List<Chunk> chunks = chapters.get(0).getSections().get(0).getChunks();
Assert.assertEquals(1, chunks.size());
Chunk chunk = chunks.get(0);
Assert.assertEquals(CenteredParagraphChunk.class, chunk.getClass());
CenteredParagraphChunk castChunk = (CenteredParagraphChunk) chunk;
Assert.assertEquals("Algum texto centralizado\n\nCom várias linhas", castChunk.getContent());
}