android - 带有视图模型的 Hilt 测试单元,未注册仪器
问题描述
我想使用 Hilt to ViewModel 实现依赖注入。那工作。但我无法测试它。它显示错误。我读了其他一些帖子,但没有人回答。
这个错误可能是太多的测试依赖和冲突。
版本
刀柄版本 = 2.35.1 Android Studio = 4.2.1
测试班
最简单的代码不会运行
package com.unlink.moviecatalogue6.ui.movie
import com.unlink.moviecatalogue6.data.repository.MovieRepository
import dagger.hilt.android.testing.HiltAndroidRule
import dagger.hilt.android.testing.HiltAndroidTest
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import javax.inject.Inject
@HiltAndroidTest
class MovieViewModelTest {
@get:Rule var hiltrule = HiltAndroidRule(this)
@Inject
lateinit var repository: MovieRepository
@Before
fun setUp() {
hiltrule.inject()
}
@Test
fun some(){
//
}
}
错误
但错误在@get:Rule
java.lang.IllegalStateException: No instrumentation registered! Must run under a registering instrumentation.
at androidx.test.platform.app.InstrumentationRegistry.getInstrumentation(InstrumentationRegistry.java:45)
at androidx.test.core.app.ApplicationProvider.getApplicationContext(ApplicationProvider.java:41)
at dagger.hilt.android.internal.testing.MarkThatRulesRanRule.<init>(MarkThatRulesRanRule.java:41)
at dagger.hilt.android.testing.HiltAndroidRule.<init>(HiltAndroidRule.java:36)
at com.unlink.moviecatalogue6.ui.movie.MovieViewModelTest2.<init>(MovieViewModelTest2.kt:19)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:250)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:260)
at org.junit.runners.BlockJUnit4ClassRunner$2.runReflectiveCall(BlockJUnit4ClassRunner.java:309)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
设置自定义测试运行器
我尝试制作自定义测试运行器
package com.unlink.moviecatalogue6
class CustomTestRunnerByMe : AndroidJUnitRunner() {
override fun newApplication(
cl: ClassLoader?,
className: String?,
context: Context?
): Application {
return super.newApplication(cl, HiltTestApplication::class.java.name, context)
}
}
这里是我的完整build.gradle
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt'
id 'dagger.hilt.android.plugin'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
buildFeatures{
viewBinding true
}
defaultConfig {
applicationId "com.unlink.moviecatalogue6"
minSdkVersion 21
targetSdkVersion 30
versionCode 1
versionName "1.0"
//custom test runner
testInstrumentationRunner "com.unlink.moviecatalogue6.CustomTestRunnerByMe"
//testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
multiDexEnabled false
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
// viewmodels
implementation 'androidx.activity:activity-ktx:1.2.3'
implementation 'androidx.fragment:fragment-ktx:1.3.3'
//image library
implementation 'de.hdodenhof:circleimageview:3.1.0'
implementation 'com.github.bumptech.glide:glide:4.12.0'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.palette:palette-ktx:1.0.0'
//Retrofit
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation "com.squareup.okhttp3:okhttp:5.0.0-alpha.2"
implementation "com.squareup.okhttp3:logging-interceptor:5.0.0-alpha.2"
//Kotlin Coroutines
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_android_version"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_android_version"
//Hilt
implementation "com.google.dagger:hilt-android:$hilt_version"
implementation "androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha03"
kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
kapt "androidx.hilt:hilt-compiler:1.0.0"
// default testing
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
// mockito testing
testImplementation "androidx.arch.core:core-testing:2.1.0"
testImplementation "org.mockito.kotlin:mockito-kotlin:3.2.0"
//coroutine test
//For runBlockingTest, CoroutineDispatcher etc.
testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.4.2"
// hilt testing
// For Robolectric tests.
testImplementation "com.google.dagger:hilt-android-testing:$hilt_version"
kaptTest "com.google.dagger:hilt-android-compiler:$hilt_version"
// For instrumented tests.
androidTestImplementation "com.google.dagger:hilt-android-testing:$hilt_version"
kaptAndroidTest "com.google.dagger:hilt-android-compiler:$hilt_version"
// Espresso dependencies
androidTestImplementation "androidx.test.espresso:espresso-core:$espresso_version"
androidTestImplementation "androidx.test.espresso:espresso-contrib:$espresso_version"
androidTestImplementation "androidx.test.espresso:espresso-intents:$espresso_version"
androidTestImplementation "androidx.test.espresso:espresso-accessibility:$espresso_version"
androidTestImplementation "androidx.test.espresso:espresso-web:$espresso_version"
androidTestImplementation "androidx.test.espresso.idling:idling-concurrent:$espresso_version"
}
kapt{
correctErrorTypes true
}
我在Hilt Documentation和Google Developer Document上关注文档
任何回复将不胜感激,感谢您的帮助
解决方案
package com.unlink.moviecatalogue6.ui.movie
import com.unlink.moviecatalogue6.data.repository.MovieRepository
import dagger.hilt.android.testing.HiltAndroidRule
import dagger.hilt.android.testing.HiltAndroidTest
import org.junit.Before
import androidx.test.ext.junit.runners.AndroidJUnit4
import org.junit.Rule
import org.junit.Test
import javax.inject.Inject
@HiltAndroidTest
@RunWith(AndroidJUnit4::class)
class MovieViewModelTest {
@get:Rule var hiltrule = HiltAndroidRule(this)
@Inject
lateinit var repository: MovieRepository
@Before
fun setUp() {
hiltrule.inject()
}
@Test
fun some(){
//
}
}
添加@RunWith(AndroidJUnit4::class)
推荐阅读
- windows - 什么会导致错误代码 32 后跟错误代码 2?
- django - Django model.py 多对多错误查询冲突
- javascript - 这段代码可以重构为更短的代码吗?
- sql - 如何从sql中的行和列标题中获取最大值?
- python - 类型错误:
() 缺少 1 个必需的位置参数:'b' (molfile_to_params.py) - php - 为什么 PHP 函数只在 mysqli_fetch 上返回一个值?
- maven - 无法在 Karaf 中加载捆绑包
- python - 如何分隔条形图中的条形并为 sorted(bookp) 中的所有项目打勾?
- python - 尝试在 for 循环中使用带有 lambda 表达式的 python map 函数来解决
- .htaccess - 如何将 HTML 索引文件重定向到子文件夹目录?