Koin 依赖覆盖在测试中不起作用
Koin dependency override is not working in testing
我是测试新手，我将 Koin 改编为我的依赖注入。我的应用程序工作正常。它仍然具有登录功能。这是我的依赖 class
Modules.kt
val applicationModule = module (override = true) {
single { NetworkService.getInstance().getService(APIService::class.java) }
single { PreferenceManager.getDefaultSharedPreferences(androidContext()) }
}
val activityModule = module {
scope(named<LoginActivity>()) {
scoped { (activity: LoginActivity) ->
Navigation
.findNavController(activity, R.id.hostFragment)
}
}
scope(named<MainNavigationActivity>()) {
scoped { (activity: MainNavigationActivity) ->
Navigation
.findNavController(activity, R.id.hostFragment)
}
}
}
val viewModelModule = module {
viewModel { LoginViewModel(loginRepository = get()) }
}
val repositoryModule = module (override = true) {
single { LoginRepository() }
}
我正在尝试为 LoginRepository 中的登录功能编写一个简单的单元测试。我 MockWebServer
激发响应并获得结果。这是 LoginRepository
中的代码
登录存储库
class LoginRepository: KoinComponent {
val network: APIService by inject()
var loginMutableData = MutableLiveData<SingleLiveEvent<Resource<UserSession>>>()
fun getLoginStatus(): LiveData<SingleLiveEvent<Resource<UserSession>>> {
return loginMutableData
}
fun generalLogin(email: String, encryptedPassword: String){
val login = network.login(email, encryptedPassword)
login.enqueue(object : Callback<LoginResponse> {
override fun onResponse(call: Call<LoginResponse>, response: Response<LoginResponse>) {
if(response.isSuccessful){
if(response.body()?.status == 1){
val resource = Resource<UserSession>(true,"Success")
response.body().let {
if(it?.session != null){
resource.data = UserSession(it.session.userId!!,it.session.fullName!!)
}
}
loginMutableData.value = SingleLiveEvent(resource)
}else{
val resource = Resource<UserSession>(false,response.body()?.msg ?: "Login failed. Try again")
loginMutableData.value = SingleLiveEvent(resource)
}
}else{
loginMutableData.value = SingleLiveEvent(Resource(false, response.message()))
}
}
override fun onFailure(call: Call<LoginResponse>, t: Throwable) {
loginMutableData.value = SingleLiveEvent(Resource(false, t.localizedMessage))
}
})
}
}
所以我在下面写了测试 class 来测试 LoginRepository 中的这个 generalLogin(email: String, encryptedPassword: String) 函数。
LoginRepositoryTest
class LoginRepositoryTest : KoinTest {
private val loginRepository: LoginRepository by inject()
private val server by lazy { MockWebServer() }
private lateinit var network: APIService
@get:Rule
val rule = InstantTaskExecutorRule()
@Before
fun setUp() {
MockitoAnnotations.initMocks(this)
startKoin {
printLogger()
modules(repositoryModule)
}
}
@Test
fun testLoginWithCorrectCredentials() {
server.enqueue(
MockResponse()
.setResponseCode(200)
.setBody("{\"msg\":\"success\",\"status\":1,\"session\":{\"userName\":\"Chathuran\",\"loggedin_user_email\":\"valid_email_address@gmail.com\"}}")
)
server.start()
val testingUrl = server.url("account/userAuth/api_login/")
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module{network})
val email = "valid_email_address@gmail.com"
val password = "valid_password"
loginRepository.generalLogin(email, password)
loginRepository.getLoginStatus().observeForever {
it.getContentIfNotHandled()?.also { resource ->
Assert.assertEquals(email, resource.data?.email)
}
}
}
@After
fun tearDown() {
stopKoin()
server.shutdown()
}
}
所以在这个 class 中，我试图用我在测试调用中创建的实例覆盖 APIService 实例。这样我就可以告诉我的 Retrofit 实例使用 MockWebServer 提供的基础 URL。但是我从 Koin.
