/**
  * Test method for.
  *
  * <p>{@link
  * ext.services.lastfm.LastFmCache#storeArtistImage(ext.services.lastfm.SimilarArtistsInfo,
  * java.awt.Image)} .
  */
 public void testStoreArtistImage() {
   LastFmCache cache = new LastFmCache();
   LastFmSimilarArtists artists = new LastFmSimilarArtists();
   artists.setArtistName("Red Hot Chili Peppers");
   Image cover = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
   cache.storeArtistImage(artists, cover);
   assertNotNull(cache.retrieveArtistImage(artists));
   assertEquals(10, cache.retrieveArtistImage(artists).getHeight(null));
 }
 /**
  * Test method for.
  *
  * <p>{@link
  * ext.services.lastfm.LastFmCache#retrieveArtistImage(ext.services.lastfm.SimilarArtistsInfo)} .
  */
 public void testRetrieveArtistImage() {
   LastFmCache cache = new LastFmCache();
   LastFmSimilarArtists artists = new LastFmSimilarArtists();
   artists.setArtistName("Red Hot Chili Peppers");
   assertNull(cache.retrieveArtistImage(artists));
 }