Fixed: Magnet links with torrent blackhole

src/NzbDrone.Core.Test/Download/DownloadClientTests/Blackhole/TorrentBlackholeFixture.cs

@@ -9,7 +9,9 @@ using NzbDrone.Common.Disk;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Download;
 using NzbDrone.Core.Download.Clients.TorrentBlackhole;
+using NzbDrone.Core.Exceptions;
 using NzbDrone.Core.MediaFiles.TorrentInfo;
+using NzbDrone.Core.Parser.Model;
 using NzbDrone.Test.Common;
 
 namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
@@ -67,6 +69,21 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
                 .Returns(1000000);
         }
 
+        protected override RemoteEpisode CreateRemoteEpisode()
+        {
+            var remoteEpisode = base.CreateRemoteEpisode();
+            var torrentInfo = new TorrentInfo();
+
+            torrentInfo.Title = remoteEpisode.Release.Title;
+            torrentInfo.DownloadUrl = remoteEpisode.Release.DownloadUrl;
+            torrentInfo.DownloadProtocol = remoteEpisode.Release.DownloadProtocol;
+            torrentInfo.MagnetUrl = "magnet:?xt=urn:btih:755248817d32b00cc853e633ecdc48e4c21bff15&dn=Series.S05E10.PROPER.HDTV.x264-DEFiNE%5Brartv%5D&tr=http%3A%2F%2Ftracker.trackerfix.com%3A80%2Fannounce&tr=udp%3A%2F%2F9.rarbg.me%3A2710&tr=udp%3A%2F%2F9.rarbg.to%3A2710";
+
+            remoteEpisode.Release = torrentInfo;
+
+            return remoteEpisode;
+        }
+
         [Test]
         public void completed_download_should_have_required_properties()
         {
@@ -116,6 +133,15 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
+        [Test]
+        public void Download_should_throw_if_magnet_and_torrent_url_does_not_exist()
+        {
+            var remoteEpisode = CreateRemoteEpisode();
+            remoteEpisode.Release.DownloadUrl = null;
+
+            Assert.Throws<ReleaseDownloadException>(() => Subject.Download(remoteEpisode));
+        }
+
         [Test]
         public void GetItems_should_considered_locked_files_queued()
         {

src/NzbDrone.Core/Download/TorrentClientBase.cs

@@ -52,7 +52,7 @@ namespace NzbDrone.Core.Download
             string magnetUrl = null;
             string torrentUrl = null;
 
-            if (remoteEpisode.Release.DownloadUrl.StartsWith("magnet:"))
+            if (remoteEpisode.Release.DownloadUrl.IsNotNullOrWhiteSpace() && remoteEpisode.Release.DownloadUrl.StartsWith("magnet:"))
             {
                 magnetUrl = remoteEpisode.Release.DownloadUrl;
             }
@@ -76,11 +76,16 @@ namespace NzbDrone.Core.Download
                 }
                 catch (NotSupportedException ex)
                 {
+                    if (torrentUrl.IsNullOrWhiteSpace())
+                    {
+                        throw new ReleaseDownloadException(remoteEpisode.Release, "Magnet not supported by download client. ({0})", ex.Message);
+                    }
+
                     _logger.Debug("Magnet not supported by download client, trying torrent. ({0})", ex.Message);
                 }
             }
 
-            if (hash == null && !torrentUrl.IsNullOrWhiteSpace())
+            if (hash == null && torrentUrl.IsNotNullOrWhiteSpace())
             {
                 hash = DownloadFromWebUrl(remoteEpisode, torrentUrl);
             }