private SequencerContext context;
@Before
public void beforeEach() {
sequencer = new ImageMetadataSequencer();
context = new MockSequencerContext();
context.getNamespaceRegistry().register("image", "http://jboss.org/dna/images/1.0");
output = new MockSequencerOutput(context);
cautionGif = this.getClass().getClassLoader().getResource("caution.gif");
cautionJpg = this.getClass().getClassLoader().getResource("caution.jpg");
cautionPict = this.getClass().getClassLoader().getResource("caution.pict");