NOK-17: Music player handling

Steps to conduct the test:

1. Start the application.

2. Start the system music player and play some music.

3. Switch back to the application.

4. Switch to the music player.

5. Press the forward button in the music player.

6. Press the backward button in the music player.

7. Switch back to the application.

8. Press the volume button.

9. Close the music player.

10. Close the application.

Expected test result:

The music player opens correctly and starts playing the music. If the tested application is a player and has a higher priority, no disturbance should occur to the currently played track and/or a notification should be shown to the user regarding impossible simultaneous usage.

The application runs correctly and music continues to play in the background.

Music player functions work as specified.

The volume button also works when the music player is in the background.

The music player closes without any notification or noise.

The application closes normally.

Pass:____ Fail:____ Pass with exception: ____