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diff --git a/subsonic-main/src/test/java/net/sourceforge/subsonic/domain/MediaFileComparatorTestCase.java b/subsonic-main/src/test/java/net/sourceforge/subsonic/domain/MediaFileComparatorTestCase.java
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+/*
+ This file is part of Subsonic.
+
+ Subsonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+package net.sourceforge.subsonic.domain;
+
+import junit.framework.TestCase;
+
+/**
+ * @author Sindre Mehus
+ * @version $Id$
+ */
+public class MediaFileComparatorTestCase extends TestCase {
+
+    private final MediaFileComparator comparator = new MediaFileComparator(true);
+
+    public void testCompareAlbums() throws Exception {
+
+        MediaFile albumA2012 = new MediaFile();
+        albumA2012.setMediaType(MediaFile.MediaType.ALBUM);
+        albumA2012.setPath("a");
+        albumA2012.setYear(2012);
+
+        MediaFile albumB2012 = new MediaFile();
+        albumB2012.setMediaType(MediaFile.MediaType.ALBUM);
+        albumB2012.setPath("b");
+        albumB2012.setYear(2012);
+
+        MediaFile album2013 = new MediaFile();
+        album2013.setMediaType(MediaFile.MediaType.ALBUM);
+        album2013.setPath("c");
+        album2013.setYear(2013);
+
+        MediaFile albumWithoutYear = new MediaFile();
+        albumWithoutYear.setMediaType(MediaFile.MediaType.ALBUM);
+        albumWithoutYear.setPath("c");
+
+        assertEquals(0, comparator.compare(albumWithoutYear, albumWithoutYear));
+        assertEquals(0, comparator.compare(albumA2012, albumA2012));
+
+        assertEquals(-1, comparator.compare(albumA2012, albumWithoutYear));
+        assertEquals(-1, comparator.compare(album2013, albumWithoutYear));
+        assertEquals(1, comparator.compare(album2013, albumA2012));
+
+        assertEquals(1, comparator.compare(albumWithoutYear, albumA2012));
+        assertEquals(1, comparator.compare(albumWithoutYear, album2013));
+        assertEquals(-1, comparator.compare(albumA2012, album2013));
+
+        assertEquals(-1, comparator.compare(albumA2012, albumB2012));
+        assertEquals(1, comparator.compare(albumB2012, albumA2012));
+    }
+
+    public void testCompareDiscNumbers() throws Exception {
+
+        MediaFile discXtrack1 = new MediaFile();
+        discXtrack1.setMediaType(MediaFile.MediaType.MUSIC);
+        discXtrack1.setPath("a");
+        discXtrack1.setTrackNumber(1);
+
+        MediaFile discXtrack2 = new MediaFile();
+        discXtrack2.setMediaType(MediaFile.MediaType.MUSIC);
+        discXtrack2.setPath("a");
+        discXtrack2.setTrackNumber(2);
+
+        MediaFile disc5track1 = new MediaFile();
+        disc5track1.setMediaType(MediaFile.MediaType.MUSIC);
+        disc5track1.setPath("a");
+        disc5track1.setDiscNumber(5);
+        disc5track1.setTrackNumber(1);
+
+        MediaFile disc5track2 = new MediaFile();
+        disc5track2.setMediaType(MediaFile.MediaType.MUSIC);
+        disc5track2.setPath("a");
+        disc5track2.setDiscNumber(5);
+        disc5track2.setTrackNumber(2);
+
+        MediaFile disc6track1 = new MediaFile();
+        disc6track1.setMediaType(MediaFile.MediaType.MUSIC);
+        disc6track1.setPath("a");
+        disc6track1.setDiscNumber(6);
+        disc6track1.setTrackNumber(1);
+
+        MediaFile disc6track2 = new MediaFile();
+        disc6track2.setMediaType(MediaFile.MediaType.MUSIC);
+        disc6track2.setPath("a");
+        disc6track2.setDiscNumber(6);
+        disc6track2.setTrackNumber(2);
+
+        assertEquals(0, comparator.compare(discXtrack1, discXtrack1));
+        assertEquals(0, comparator.compare(disc5track1, disc5track1));
+
+        assertEquals(-1, comparator.compare(discXtrack1, discXtrack2));
+        assertEquals(1, comparator.compare(discXtrack2, discXtrack1));
+
+        assertEquals(-1, comparator.compare(disc5track1, disc5track2));
+        assertEquals(1, comparator.compare(disc6track2, disc5track1));
+
+        assertEquals(-1, comparator.compare(disc5track1, disc6track1));
+        assertEquals(1, comparator.compare(disc6track1, disc5track1));
+
+        assertEquals(-1, comparator.compare(disc5track2, disc6track1));
+        assertEquals(1, comparator.compare(disc6track1, disc5track2));
+
+        assertEquals(-1, comparator.compare(discXtrack1, disc5track1));
+        assertEquals(1, comparator.compare(disc5track1, discXtrack1));
+
+        assertEquals(-1, comparator.compare(discXtrack1, disc5track2));
+        assertEquals(1, comparator.compare(disc5track2, discXtrack1));
+    }
+}