收到以下错误
org.koin.core.error.NoBeanDefFoundException: No definition found for 'com.findmyfare.mobile.app.network.APIService' has been found. Check your module definitions.
at org.koin.core.scope.Scope.findDefinition(Scope.kt:170)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:164)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at com.findmyfare.mobile.app.repository.LoginRepository$$special$$inlined$inject.invoke(Scope.kt:327)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.findmyfare.mobile.app.repository.LoginRepository.getNetwork(LoginRepository.kt)
at com.findmyfare.mobile.app.repository.LoginRepository.generalLogin(LoginRepository.kt:29)
at com.findmyfare.mobile.app.repository.LoginRepositoryTest.testLoginWithCorrectCredentials(LoginRepositoryTest.kt:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.TestWatcher.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=13=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
如果这是错误的，覆盖 APIService 实例的正确方法是什么？谢谢。
编辑：我的 build.gradle 依赖项
// Koin
def koin_version = '2.0.1'
implementation "org.koin:koin-androidx-scope:$koin_version"
implementation "org.koin:koin-androidx-viewmodel:$koin_version"
implementation "org.koin:koin-androidx-ext:$koin_version"
testImplementation "org.koin:koin-test:$koin_version"
//Testing
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
testImplementation 'junit:junit:4.12'
testImplementation "org.mockito:mockito-core:2.21.0"
testImplementation 'android.arch.core:core-testing:1.1.1'
testImplementation 'com.squareup.okhttp3:mockwebserver:4.2.1'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
你实际上并没有用你的模块覆盖一个 bean
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module{network})
改为将网络 bean 声明为覆盖
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module { single(override=true) { network } })
此外，您不需要将 override 与主模块一起使用。
通过您的实施，您甚至不需要 override 以上内容。在测试之前，您没有使用 Koin 启动主模块。这可能会导致另一个问题，因此请确保拥有您需要的所有模块 运行.
startKoin {
printLogger()
modules(applicationModule, repositoryModule)
}
我是测试新手，我将 Koin 改编为我的依赖注入。我的应用程序工作正常。它仍然具有登录功能。这是我的依赖 class
Modules.kt
val applicationModule = module (override = true) {
single { NetworkService.getInstance().getService(APIService::class.java) }
single { PreferenceManager.getDefaultSharedPreferences(androidContext()) }
}
val activityModule = module {
scope(named<LoginActivity>()) {
scoped { (activity: LoginActivity) ->
Navigation
.findNavController(activity, R.id.hostFragment)
}
}
scope(named<MainNavigationActivity>()) {
scoped { (activity: MainNavigationActivity) ->
Navigation
.findNavController(activity, R.id.hostFragment)
}
}
}
val viewModelModule = module {
viewModel { LoginViewModel(loginRepository = get()) }
}
val repositoryModule = module (override = true) {
single { LoginRepository() }
}
我正在尝试为 LoginRepository 中的登录功能编写一个简单的单元测试。我 MockWebServer
激发响应并获得结果。这是 LoginRepository
登录存储库
class LoginRepository: KoinComponent {
val network: APIService by inject()
var loginMutableData = MutableLiveData<SingleLiveEvent<Resource<UserSession>>>()
fun getLoginStatus(): LiveData<SingleLiveEvent<Resource<UserSession>>> {
return loginMutableData
}
fun generalLogin(email: String, encryptedPassword: String){
val login = network.login(email, encryptedPassword)
login.enqueue(object : Callback<LoginResponse> {
override fun onResponse(call: Call<LoginResponse>, response: Response<LoginResponse>) {
if(response.isSuccessful){
if(response.body()?.status == 1){
val resource = Resource<UserSession>(true,"Success")
response.body().let {
if(it?.session != null){
resource.data = UserSession(it.session.userId!!,it.session.fullName!!)
