参见英文答案 >
AndroidX : No instrumentation registered! Must run under a registering instrumentation 2个
看一下官方的
documentation.Include framework dependencies一节给出了一个如何设置本地单元测试以使用android sdk环境的例子.但是,如果您按照示例执行所有操作,则测试无法启动.我得到了一个错误
java.lang.IllegalStateException: No instrumentation registered! Must
run under a registering instrumentation.
所有尝试都是在一个新项目上进行的. Android Studio 3.3,gradle-4.10.1,build:gradle:3.3.0,Kotlin,并包含Androidx工件.
然后使用指定的配置将以下行添加到项目中:
的build.gradle
android {
// ...
testOptions {
unitTests.includeAndroidResources = true
}
}
dependencies {
// ...
// Already exist
testImplementation 'junit:junit:4.12'
// Added this line
testImplementation 'androidx.test:core:1.0.0'
}
而测试体本身:
package com.example.myapplication
import android.content.Context
import androidx.test.core.app.ApplicationProvider
import org.junit.Test
class ExampleUnitTest {
val context = ApplicationProvider.getApplicationContext<Context>()
@Test
fun readStringFromContext_LocalizedString() {
System.out.println(context.applicationInfo.packageName)
}
}
我究竟做错了什么?
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.myapplication"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
testOptions {
unitTests.includeAndroidResources = true
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
implementation 'androidx.core:core-ktx:1.1.0-alpha03'
implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
testImplementation 'junit:junit:4.12'
testImplementation 'androidx.test:core:1.0.0'
androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
}
最佳答案 我想你需要在build.gradle中包含Robolectric依赖项,并为测试指定测试运行器:
@RunWith(RobolectricTestRunner.class)
class ExampleUnitTest {
之后它对我有用.我不知道为什么这些信息不包含在Android文档中.