spaCy/spacy/tests/lang/ru/test_tokenizer.py

# coding: utf-8
from __future__ import unicode_literals

import pytest


PUNCT_OPEN = ['(', '[', '{', '*']
PUNCT_CLOSE = [')', ']', '}', '*']
PUNCT_PAIRED = [('(', ')'),  ('[', ']'), ('{', '}'), ('*', '*')]


@pytest.mark.parametrize('text', ["(", "((", "<"])
def test_ru_tokenizer_handles_only_punct(ru_tokenizer, text):
    tokens = ru_tokenizer(text)
    assert len(tokens) == len(text)


@pytest.mark.parametrize('punct', PUNCT_OPEN)
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_open_punct(ru_tokenizer, punct, text):
    tokens = ru_tokenizer(punct + text)
    assert len(tokens) == 2
    assert tokens[0].text == punct
    assert tokens[1].text == text


@pytest.mark.parametrize('punct', PUNCT_CLOSE)
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_close_punct(ru_tokenizer, punct, text):
    tokens = ru_tokenizer(text + punct)
    assert len(tokens) == 2
    assert tokens[0].text == text
    assert tokens[1].text == punct


@pytest.mark.parametrize('punct', PUNCT_OPEN)
@pytest.mark.parametrize('punct_add', ["`"])
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_two_diff_open_punct(ru_tokenizer, punct, punct_add, text):
    tokens = ru_tokenizer(punct + punct_add + text)
    assert len(tokens) == 3
    assert tokens[0].text == punct
    assert tokens[1].text == punct_add
    assert tokens[2].text == text


@pytest.mark.parametrize('punct', PUNCT_CLOSE)
@pytest.mark.parametrize('punct_add', ["'"])
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_two_diff_close_punct(ru_tokenizer, punct, punct_add, text):
    tokens = ru_tokenizer(text + punct + punct_add)
    assert len(tokens) == 3
    assert tokens[0].text == text
    assert tokens[1].text == punct
    assert tokens[2].text == punct_add


@pytest.mark.parametrize('punct', PUNCT_OPEN)
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_same_open_punct(ru_tokenizer, punct, text):
    tokens = ru_tokenizer(punct + punct + punct + text)
    assert len(tokens) == 4
    assert tokens[0].text == punct
    assert tokens[3].text == text


@pytest.mark.parametrize('punct', PUNCT_CLOSE)
@pytest.mark.parametrize('text', ["Привет"])
def test_ru_tokenizer_splits_same_close_punct(ru_tokenizer, punct, text):
    tokens = ru_tokenizer(text + punct + punct + punct)
    assert len(tokens) == 4
    assert tokens[0].text == text
    assert tokens[1].text == punct


@pytest.mark.parametrize('text', ["'Тест"])
def test_ru_tokenizer_splits_open_appostrophe(ru_tokenizer, text):
    tokens = ru_tokenizer(text)
    assert len(tokens) == 2
    assert tokens[0].text == "'"


@pytest.mark.parametrize('text', ["Тест''"])
def test_ru_tokenizer_splits_double_end_quote(ru_tokenizer, text):
    tokens = ru_tokenizer(text)
    assert len(tokens) == 2
    tokens_punct = ru_tokenizer("''")
    assert len(tokens_punct) == 1


@pytest.mark.parametrize('punct_open,punct_close', PUNCT_PAIRED)
@pytest.mark.parametrize('text', ["Тест"])
def test_ru_tokenizer_splits_open_close_punct(ru_tokenizer, punct_open,
                                              punct_close, text):
    tokens = ru_tokenizer(punct_open + text + punct_close)
    assert len(tokens) == 3
    assert tokens[0].text == punct_open
    assert tokens[1].text == text
    assert tokens[2].text == punct_close


@pytest.mark.parametrize('punct_open,punct_close', PUNCT_PAIRED)
@pytest.mark.parametrize('punct_open2,punct_close2', [("`", "'")])
@pytest.mark.parametrize('text', ["Тест"])
def test_ru_tokenizer_two_diff_punct(ru_tokenizer, punct_open, punct_close,
                                     punct_open2, punct_close2, text):
    tokens = ru_tokenizer(punct_open2 + punct_open + text + punct_close + punct_close2)
    assert len(tokens) == 5
    assert tokens[0].text == punct_open2
    assert tokens[1].text == punct_open
    assert tokens[2].text == text
    assert tokens[3].text == punct_close
    assert tokens[4].text == punct_close2


@pytest.mark.parametrize('text', ["Тест."])
def test_ru_tokenizer_splits_trailing_dot(ru_tokenizer, text):
    tokens = ru_tokenizer(text)
    assert tokens[1].text == "."


def test_ru_tokenizer_splits_bracket_period(ru_tokenizer):
    text = "(Раз, два, три, проверка)."
    tokens = ru_tokenizer(text)
    assert tokens[len(tokens) - 1].text == "."