# coding: utf-8
from __future__ import unicode_literals

import pytest
from spacy.vocab import Vocab
from spacy.tokens import Doc
from spacy.lemmatizer import Lemmatizer


@pytest.fixture
def lemmatizer():
    return Lemmatizer(lookup={'dogs': 'dog', 'boxen': 'box', 'mice': 'mouse'})


@pytest.fixture
def vocab(lemmatizer):
    return Vocab(lemmatizer=lemmatizer)


def test_empty_doc(vocab):
    doc = Doc(vocab)
    assert len(doc) == 0


def test_single_word(vocab):
    doc = Doc(vocab, words=['a'])
    assert doc.text == 'a '
    doc = Doc(vocab, words=['a'], spaces=[False])
    assert doc.text == 'a'


def test_lookup_lemmatization(vocab):
    doc = Doc(vocab, words=['dogs', 'dogses'])
    assert doc[0].text == 'dogs'
    assert doc[0].lemma_ == 'dog'
    assert doc[1].text == 'dogses'
    assert doc[1].lemma_ == 'dogses'