Fixed: Don't find album when multiple albums have the same name

src/NzbDrone.Core.Test/MusicTests/AlbumRepositoryTests/AlbumRepositoryFixture.cs

@@ -13,7 +13,6 @@ namespace NzbDrone.Core.Test.MusicTests.AlbumRepositoryTests
         private Artist _artist;
         private Album _album;
         private Album _albumSpecial;
-        private Album _albumSimilar;
         private AlbumRelease _release;
         private AlbumRepository _albumRepo;
         private ReleaseRepository _releaseRepo;
@@ -48,6 +47,7 @@ namespace NzbDrone.Core.Test.MusicTests.AlbumRepositoryTests
                 ForeignAlbumId = "1",
                 CleanTitle = "anthology",
                 Artist = _artist,
+                ArtistMetadataId = _artist.ArtistMetadataId,
                 AlbumType = "",
                 AlbumReleases = new List<AlbumRelease> {_release },
             };
@@ -63,7 +63,7 @@ namespace NzbDrone.Core.Test.MusicTests.AlbumRepositoryTests
                 ForeignAlbumId = "2",
                 CleanTitle = "",
                 Artist = _artist,
-                ArtistId = _artist.ArtistMetadataId,
+                ArtistMetadataId = _artist.ArtistMetadataId,
                 AlbumType = "",
                 AlbumReleases = new List<AlbumRelease>
                 {
@@ -77,24 +77,6 @@ namespace NzbDrone.Core.Test.MusicTests.AlbumRepositoryTests
 
             _albumRepo.Insert(_albumSpecial);
 
-            _albumSimilar = new Album
-            {
-                Title = "ANThology2",
-                ForeignAlbumId = "3",
-                CleanTitle = "anthology2",
-                Artist = _artist,
-                ArtistId = _artist.ArtistMetadataId,
-                AlbumType = "",
-                AlbumReleases = new List<AlbumRelease>
-                {
-                    new AlbumRelease
-                    {
-                        ForeignReleaseId = "fake id 2"
-                    }
-                }
-                
-            };
-
         }
 
         [Test]
@@ -139,6 +121,26 @@ namespace NzbDrone.Core.Test.MusicTests.AlbumRepositoryTests
             album.Should().BeNull();
         }
 
+        [Test]
+        public void should_not_find_album_when_two_albums_have_same_name()
+        {
+            var albums = Builder<Album>.CreateListOfSize(2)
+                .All()
+                .With(x => x.Id = 0)
+                .With(x => x.Artist = _artist)
+                .With(x => x.ArtistMetadataId = _artist.ArtistMetadataId)
+                .With(x => x.Title = "Weezer")
+                .With(x => x.CleanTitle = "weezer")
+                .Build();
+            
+            _albumRepo.InsertMany(albums);
+            
+            var album = _albumRepo.FindByTitle(_artist.ArtistMetadataId, "Weezer");
+            
+            _albumRepo.All().Should().HaveCount(4);
+            album.Should().BeNull();
+        }
+        
         [Test]
         public void should_not_find_album_in_db_by_partial_releaseid()
         {

src/NzbDrone.Core/Music/AlbumRepository.cs

@@ -8,6 +8,7 @@ using System.Collections.Generic;
 using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Languages;
 using NzbDrone.Core.Qualities;
+using NzbDrone.Common.Extensions;
 
 namespace NzbDrone.Core.Music
 {
@@ -15,9 +16,7 @@ namespace NzbDrone.Core.Music
     {
         List<Album> GetAlbums(int artistId);
         List<Album> GetAlbumsByArtistMetadataId(int artistMetadataId);
-        Album FindByName(string cleanTitle);
         Album FindByTitle(int artistMetadataId, string title);
-        Album FindByArtistAndName(string artistName, string cleanTitle);
         Album FindById(string foreignId);
         List<Album> FindById(List<string> foreignIds);
         PagingSpec<Album> AlbumsWithoutFiles(PagingSpec<Album> pagingSpec);
@@ -328,13 +327,6 @@ namespace NzbDrone.Core.Music
             mapper.ExecuteNonQuery(sql);
         }
 
-        public Album FindByName(string cleanTitle)
-        {
-            cleanTitle = cleanTitle.ToLowerInvariant();
-
-            return Query.Where(s => s.CleanTitle == cleanTitle).SingleOrDefault();
-        }
-
         public Album FindByTitle(int artistMetadataId, string title)
         {
             var cleanTitle = Parser.Parser.CleanArtistName(title);
@@ -344,18 +336,7 @@ namespace NzbDrone.Core.Music
             
             return Query.Where(s => s.CleanTitle == cleanTitle || s.Title == title)
                         .AndWhere(s => s.ArtistMetadataId == artistMetadataId)
-                        .FirstOrDefault();
-        }
-
-        public Album FindByArtistAndName(string artistName, string cleanTitle)
-        {
-            var cleanArtistName = Parser.Parser.CleanArtistName(artistName);
-            cleanTitle = cleanTitle.ToLowerInvariant();
-
-            return Query.Join<Album, Artist>(JoinType.Inner, rg => rg.Artist, (rg, artist) => rg.ArtistMetadataId == artist.ArtistMetadataId)
-                        .Where<Artist>(artist => artist.CleanName == cleanArtistName)
-                        .Where<Album>(album => album.CleanTitle == cleanTitle)
-                        .SingleOrDefault();
+                        .ExclusiveOrDefault();
         }
 
         public Album FindAlbumByRelease(string albumReleaseId)