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

import pytest

from ...tokenizer.test_naughty_strings import NAUGHTY_STRINGS
from spacy.lang.ja import Japanese, DetailedToken

# fmt: off
TOKENIZER_TESTS = [
    ("日本語だよ", ['日本', '語', 'だ', 'よ']),
    ("東京タワーの近くに住んでいます。", ['東京', 'タワー', 'の', '近く', 'に', '住ん', 'で', 'い', 'ます', '。']),
    ("吾輩は猫である。", ['吾輩', 'は', '猫', 'で', 'ある', '。']),
    ("月に代わって、お仕置きよ!", ['月', 'に', '代わっ', 'て', '、', 'お', '仕置き', 'よ', '!']),
    ("すもももももももものうち", ['すもも', 'も', 'もも', 'も', 'もも', 'の', 'うち'])
]

TAG_TESTS = [
    ("日本語だよ", ['名詞-固有名詞-地名-国', '名詞-普通名詞-一般', '助動詞', '助詞-終助詞']),
    ("東京タワーの近くに住んでいます。", ['名詞-固有名詞-地名-一般', '名詞-普通名詞-一般', '助詞-格助詞', '名詞-普通名詞-副詞可能', '助詞-格助詞', '動詞-一般', '助詞-接続助詞', '動詞-非自立可能', '助動詞', '補助記号-句点']),
    ("吾輩は猫である。", ['代名詞', '助詞-係助詞', '名詞-普通名詞-一般', '助動詞', '動詞-非自立可能', '補助記号-句点']),
    ("月に代わって、お仕置きよ!", ['名詞-普通名詞-助数詞可能', '助詞-格助詞', '動詞-一般', '助詞-接続助詞', '補助記号-読点', '接頭辞', '名詞-普通名詞-一般', '助詞-終助詞', '補助記号-句点']),
    ("すもももももももものうち", ['名詞-普通名詞-一般', '助詞-係助詞', '名詞-普通名詞-一般', '助詞-係助詞', '名詞-普通名詞-一般', '助詞-格助詞', '名詞-普通名詞-副詞可能'])
]

POS_TESTS = [
    ('日本語だよ', ['PROPN', 'NOUN', 'AUX', 'PART']),
    ('東京タワーの近くに住んでいます。', ['PROPN', 'NOUN', 'ADP', 'NOUN', 'ADP', 'VERB', 'SCONJ', 'AUX', 'AUX', 'PUNCT']),
    ('吾輩は猫である。', ['PRON', 'ADP', 'NOUN', 'AUX', 'AUX', 'PUNCT']),
    ('月に代わって、お仕置きよ!', ['NOUN', 'ADP', 'VERB', 'SCONJ', 'PUNCT', 'NOUN', 'NOUN', 'PART', 'PUNCT']),
    ('すもももももももものうち', ['NOUN', 'ADP', 'NOUN', 'ADP', 'NOUN', 'ADP', 'NOUN'])
]

SENTENCE_TESTS = [
    ("あれ。これ。", ["あれ。", "これ。"]),
    ("「伝染るんです。」という漫画があります。", ["「伝染るんです。」という漫画があります。"]),
]

tokens1 = [
    DetailedToken(surface="委員", tag="名詞-普通名詞-一般", inf="", lemma="委員", norm="委員", reading="イイン", sub_tokens=None),
    DetailedToken(surface="会", tag="名詞-普通名詞-一般", inf="", lemma="会", norm="会", reading="カイ", sub_tokens=None),
]
tokens2 = [
    DetailedToken(surface="選挙", tag="名詞-普通名詞-サ変可能", inf="", lemma="選挙", norm="選挙", reading="センキョ", sub_tokens=None),
    DetailedToken(surface="管理", tag="名詞-普通名詞-サ変可能", inf="", lemma="管理", norm="管理", reading="カンリ", sub_tokens=None),
    DetailedToken(surface="委員", tag="名詞-普通名詞-一般", inf="", lemma="委員", norm="委員", reading="イイン", sub_tokens=None),
    DetailedToken(surface="会", tag="名詞-普通名詞-一般", inf="", lemma="会", norm="会", reading="カイ", sub_tokens=None),
]
tokens3 = [
    DetailedToken(surface="選挙", tag="名詞-普通名詞-サ変可能", inf="", lemma="選挙", norm="選挙", reading="センキョ", sub_tokens=None),
    DetailedToken(surface="管理", tag="名詞-普通名詞-サ変可能", inf="", lemma="管理", norm="管理", reading="カンリ", sub_tokens=None),
    DetailedToken(surface="委員会", tag="名詞-普通名詞-一般", inf="", lemma="委員会", norm="委員会", reading="イインカイ", sub_tokens=None),
]
SUB_TOKEN_TESTS = [
    ("選挙管理委員会", [None, None, [tokens1]], [[tokens2, tokens3]])
]
# fmt: on


