Add some unit test for stubs

Sources/TestUnitaires/TU_StubAlbum.cs

@@ -0,0 +1,31 @@
+using Model;
+using Model.Stub;
+using Newtonsoft.Json.Linq;
+using NuGet.Frameworks;
+using System.Collections.ObjectModel;
+
+namespace TestUnitaires
+{
+
+    public class TU_StubAlbum
+    {
+        [Theory]
+        [InlineData("test")]
+        public void TU_Methods(string test)
+        {
+            StubAlbum stubAlbum = new StubAlbum();
+            Artist artist = new Artist("Un mec");
+            ObservableCollection<Album> collec = new ObservableCollection<Album>();
+            Album album = new Album("Bon Album", "album1.png", artist, "une description", "des informations");
+            stubAlbum.AddAlbum(album);
+            Assert.Contains(album, stubAlbum.Albums);
+            stubAlbum.RemoveAlbum(album);
+            Assert.DoesNotContain(album, stubAlbum.Albums);
+            album = stubAlbum.GetAlbumByName("Adios Bahamas");
+            Assert.Contains(album, stubAlbum.Albums);
+            collec = stubAlbum.GetAlbums();
+            Assert.Equal(collec, stubAlbum.Albums);
+        }
+    }
+
+}

Sources/TestUnitaires/TU_StubPlaylist.cs

@@ -0,0 +1,30 @@
+using Model;
+using Model.Stub;
+using Newtonsoft.Json.Linq;
+using NuGet.Frameworks;
+using System.Collections.ObjectModel;
+
+namespace TestUnitaires
+{
+
+    public class TU_StubPlaylist
+    {
+        [Theory]
+        [InlineData("test")]
+        public void TU_Methods(string test)
+        {
+            StubPlaylist stubPlaylist = new StubPlaylist();
+            Playlist playlist = new Playlist("Une playlist", "Une description", "image.jpeg");
+            ObservableCollection<Playlist> collec = new ObservableCollection<Playlist>();
+            stubPlaylist.AddPlaylist(playlist);
+            Assert.Contains(playlist, stubPlaylist.Playlists);
+            stubPlaylist.RemovePlaylist(playlist);
+            Assert.DoesNotContain(playlist, stubPlaylist.Playlists);
+            playlist = stubPlaylist.GetPlaylistByName("Playlist1");
+            Assert.Contains(playlist, stubPlaylist.Playlists);
+            collec = stubPlaylist.GetPlaylists();
+            Assert.Equal(collec, stubPlaylist.Playlists);
+        }
+    }
+
+}