Fixed: NullReferenceException in GetAlbums

src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj

@@ -362,6 +362,7 @@
     <Compile Include="ParserTests\NormalizeTitleFixture.cs" />
     <Compile Include="ParserTests\ParserFixture.cs" />
     <Compile Include="ParserTests\ParsingServiceTests\GetArtistFixture.cs" />
+    <Compile Include="ParserTests\ParsingServiceTests\GetAlbumsFixture.cs" />
     <Compile Include="ParserTests\PathParserFixture.cs" />
     <Compile Include="ParserTests\QualityParserFixture.cs" />
     <Compile Include="ParserTests\ReleaseGroupParserFixture.cs" />
@@ -613,4 +614,4 @@
     </ItemGroup>
     <Copy SourceFiles="@(IdentificationTestCases)" DestinationFolder="$(OutputPath)\Files\Identification\" SkipUnchangedFiles="true" />
   </Target>
-</Project>
+</Project>

src/NzbDrone.Core.Test/ParserTests/ParsingServiceTests/GetAlbumsFixture.cs

@@ -0,0 +1,38 @@
+using Moq;
+using NUnit.Framework;
+using NzbDrone.Core.Parser;
+using NzbDrone.Core.Test.Framework;
+using NzbDrone.Core.Music;
+using FizzWare.NBuilder;
+using NzbDrone.Core.IndexerSearch.Definitions;
+using NzbDrone.Core.Parser.Model;
+using FluentAssertions;
+using System.Linq;
+using System.Collections.Generic;
+
+namespace NzbDrone.Core.Test.ParserTests.ParsingServiceTests
+{
+    [TestFixture]
+    public class GetAlbumsFixture : CoreTest<ParsingService>
+    {
+        [Test]
+        public void should_not_fail_if_search_criteria_contains_multiple_albums_with_the_same_name()
+        {
+            var artist = Builder<Artist>.CreateNew().Build();
+            var albums = Builder<Album>.CreateListOfSize(2).All().With(x => x.Title = "IdenticalTitle").Build().ToList();
+            var criteria = new AlbumSearchCriteria {
+                Artist = artist,
+                Albums = albums
+            };
+
+            var parsed = new ParsedAlbumInfo {
+                AlbumTitle = "IdenticalTitle"
+            };
+            
+            Subject.GetAlbums(parsed, artist, criteria).Should().BeEquivalentTo(new List<Album>());
+
+            Mocker.GetMock<IAlbumService>()
+                .Verify(s => s.FindByTitle(artist.ArtistMetadataId, "IdenticalTitle"), Times.Once());
+        }
+    }
+}

src/NzbDrone.Core/Parser/ParsingService.cs

@@ -149,7 +149,7 @@ namespace NzbDrone.Core.Parser
 
             if (searchCriteria != null)
             {
-                albumInfo = searchCriteria.Albums.SingleOrDefault(e => e.Title == albumTitle);
+                albumInfo = searchCriteria.Albums.ExclusiveOrDefault(e => e.Title == albumTitle);
             }
 
             if (albumInfo == null)