishTest.java:75)
Actual invocation has different arguments:
customPublisher.publish(
    "partner {
  display_name: "WTest"
  android_pkg_name: "com.example.eliran.myapplication"
  sharing_mode: DATA
}
requestId: "3a7458b6-edc0-4d4e-b52e-d2a3847bef0b"
requestType: REMOVE
",
    com.w.sdkService.services.callback.PublisherCallbackWithLog@56f6d40b
);
-> at com.w.sdkService.servlets.SdkPollerServlet.publishAddPartnersRequests(SdkPollerServlet.java:101)

否则我应该如何验证调用？

虽然调试它永远不会到达我的 matchesSafely 方法:

public class RequestMatcher extends TypeSafeMatcher<WazeSdkRequest.SdkRequest> {
    private WazeSdkRequest.SdkRequest expectedRequest;

    private RequestMatcher(final SdkRequest.SdkRequest request) {
        this.expectedRequest = request;
    }

    @Override
    protected boolean matchesSafely(final SdkRequest.SdkRequest sentRequest) {
        boolean answer = SdkRequest.newBuilder(sentRequest).clearRequestId().build()
                .equals(SdkRequest.newBuilder(expectedRequest).clearRequestId().build());

        return answer;
    }


    public static RequestMatcher eqWithoutRequestId(final SdkRequest request) {
        return new RequestMatcher(request);
    }

    @Override
    public void describeTo(final Description description) {

    }

Answer 1

我相信这是因为您在 RequestMatcher 上的通用类型是 WazeSdkRequest.SdkRequest，而您调用的方法 (customPublisher.publish()) 需要一个字符串。

如果您查看 TypeSafeMatcher.java 中的代码，您会发现它首先进行类型检查以查看是否应该继续执行 matchesSafely 方法:

    public final boolean matches(Object item) {
        return item != null
            && expectedType.isInstance(item)
            && matchesSafely((T) item);
    }

在这种情况下，我希望 expectedType.isInstance(item) 返回 false，这会导致您的测试失败。

此外，如果您实际实现了 describeTo 并覆盖了 describerMismatchSafely，您可能能够更好地调试它。