Android Unit Test Androidx Migration (Kotlin)

Dec 28, 2018
Cannot resolve symbol 'AndroidJUnit4'

Change module build.gradle.

android {

    ...

    defaultConfig {

        ...

        // testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
}

dependencies {
    testImplementation 'junit:junit:4.12'
    // androidTestImplementation 'com.android.support.test:runner:1.0.2'
    // androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation "androidx.test.ext:junit:1.1.0"
    androidTestImplementation "androidx.test.ext:junit-ktx:1.1.0"
    // androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.1.1'

    ...
}

AndroidJUnit4.class is deprecated

androidx.test.runner.AndroidJUnit4 is deprecated. use androidx.test.ext.junit.runners.AndroidJUnit4 instead.

In module build.gradle, make sure to replace com.android.support.test:runner:1.0.2 or androidx.test:runner:1.1.1 with androidx.test.ext:junit:1.1.0.

Test running failed: Instrumentation run failed due to 'java.lang.ClassNotFoundException'

Make sure to include androidTestImplementation 'androidx.test.espresso:espresso-intents:3.1.1'.

References:

❤️ Is this article helpful?

Buy me a coffee ☕ or support my work via PayPal to keep this space 🖖 and ad-free.

Do send some 💖 to @d_luaz or share this article.

✨ By Desmond Lua

A dream boy who enjoys making apps, travelling and making youtube videos. Follow me on @d_luaz

👶 Apps I built

Travelopy - discover travel places in Malaysia, Singapore, Taiwan, Japan.

Tags
Related articles
Firestore Test Production Security Rules With Android Unit TestAndroid Room Database Migration Instrumented Unit Test (Kotlin)Android Instrumented Unit Test Access Application ContextAndroid Instrumented Unit Test: Print Output LogUse Hamcrest Is In KotlinAndroid MD5 Test Suite / Unit Test / Test VectorsAndroid Run Unit Test in Sequence (Execution Order)Android Unit Test Handle Expected Exception (Kotlin)Android Instrumented Unit Test With Room Using In Memory Database And LiveDataAndroid Instrumented Unit Test With Hamcrest (Testing Moshi Adapter)