@Test
public void reword() throws Exception {
RewordCommitOperation op = new RewordCommitOperation(
testRepository.getRepository(), commit, "new message");
op.execute(new NullProgressMonitor());
LogCommand log = new Git(testRepository.getRepository()).log();
RevCommit newCommit = log.call().iterator().next();
assertEquals("new message", newCommit.getFullMessage());
}