AndroidJUnit4.class is deprecated: How to use androidx.test.ext.junit.runners.AndroidJUnit4?

Issue

For my instrumentation tests I was using

@RunWith(AndroidJUnit4.class)

from

import androidx.test.runner.AndroidJUnit4;

in order to establish my test cases. Now this line gets marked as deprecated with the hint to use AndroidJUnit4 from

import androidx.test.ext.junit.runners.AndroidJUnit4

However if I try to import AndroidJUnit4 from the named package I get the error, that ext can not be resolved.

Do you have an idea, what package should be included in gradle to resolve this issue?

Solution

According to the documentation for AndroidJUnit4,

1. The gradle file should contain the following line:

androidTestImplementation 'androidx.test.ext:junit:1.1.1'

2. Change test class to AndroidJUnit4ClassRunner from AndroidJUnit4

If it still doesn't work, make sure that you clean and/or rebuild your project. Also you can check the current version directly in Google's maven repository

Answered By - Marcel Gangwisch