无法检查是否在Mockito中调用了间谍方法

Question

我有一个调用另一个类的discard方法的signout方法。我想测试一下，当signout被调用时，discard被调用一次。我尝试在AuthenticatorService上执行spy，然后检查是否调用了它的discard方法，但得到了错误

Wanted but not invoked:
fakeJWTAuthenticatorService.discard(
    <any>,
    <any>,
    <any>
);

要测试的方法是

def signOutUser = silhouette.SecuredAction.async { implicit request =>

    silhouette.env.authenticatorService.discard(request.authenticator, Ok(Json.toJson(JsonResultSuccess(messagesApi("success.signoutSuccessful")(langs.availables(0)))))) //I want to test that `discard` is called once
  }

我写的测试用例是

  "signOutUser" should {
    "should be called when signout request is received" in {
      val testEnv = new TestEnv(components = components)

      val request = FakeRequest("POST", "ws/users/user-signout").withAuthenticator(testEnv.loginInfo)(testEnv.fakeEnv)
      //spying calls the real method.
      val authenticatorServiceSpy = Mockito.spy(testEnv.fakeSilhouette.env.authenticatorService)
      val response = testEnv.controller.signOutUser(request)
      val responseBody = contentAsJson(response)
      println(s"response is ${responseBody}")
      val result = (responseBody \ "result").get.as[String]
      val message = (responseBody \ "additional-info").get.as[String]

      result mustBe "success"
      verify(authenticatorServiceSpy,times(1)).discard(ArgumentMatchers.any[JWTAuthenticator],ArgumentMatchers.any())(ArgumentMatchers.any())
    }
  }

Answer 1

你能让testEnv.fakeSilhouette.env.authenticatorService本身返回的对象成为一个模拟的对象吗？这将是处理这一问题的理想方法。如果您正在测试类A，您希望使用mock来消除对其他类(如类B)的依赖，这样您就可以将测试的重点放在A的代码上。在本例中，您测试的是signout方法，它似乎依赖于身份验证器服务。您能否注入此依赖项，以便signout方法使用的身份验证器服务是mock而不是spy？