我继承了一个由主应用程序和一个库组成的 Android 项目。我的目标是测试整个项目，所以我从库开始：首先我使用 JUnit 测试一些类/方法，编写我的库项目的测试应用程序/src/test/java（单元测试），同时生成一个Android Studio 的代码覆盖率报告。当我找到一个使用 Parcel 的类（来自 Android 框架）时，问题就来了，所以这次我必须在库项目中设置一个检测测试（app/src/androidTest/java）。
当我尝试运行仪器测试并插入 Android 设备时，我收到了以下消息：
Started running tests
Test running failed: Instrumentation run failed due to 'java.lang.ClassNotFoundException'
Empty test suite.
我不明白为什么“空测试套件”，而我的测试类中有几个 @Test 方法。我是否必须设置 Gradle 如何在测试期间链接主应用程序和库？也许我必须在主应用程序中移动我的所有测试？！
这是我对图书馆模块的 gradle：
apply plugin: 'com.android.library'
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
minSdkVersion rootProject.ext.minSdkVersion
// Added for instrumental tests
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
javaCompileOptions {
annotationProcessorOptions {
arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
}
}
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable true
testCoverageEnabled true
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
testOptions {
unitTests.returnDefaultValues = true
}
}
dependencies {
implementation "com.android.support:support-v4:$rootProject.supportLibraryVersion"
implementation "com.google.code.gson:gson:$rootProject.gsonVersion"
implementation "commons-io:commons-io:$rootProject.commonsioVersion"
// Dependencies for RxBinding
implementation 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
// Dependencies for Rxjava2 and RxAndroid
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
implementation 'io.reactivex.rxjava2:rxjava:2.1.8'
// Dependencies for RxBinding
implementation 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
// Dependencies for Retrofit
implementation 'com.squareup.retrofit2:retrofit:2.3.0'
implementation 'com.squareup.retrofit2:converter-simplexml:2.3.0'
implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
implementation 'com.squareup.okhttp:okhttp:2.7.0'
// Dependencies for Room
// Room (use 1.1.0-alpha1 for latest alpha)
implementation 'android.arch.persistence.room:runtime:1.1.1'
implementation 'android.arch.persistence.room:rxjava2:1.1.1'
annotationProcessor "android.arch.persistence.room:compiler:1.1.1"
implementation "com.android.support:support-annotations:$rootProject.supportLibraryVersion"
implementation "org.apache.httpcomponents:httpcore:$rootProject.httpcoreVersion"
testImplementation 'junit:junit:4.12'
// // [Android Instrumented test]
androidTestImplementation 'junit:junit:4.12'
// androidTestImplementation 'androidx.test:runner:1.1.0'
// androidTestImplementation 'androidx.test:rules:1.1.0'
// // Optional -- Hamcrest library
androidTestImplementation 'org.hamcrest:hamcrest-library:1.3'
// // Optional -- UI testing with Espresso
// androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
// // Optional -- UI testing with UI Automator
// androidTestImplementation 'androidx.test.uiautomator:uiautomator:2.2.0'
api files('libs/lifesense_ble_v3.3.7.jar')
api files('libs/MedPixel.jar')
}
和应用程序的：
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersion '28.0.3'
defaultConfig {
applicationId "it.*******.********"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 2
versionName "1.0.2"
}
buildTypes {
release {
shrinkResources true
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
applicationIdSuffix ".debug"
debuggable true
}
}
lintOptions {
checkReleaseBuilds false
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation project(':..:Libraries:app')
implementation "com.android.support:support-v4:$rootProject.supportLibraryVersion"
implementation "com.google.code.gson:gson:$rootProject.gsonVersion"
implementation "commons-io:commons-io:$rootProject.commonsioVersion"
// Dependencies for ButterKnife
implementation 'com.jakewharton:butterknife:8.8.1'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
// Dependencies for Dagger
implementation 'com.google.dagger:dagger:2.11'
annotationProcessor 'com.google.dagger:dagger-compiler:2.11'
// Dependencies for RxBinding
implementation 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
// Dependencies for Rxjava2 and RxAndroid
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
implementation 'io.reactivex.rxjava2:rxjava:2.1.8'
// Dependencies for Retrofit
implementation 'com.squareup.retrofit2:retrofit:2.3.0'
implementation 'com.squareup.retrofit2:converter-simplexml:2.3.0'
implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
implementation 'com.squareup.okhttp:okhttp:2.7.0'
// Dependencies for Room
implementation 'android.arch.persistence.room:runtime:1.1.1'
// Dependencies for Roboelecttic
testImplementation 'org.robolectric:robolectric:3.6.1'
testImplementation 'junit:junit:4.12'
// Dependencies for Mockito
testImplementation 'org.mockito:mockito-core:2.7.22'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
androidTestImplementation 'com.squareup.retrofit2:retrofit-mock:2.0.0'
androidTestImplementation 'com.squareup.okhttp:mockwebserver:2.7.0'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'org.mockito:mockito-android:2.7.22'
}
configurations.all {
resolutionStrategy {
force "android.arch.core:runtime:1.1.1"
force "com.android.support:support-core-utils:28.0.0"
/*force "com.android.support:support-compat:28.0.0"*/
}
}
感谢关注！