List<Chunk> chunks = chapters.get(0).getSections().get(0).getChunks();
Assert.assertEquals(1, chunks.size());
Assert.assertEquals(ParagraphChunk.class, chunks.get(0).getClass());
ParagraphChunk paragraphChunk = (ParagraphChunk) chunks.get(0);
Assert.assertEquals("Algum texto de parágrafo", paragraphChunk.getContent());
}