@Test
  public void testModerateCommentsError() throws Exception {
    expect(ab.moderateComments(3)).andThrow(new RuntimeException("test"));
    control.replay();

    st.moderateComments();
    control.verify();
  }
  @Test
  public void testModerateComments() throws Exception {
    expect(ab.moderateComments(3)).andReturn(true);
    expect(ab.moderateComments(3)).andReturn(false);
    control.replay();

    st.moderateComments();
    control.verify();
  }