ClassifierResult result = classifier.classifyDocument(document, "unknown");
assertNotNull("category is null and it shouldn't be", result);
assertEquals(result + " is not equal to e", "e", result.getLabel());
document = new String[] {"dd"};
result = classifier.classifyDocument(document, "unknown");
assertNotNull("category is null and it shouldn't be", result);
assertEquals(result + " is not equal to d", "d", result.getLabel());
document = new String[] {"cc"};
result = classifier.classifyDocument(document, "unknown");