public void testExtendedCommit() {
Database database = new Database("Database");
Playlist playlist = new Playlist("Playlist");
assertTrue(library.getRevision() == 1);
assertTrue(library.getDatabaseCount() == 0);
assertTrue(database.getPlaylistCount() == 1); /* masterPlaylist!!! */
Transaction txn = library.beginTransaction();
database.addPlaylist(txn, playlist);
library.addDatabase(txn, database);
txn.commit();
assertTrue(library.getRevision() == 2); /* incremeted with each commit */
assertTrue(library.getDatabaseCount() == 1);
assertTrue(database.getPlaylistCount() == 2);
Transaction txn2 = library.beginTransaction();
database.setName(txn2, "NewDatabaseName");
playlist.setName(txn2, "NewPlaylistName");
library.setName(txn2, "NewLibraryName");
txn2.commit();
assertTrue(library.getRevision() == 3);
assertTrue(library.getDatabaseCount() == 1);
assertTrue(database.getPlaylistCount() == 2);
assertEquals(library.getName(), "NewLibraryName");
assertEquals(database.getName(), "NewDatabaseName");
assertEquals(playlist.getName(), "NewPlaylistName");
Song song1 = new Song("Song1");
Transaction txn3 = library.beginTransaction();
playlist.addSong(txn3, song1);
txn3.commit();
assertTrue(library.getRevision() == 4);
assertTrue(library.getDatabaseCount() == 1);
assertTrue(database.getPlaylistCount() == 2);
assertTrue(playlist.getSongCount() == 1 && playlist.containsSong(song1));
assertTrue(database.getSongCount() == 1 && database.containsSong(song1));
Playlist masterPlaylist = database.getMasterPlaylist();
assertFalse(masterPlaylist.getSongCount() == 1 && masterPlaylist.containsSong(song1));
}
public void testRollback() {
assertTrue(library.getRevision() == 1);
Transaction txn = library.beginTransaction();
Database database = new Database("Database");
library.addDatabase(txn, database);
txn.rollback();
assertTrue(library.getRevision() == 1);
assertTrue(library.getDatabaseCount() == 0);
}