Add unit test for AlbumAccessor.

diff --git a/src/test/java/net/pterodactylus/sone/template/AlbumAccessorTest.java b/src/test/java/net/pterodactylus/sone/template/AlbumAccessorTest.java
new file mode 100644 (file)
index 0000000..0bcda36
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+++ b/src/test/java/net/pterodactylus/sone/template/AlbumAccessorTest.java
@@ -0,0 +1,133 @@
+/*
+ * Sone - AlbumAccessorTest.java - Copyright © 2013 David Roden
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.template;
+
+import static com.google.common.base.Optional.of;
+import static net.pterodactylus.sone.template.SoneAccessor.getNiceName;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.nullValue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.List;
+
+import net.pterodactylus.sone.data.Album;
+import net.pterodactylus.sone.data.Image;
+import net.pterodactylus.sone.data.Mocks;
+import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.template.AlbumAccessor.Link;
+
+import com.google.common.base.Optional;
+import org.junit.Test;
+
+/**
+ * Unit test for {@link AlbumAccessor}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class AlbumAccessorTest {
+
+       private final Mocks mocks = new Mocks();
+       private final Sone sone = mocks.mockSone("Sone").withName("Sone").withProfileName("S.", "O.", "Ne").create();
+       private final AlbumAccessor albumAccessor = new AlbumAccessor();
+
+       @Test
+       public void generateSingleBacklinkForRootAlbum() {
+               Album rootAlbum = createRootAlbum("AlbumId");
+               List<Link> backlinks = (List<Link>) albumAccessor.get(null, rootAlbum, "backlinks");
+               verifyAlbums(backlinks, rootAlbum);
+       }
+
+       @Test
+       public void generateBacklinksForNestedAlbums() {
+               Album rootAlbum = createRootAlbum("RootAlbum");
+               Album firstLevelAlbum = createNestedAlbum(rootAlbum, "FirstLevel");
+               Album secondLevelAlbum = createNestedAlbum(firstLevelAlbum, "SecondLevel");
+               List<Link> backlinks = (List<Link>) albumAccessor.get(null, secondLevelAlbum, "backlinks");
+               verifyAlbums(backlinks, secondLevelAlbum);
+       }
+
+       @Test
+       public void returnAlbumImage() {
+               Album album = createRootAlbum("AlbumId");
+               Image albumImage = mock(Image.class);
+               when(album.getAlbumImage()).thenReturn(of(albumImage));
+               Image image = (Image) albumAccessor.get(null, album, "albumImage");
+               assertThat(image, is(albumImage));
+       }
+
+       @Test
+       public void returnNonExistingAlbumImage() {
+               Album album = createRootAlbum("AlbumId");
+               when(album.getAlbumImage()).thenReturn(Optional.<Image>absent());
+               Image image = (Image) albumAccessor.get(null, album, "albumImage");
+               assertThat(image, nullValue());
+       }
+
+       @Test
+       public void reflectionAccessorIsUsed() {
+               Album album = mock(Album.class);
+               when(album.getId()).thenReturn("Album");
+               assertThat(albumAccessor.get(null, album, "id"), is((Object) "Album"));
+       }
+
+       private void verifyAlbums(List<Link> backlinks, Album album) {
+               assertThat(backlinks, hasSize(findAlbumLevel(album)));
+               Album currentAlbum = album;
+               int currentIndex = backlinks.size() - 1;
+               while (!currentAlbum.isRoot()) {
+                       assertThat(backlinks.get(currentIndex).getTarget(), containsString(currentAlbum.getId()));
+                       assertThat(backlinks.get(currentIndex).getName(), is(currentAlbum.getTitle()));
+                       currentIndex--;
+                       currentAlbum = currentAlbum.getParent();
+               }
+               assertThat(backlinks.get(0).getTarget(), containsString(currentAlbum.getSone().getId()));
+               assertThat(backlinks.get(0).getName(), is(getNiceName(currentAlbum.getSone())));
+       }
+
+       private int findAlbumLevel(Album album) {
+               int albumLevel = 1;
+               Album currentAlbum = album;
+               while (!currentAlbum.isRoot()) {
+                       albumLevel++;
+                       currentAlbum = currentAlbum.getParent();
+               }
+               return albumLevel;
+       }
+
+       private Album createRootAlbum(String id) {
+               Album album = mock(Album.class);
+               when(album.getId()).thenReturn(id);
+               when(album.isRoot()).thenReturn(true);
+               when(album.getSone()).thenReturn(sone);
+               return album;
+       }
+
+       private Album createNestedAlbum(Album parentAlbum, String id) {
+               Album album = mock(Album.class);
+               when(album.getId()).thenReturn(id);
+               when(album.isRoot()).thenReturn(false);
+               when(album.getSone()).thenReturn(sone);
+               when(album.getParent()).thenReturn(parentAlbum);
+               return album;
+       }
+
+}