Question

我试图在进样器中创建用于测试api。

The test binding are as follows
  class ApiTestModule extends AbstractModule {
    def configure(): Unit = {
      bind(classOf[Client]).in(classOf[Singleton])
      bind(classOf[ApiGetController]).in(classOf[Singleton])
      bind(classOf[ApiPostController]).in(classOf[Singleton])
      bind(classOf[IndexService]).in(classOf[Singleton])
      bind(classOf[PanelService]).in(classOf[Singleton])
      bind(classOf[EntitiesService]).in(classOf[Singleton])
      bind(classOf[AuthenticatedPublicApiAction]).in(classOf[Singleton])
      bind(classOf[RateLimitedApiAction]).in(classOf[Singleton])
      bind(classOf[ApiKeyValidatorUpdaterThread]).in(classOf[Singleton])
      bind(classOf[ApiKeyValidatorService]).in(classOf[Singleton])
      bind(classOf[ArticleFrontService]).in(classOf[Singleton])

    }

我在代码中创建了te注入器

 val testModule = new AbstractModule() {
    def configure() = {
      new ApiTestModule().configure(binder())
    }
  }
  val injector = new GuiceApplicationBuilder()
    .overrides(testModule).injector()

  val apiGetController = injector.instanceOf(classOf[ApiGetController])

我收到以下错误

异常或错误导致运行中止：无法创建进样器，请参阅以下错误：

1) No implementation for org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient) was bound.
  while locating org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient)
    for parameter 2 at com.newswhip.api.service.ApiArticleService.<init>(ApiArticleService.scala:19)
  while locating com.newswhip.api.service.ApiArticleService
    for parameter 1 at com.newswhip.api.controllers.ApiGetController.<init>(ApiGetController.scala:57)
  at com.newswhip.spike.inject.TestBindings$ApiTestModule.configure(TestBindings.scala:133) (via modules: com.google.inject.util.Modules$OverrideModule -> com.newswhip.api.service.ApiArticleServiceTest$$anon$1)

2) No implementation for org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient) was bound.
  while locating org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient)
    for parameter 2 at com.newswhip.api.service.ApiArticleService.<init>(ApiArticleService.scala:19)
  while locating com.newswhip.api.service.ApiArticleService
    for parameter 1 at com.newswhip.api.controllers.ApiPostController.<init>(ApiPostController.scala:17)
  at com.newswhip.spike.inject.TestBindings$ApiTestModule.configure(TestBindings.scala:134) (via modules: com.google.inject.util.Modules$OverrideModule -> com.newswhip.api.service.ApiArticleServiceTest$$anon$1)

3) No implementation for org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient) was bound.
  while locating org.elasticsearch.client.Client annotated with @com.google.inject.name.Named(value=SpikeClient)
    for parameter 0 at com.newswhip.spike.article.service.SpikeEsQueryBuilder.<init>(SpikeEsQueryBuilder.scala:20)
  while locating com.newswhip.spike.article.service.SpikeEsQueryBuilder
    for parameter 2 at com.newswhip.spike.article.service.EntitiesService.<init>(EntitiesService.scala:30)
  at com.newswhip.spike.inject.TestBindings$ApiTestModule.configure(TestBindings.scala:137) (via modules: com.google.inject.util.Modules$OverrideModule -> com.newswhip.api.service.ApiArticleServiceTest$$anon$1)

4) No implementation for org.elasticsearch.client.Client was bound.
  at com.newswhip.spike.inject.TestBindings$ApiTestModule.configure(TestBindings.scala:131) (via modules: com.google.inject.util.Modules$OverrideModule -> com.newswhip.api.service.ApiArticleServiceTest$$anon$1)

5) No implementation for play.api.db.Database was bound.
  at com.newswhip.spike.inject.TestBindings$ApiTestModule.configure(TestBindings.scala:132) (via modules: com.google.inject.util.Modules$OverrideModule -> com.newswhip.api.service.ApiArticleServiceTest$$anon$1

）

我认为问题出在我的绑定模块中，但我无法弄清问题是什么。任何帮助将不胜感激。

Answer 1

Mockito可用于测试。我想你可以试试下面的注射用guice进行测试

class TestModule extends AbstractModule with MockitoSugar {

  val mockClient: Client = mock[Client]

  override def configure(): Unit = {
    bind(classOf[Client]).toInstance(mockClient)
  }

}

很容易进行嘲弄和抄袭。如果您想要模拟或存根测试，您可以像这样使用

doReturn("dummyResult").when(testModule.mockClient).someMethod()

Answer 2

看看Guice's BoundFields。然后你可以创建一个这样的测试：

public class TestFoo extends WordSpec with BeforeAndAfterEach with MockitoSugar {
  // bind(Bar.class).toInstance(barMock);
  @Bind var barMock: Bar = _

  // Foo depends on Bar.
  @Inject var foo: Foo = _

  override def beforeEach() = {
    barMock = mock[Bar];
    Guice.createInjector(BoundFieldModule.of(this)).injectMembers(this);
  }

  "your Test" should {
    "do" in {
      // your test case
    }
  }
}

Guice，无法创建注射器

2 个答案: