final ODocument loadedDoc = database.load(rid);
Assert.assertTrue(newDoc.hasSameContentOf(loadedDoc));
Assert.assertTrue(loadedDoc.containsField("map1"));
Assert.assertTrue(loadedDoc.field("map1") instanceof Map<?, ?>);
final Map<String, ODocument> loadedMap1 = loadedDoc.field("map1");
Assert.assertEquals(loadedMap1.size(), 1);
Assert.assertTrue(loadedMap1.containsKey("map2"));