Hola, estoy tratando de ejecutar la clase de prueba instrumentada de ejemplo en mi proyecto, pero cada vez que la ejecuto, aparece este error:

 Test running failed: no test results Empty test suit

Aquí está mi ejemplo de clase de prueba instrumentada

 import org.junit.Assert.assertEquals import org.junit.Test import org.junit.runner.RunWith /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = androidx.test.platform.app.InstrumentationRegistry.getInstrumentation().context assertEquals("com.app", appContext.packageName) } }

Aquí está mi archivo de compilación Gradle para pruebas:

 android { compileSdkVersion 28 defaultConfig { applicationId "com.app" minSdkVersion 21 targetSdkVersion 28 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" testInstrumentationRunnerArguments clearPackageData: 'true' } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } testOptions { execution 'ANDROID_TEST_ORCHESTRATOR' } } dependencies { def mockito = "2.18.3" //android instrumental test androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1' androidTestImplementation 'androidx.test.ext:junit:1.1.0' androidTestImplementation 'androidx.test.ext:truth:1.1.0' androidTestImplementation 'androidx.test:core:1.1.0' androidTestImplementation 'androidx.test:runner:1.1.1' androidTestImplementation 'androidx.arch.core:core-testing:2.0.0' androidTestUtil 'androidx.test:orchestrator:1.1.1' androidTestImplementation 'com.jraska.livedata:testing-ktx:0.6.0' androidTestImplementation 'com.jraska.livedata:testing:0.6.0' androidTestImplementation "org.mockito:mockito-core:$mockito" androidTestImplementation "org.mockito:mockito-android:$mockito" androidTestImplementation "org.mockito:mockito-inline:$mockito" androidTestImplementation 'org.koin:koin-test:1.0.2' //unit test testImplementation 'junit:junit:4.12' testImplementation "org.mockito:mockito-core:$mockito" testImplementation "org.mockito:mockito-android:$mockito" testImplementation "org.mockito:mockito-inline:$mockito" testImplementation 'org.koin:koin-test:1.0.2' testImplementation 'androidx.test.ext:junit:1.1.0' testImplementation 'androidx.arch.core:core-testing:2.0.0' testImplementation 'com.jraska.livedata:testing-ktx:0.6.0' testImplementation 'com.jraska.livedata:testing:0.6.0' testImplementation 'androidx.test.ext:truth:1.1.0' } }