@pytest.mark.issue(2901)
def test_issue2901():
    """Test that `nlp` doesn't fail."""
    try:
        nlp = Japanese()
    except ImportError:
        pytest.skip()

    doc = nlp("pythonが大好きです")
    assert doc


@pytest.mark.parametrize("text,expected_tokens", TOKENIZER_TESTS)
def test_ja_tokenizer(ja_tokenizer, text, expected_tokens):
    tokens = [token.text for token in ja_tokenizer(text)]
    assert tokens == expected_tokens


@pytest.mark.parametrize("text,expected_tags", TAG_TESTS)
def test_ja_tokenizer_tags(ja_tokenizer, text, expected_tags):
    tags = [token.tag_ for token in ja_tokenizer(text)]
    assert tags == expected_tags


@pytest.mark.parametrize("text,expected_pos", POS_TESTS)
def test_ja_tokenizer_pos(ja_tokenizer, text, expected_pos):
    pos = [token.pos_ for token in ja_tokenizer(text)]
    assert pos == expected_pos


@pytest.mark.skip(reason="sentence segmentation in tokenizer is buggy")
@pytest.mark.parametrize("text,expected_sents", SENTENCE_TESTS)
def test_ja_tokenizer_sents(ja_tokenizer, text, expected_sents):
    sents = [str(sent) for sent in ja_tokenizer(text).sents]
    assert sents == expected_sents


def test_ja_tokenizer_extra_spaces(ja_tokenizer):
    # note: three spaces after "I"
    tokens = ja_tokenizer("I   like cheese.")
    assert tokens[1].orth_ == "  "


@pytest.mark.parametrize("text", NAUGHTY_STRINGS)
def test_ja_tokenizer_naughty_strings(ja_tokenizer, text):
    tokens = ja_tokenizer(text)
    assert tokens.text_with_ws == text


@pytest.mark.parametrize(
    "text,len_a,len_b,len_c",
    [
        ("選挙管理委員会", 4, 3, 1),
        ("客室乗務員", 3, 2, 1),
        ("労働者協同組合", 4, 3, 1),
        ("機能性食品", 3, 2, 1),
    ],
)
def test_ja_tokenizer_split_modes(ja_tokenizer, text, len_a, len_b, len_c):
    nlp_a = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "A"}}})
    nlp_b = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "B"}}})
    nlp_c = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "C"}}})

    assert len(ja_tokenizer(text)) == len_a
    assert len(nlp_a(text)) == len_a
    assert len(nlp_b(text)) == len_b
    assert len(nlp_c(text)) == len_c


@pytest.mark.parametrize("text,sub_tokens_list_b,sub_tokens_list_c", SUB_TOKEN_TESTS)
def test_ja_tokenizer_sub_tokens(
    ja_tokenizer, text, sub_tokens_list_b, sub_tokens_list_c
):
    nlp_a = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "A"}}})
    nlp_b = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "B"}}})
    nlp_c = Japanese.from_config({"nlp": {"tokenizer": {"split_mode": "C"}}})

    assert ja_tokenizer(text).user_data.get("sub_tokens") is None
    assert nlp_a(text).user_data.get("sub_tokens") is None
    assert nlp_b(text).user_data["sub_tokens"] == sub_tokens_list_b
    assert nlp_c(text).user_data["sub_tokens"] == sub_tokens_list_c


@pytest.mark.parametrize(
    "text,inflections,reading_forms",
    [
        (
            "取ってつけた",
            (["五段-ラ行;連用形-促音便"], [], ["下一段-カ行;連用形-一般"], ["助動詞-タ;終止形-一般"]),
            (["トッ"], ["テ"], ["ツケ"], ["タ"]),
        ),
        ("2=3", ([], [], []), (["ニ"], ["_"], ["サン"])),
    ],
)
def test_ja_tokenizer_inflections_reading_forms(
    ja_tokenizer, text, inflections, reading_forms
):
    tokens = ja_tokenizer(text)
    test_inflections = [tt.morph.get("Inflection") for tt in tokens]
    assert test_inflections == list(inflections)
    test_readings = [tt.morph.get("Reading") for tt in tokens]
    assert test_readings == list(reading_forms)


def test_ja_tokenizer_emptyish_texts(ja_tokenizer):
    doc = ja_tokenizer("")
    assert len(doc) == 0
    doc = ja_tokenizer(" ")
    assert len(doc) == 1
    doc = ja_tokenizer("\n\n\n \t\t \n\n\n")
    assert len(doc) == 1