[Android] Test for AlbumSongsViewModel done

[Shivansh Saini]

vlc-android | branch: master | Shivansh Saini <shivanshs9 at gmail.com> | Sat Jul 13 20:15:18 2019 +0530| [4da47f87b7b204bfcb5ea6f2a89f6780bcf0cf3f] | committer: Geoffrey Métais

Test for AlbumSongsViewModel done

- Fixed searchTracks & searchAlbum logic in StubArtist
- Improved AudioBrowserViewModelTest

Signed-off-by: Shivansh Saini <shivanshs9 at gmail.com>

> https://code.videolan.org/videolan/vlc-android/commit/4da47f87b7b204bfcb5ea6f2a89f6780bcf0cf3f
---

 .../videolan/medialibrary/stubs/StubArtist.java    |   6 +-
 vlc-android/test/org/videolan/vlc/BaseTest.kt      |   3 +
 .../viewmodels/mobile/AlbumSongsViewModelTest.kt   | 290 +++++++++++++++++++++
 .../viewmodels/mobile/AudioBrowserViewModelTest.kt |  46 +++-
 .../vlc/viewmodels/mobile/PlaylistViewModelTest.kt |   1 -
 5 files changed, 334 insertions(+), 12 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/4da47f87b7b204bfcb5ea6f2a89f6780bcf0cf3f