* @throws Exception
*/
@Test
public void authorCloneFilter() throws Exception {
CommitHistogramFilter filter = new AuthorHistogramFilter();
RevFilter clone = filter.clone();
assertNotNull(clone);
assertNotSame(filter, clone);
assertTrue(clone instanceof AuthorHistogramFilter);
AuthorHistogramFilter clonedFilter = (AuthorHistogramFilter) clone;
assertNotNull(clonedFilter.getHistogram());