androidTest fails in new Android Studio Chipmunk release 2021.2.1

Technical details

cwa-android branch: release/2.23.x Android Studio Chipmunk | 2021.2.1 Windows 11

Describe the bug

Using the Android Studio Chipmunk release 2021.2.1, classed as “stable” and released on May 9, 2022 (see https://android-developers.googleblog.com/2022/05/android-studio-chipmunk.html) CWA Android release/2.23.x produces the error message Duplicate content roots detected. Attempting to run androidTests produces the error message SEVERE: Test execution failed with fatal error! and it is not possible to run the tests.

This is a regression from the previous stable environment Android Studio Bumblebee | 2021.1.1 Patch 3. It affects build variants

• deviceDebug
• deviceForTestersDebug

(deviceRelease and deviceForTestersRelease do not include androidTest.)

Steps to reproduce the issue

Android Studio Chipmunk

Build > Select Build Variant: deviceforTestersDebug

File > Sync Project with Gradle Files

Note error message:

Duplicate content roots detected: Path [C:/Users/<user_name>/github/cwa-app-android/Corona-Warn-App/src/testShared/java] of module [Corona-Warn.Corona-Warn-App.unitTest] was removed from modules [Corona-Warn.Corona-Warn-App.androidTest]

Build > Rebuild Project Run androidTest (Tests in de/rki/coronawarnapp) on Android 11 device

Note error message:

com.google.testing.platform.RunnerImpl run
SEVERE: Test execution failed with fatal error!
com.google.testing.platform.api.plugin.PluginException: Exception thrown during onBeforeAll invocation of plugin com.google.testing.platform.plugin.android.AndroidDevicePlugin.

Android Studio Bumblebee

For comparison, the identical steps are successful in Android Studio Bumblebee.

Build > Select Build Variant: deviceforTestersDebug File > Sync Project with Gradle Files
(no error message)
Build > Rebuild Project
Run androidTest (Tests in de/rki/coronawarnapp) on Android 11 device

Status shows 7 failed, 181 passed, 253 tests

Expected behavior

It should be possible to run androidTest in the stable release of Android Studio, currently the Chipmunk 2021.2.1 version.

Possible Fix

There is a related P1 bug logged on https://issuetracker.google.com/issues/232007221 “Duplicate content roots detected” with Android Gradle plugin 7.2.0", however CWA is using AGP 7.1.3 not 7.2.0.

If this is not fixable in CWA Android, then a note should be added to https://github.com/corona-warn-app/cwa-app-android/wiki/1-Setup which recommends using the latest version of Android Studio. That recommendation should be changed.

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Internal Tracking ID: EXPOSUREAPP-13104

[MikeMcC399]

• This issue is resolved in release 2.24 through PR #5238. The message Duplicate content roots detected:. is no longer output in Android Studio Chipmunk, 2021.2.1 Patch 1 when performing a “Sync Project with Gradle Files” operation.

Closing again, since this is a development-only issue, which does not affect end-users.

[MikeMcC399]

@thorbenkuro

Thanks for cross-checking this issue. With Chipmunk the error Duplicate content roots detected: is always reproducible. I found though that the other error

com.google.testing.platform.RunnerImpl run
SEVERE: Test execution failed with fatal error!

does not always occur. I checked using a physical device, not an emulator.

I have the feeling that Chipmunk is not yet stable. Hopefully there will be a Chipmunk Patch 1 soon and we can recheck the stability. If a patch is going to be released in the next days (similar to the Patch 1 cycle for Bumblebee) then it’s probably not worth updating the Wiki at the moment.