@Test
  public void next() {
    assertTrue("Next button should be enabled", wizardDialog.isNextEnabled());
    wizardDialog.next();

    CLabel label = new DefaultCLabel();
    assertThat(label.getText(), is("B"));
  }
  @Test
  public void back() {
    wizardDialog.next();
    assertTrue("Back button should be enabled", wizardDialog.isBackEnabled());
    wizardDialog.back();

    CLabel label = new DefaultCLabel();
    assertThat(label.getText(), is("A"));
  }