}
}
loginMutableData.value = SingleLiveEvent(resource)
}else{
val resource = Resource<UserSession>(false,response.body()?.msg ?: "Login failed. Try again")
loginMutableData.value = SingleLiveEvent(resource)
}
}else{
loginMutableData.value = SingleLiveEvent(Resource(false, response.message()))
}
}
override fun onFailure(call: Call<LoginResponse>, t: Throwable) {
loginMutableData.value = SingleLiveEvent(Resource(false, t.localizedMessage))
}
})
}
}
所以我在下面写了测试 class 来测试 LoginRepository 中的这个 generalLogin(email: String, encryptedPassword: String) 函数。
LoginRepositoryTest
class LoginRepositoryTest : KoinTest {
private val loginRepository: LoginRepository by inject()
private val server by lazy { MockWebServer() }
private lateinit var network: APIService
@get:Rule
val rule = InstantTaskExecutorRule()
@Before
fun setUp() {
MockitoAnnotations.initMocks(this)
startKoin {
printLogger()
modules(repositoryModule)
}
}
@Test
fun testLoginWithCorrectCredentials() {
server.enqueue(
MockResponse()
.setResponseCode(200)
.setBody("{\"msg\":\"success\",\"status\":1,\"session\":{\"userName\":\"Chathuran\",\"loggedin_user_email\":\"valid_email_address@gmail.com\"}}")
)
server.start()
val testingUrl = server.url("account/userAuth/api_login/")
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module{network})
val email = "valid_email_address@gmail.com"
val password = "valid_password"
loginRepository.generalLogin(email, password)
loginRepository.getLoginStatus().observeForever {
it.getContentIfNotHandled()?.also { resource ->
Assert.assertEquals(email, resource.data?.email)
}
}
}
@After
fun tearDown() {
stopKoin()
server.shutdown()
}
}
所以在这个 class 中，我试图用我在测试调用中创建的实例覆盖 APIService 实例。这样我就可以告诉我的 Retrofit 实例使用 MockWebServer 提供的基础 URL。但是我从 Koin.
org.koin.core.error.NoBeanDefFoundException: No definition found for 'com.findmyfare.mobile.app.network.APIService' has been found. Check your module definitions.
at org.koin.core.scope.Scope.findDefinition(Scope.kt:170)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:164)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at com.findmyfare.mobile.app.repository.LoginRepository$$special$$inlined$inject.invoke(Scope.kt:327)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.findmyfare.mobile.app.repository.LoginRepository.getNetwork(LoginRepository.kt)
at com.findmyfare.mobile.app.repository.LoginRepository.generalLogin(LoginRepository.kt:29)
at com.findmyfare.mobile.app.repository.LoginRepositoryTest.testLoginWithCorrectCredentials(LoginRepositoryTest.kt:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.TestWatcher.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=13=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
如果这是错误的，覆盖 APIService 实例的正确方法是什么？谢谢。
编辑：我的 build.gradle 依赖项
// Koin
def koin_version = '2.0.1'
implementation "org.koin:koin-androidx-scope:$koin_version"
implementation "org.koin:koin-androidx-viewmodel:$koin_version"
implementation "org.koin:koin-androidx-ext:$koin_version"
testImplementation "org.koin:koin-test:$koin_version"
//Testing
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
testImplementation 'junit:junit:4.12'
testImplementation "org.mockito:mockito-core:2.21.0"
testImplementation 'android.arch.core:core-testing:1.1.1'
testImplementation 'com.squareup.okhttp3:mockwebserver:4.2.1'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
你实际上并没有用你的模块覆盖一个 bean
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module{network})
改为将网络 bean 声明为覆盖
network = NetworkService.getInstance().getService(APIService::class.java, testingUrl)
loadKoinModules(module { single(override=true) { network } })
此外，您不需要将 override 与主模块一起使用。
通过您的实施，您甚至不需要 override 以上内容。在测试之前，您没有使用 Koin 启动主模块。这可能会导致另一个问题，因此请确保拥有您需要的所有模块 运行.
startKoin {
printLogger()
modules(applicationModule, repositoryModule)
}