def test_unknown_number_of_signs():
    unknown_number_of_signs = UnknownNumberOfSigns(
        frozenset({EnclosureType.BROKEN_AWAY}), ErasureState.NONE
    )

    expected_value = "..."
    assert unknown_number_of_signs.value == expected_value
    assert unknown_number_of_signs.clean_value == expected_value
    assert unknown_number_of_signs.get_key() == f"UnknownNumberOfSigns⁝{expected_value}"
    assert unknown_number_of_signs.lemmatizable is False

    serialized = {"type": "UnknownNumberOfSigns"}
    assert_token_serialization(unknown_number_of_signs, serialized)
def test_text_line_of_iterable(code: str, language: Language) -> None:
    tokens = [
        Word.of([Reading.of_name("first")]),
        LanguageShift.of(code),
        Word.of([Reading.of_name("second")]),
        LanguageShift.of("%sb"),
        LoneDeterminative.of([Determinative.of([Reading.of_name("third")])]),
        Word.of([BrokenAway.open(),
                 Reading.of_name("fourth")]),
        UnknownNumberOfSigns.of(),
        BrokenAway.close(),
    ]
    expected_tokens = (
        Word.of([Reading.of_name("first")], DEFAULT_LANGUAGE),
        LanguageShift.of(code),
        Word.of([Reading.of_name("second")], language),
        LanguageShift.of("%sb"),
        LoneDeterminative.of([Determinative.of([Reading.of_name("third")])],
                             Language.AKKADIAN),
        Word.of(
            [
                BrokenAway.open(),
                Reading.of((ValueToken(
                    frozenset({EnclosureType.BROKEN_AWAY}),
                    ErasureState.NONE,
                    "fourth",
                ), )).set_enclosure_type(frozenset({EnclosureType.BROKEN_AWAY
                                                    })),
            ],
            DEFAULT_LANGUAGE,
        ),
        UnknownNumberOfSigns(frozenset({EnclosureType.BROKEN_AWAY}),
                             ErasureState.NONE),
        BrokenAway.close().set_enclosure_type(
            frozenset({EnclosureType.BROKEN_AWAY})),
    )
    line = TextLine.of_iterable(LINE_NUMBER, tokens)

    assert line.line_number == LINE_NUMBER
    assert line.content == expected_tokens
    assert (
        line.key ==
        f"TextLine⁞{line.atf}⟨{'⁚'.join(token.get_key() for token in expected_tokens)}⟩"
    )
    assert line.atf == f"1. first {code} second %sb {{third}} [fourth ...]"
class LineVariantFactory(factory.Factory):
    class Meta:
        model = LineVariant

    class Params:
        manuscript_id = factory.Sequence(lambda n: n)
        manuscript = factory.SubFactory(
            ManuscriptLineFactory,
            manuscript_id=factory.SelfAttribute("..manuscript_id"),
        )

    reconstruction = (
        LanguageShift.normalized_akkadian(),
        AkkadianWord.of((ValueToken.of("buāru"),)),
        MetricalFootSeparator.uncertain(),
        BrokenAway.open(),
        UnknownNumberOfSigns.of(),
        Caesura.certain(),
        AkkadianWord.of(
            (
                UnknownNumberOfSigns.of(),
                BrokenAway.close(),
                Joiner.hyphen(),
                ValueToken.of("buāru"),
            ),
            (Flag.DAMAGE,),
        ),
    )
    note = factory.fuzzy.FuzzyChoice([None, NoteLine((StringPart("a note"),))])
    manuscripts = factory.List([factory.SelfAttribute("..manuscript")], TupleFactory)
    intertext = factory.fuzzy.FuzzyChoice([tuple(), (StringPart("bar"),)])
    parallel_lines = factory.List(
        [
            factory.SubFactory(ParallelCompositionFactory),
            factory.SubFactory(ParallelTextFactory),
            factory.SubFactory(ParallelFragmentFactory),
        ],
        TupleFactory,
    )
def test_lemmatization() -> None:
    line = TextLine.of_iterable(
        LINE_NUMBER,
        [
            Word.of([Reading.of_name("bu")], unique_lemma=(WordId("nu I"), )),
            UnknownNumberOfSigns.of(),
            Word.of([Reading.of_name("nu")]),
        ],
    )

    assert line.lemmatization == (
        LemmatizationToken("bu", (WordId("nu I"), )),
        LemmatizationToken("..."),
        LemmatizationToken("nu", tuple()),
    )
Example #5
0
def expected_transliteration(language: Language) -> Sequence[Token]:
    return (
        Word.of([Reading.of_name("bu")], language),
        LanguageShift.of("%es"),
        Word.of(
            [
                BrokenAway.open(),
                Reading.of((ValueToken(
                    frozenset({EnclosureType.BROKEN_AWAY}),
                    ErasureState.NONE,
                    "kur",
                ), )).set_enclosure_type(frozenset({EnclosureType.BROKEN_AWAY
                                                    })),
            ],
            Language.EMESAL,
        ),
        UnknownNumberOfSigns(frozenset({EnclosureType.BROKEN_AWAY}),
                             ErasureState.NONE),
        BrokenAway.close().set_enclosure_type(
            frozenset({EnclosureType.BROKEN_AWAY})),
    )
Example #6
0
from ebl.transliteration.domain.sign_tokens import Reading
from ebl.transliteration.domain.tokens import (
    EnclosureType,
    ErasureState,
    LanguageShift,
    Token,
    UnknownNumberOfSigns,
    ValueToken,
)
from ebl.transliteration.domain.word_tokens import Word

TRANSLITERATION: Sequence[Token] = (
    Word.of([Reading.of_name("bu")]),
    LanguageShift.of("%es"),
    Word.of([BrokenAway.open(), Reading.of_name("kur")]),
    UnknownNumberOfSigns.of(),
    BrokenAway.close(),
)
EXPECTED_ATF = "bu %es [kur ...]"


def expected_transliteration(language: Language) -> Sequence[Token]:
    return (
        Word.of([Reading.of_name("bu")], language),
        LanguageShift.of("%es"),
        Word.of(
            [
                BrokenAway.open(),
                Reading.of((ValueToken(
                    frozenset({EnclosureType.BROKEN_AWAY}),
                    ErasureState.NONE,
class LemmatizedFragmentFactory(TransliteratedFragmentFactory):
    text = Text((
        TextLine.of_iterable(
            LineNumber(1, True),
            (
                Word.of([UnidentifiedSign.of()]),
                Word.of([
                    Logogram.of_name(
                        "BA",
                        surrogate=[
                            Reading.of_name("ku"),
                            Joiner.hyphen(),
                            Reading.of_name("u", 4),
                        ],
                    )
                ]),
                Column.of(),
                Tabulation.of(),
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    Joiner.hyphen(),
                    Reading.of_name("ku"),
                    BrokenAway.close(),
                    Joiner.hyphen(),
                    Reading.of_name("nu"),
                    Joiner.hyphen(),
                    Reading.of_name("ši"),
                ]),
                Variant.of(Divider.of(":"), Reading.of_name("ku")),
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    BrokenAway.close(),
                ]),
                Column.of(2),
                Divider.of(":", ("@v", ), (Flag.DAMAGE, )),
                CommentaryProtocol.of("!qt"),
                Word.of([Number.of_name("10", flags=[Flag.DAMAGE])]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(2, True),
            (
                Word.of([BrokenAway.open(),
                         UnknownNumberOfSigns.of()]),
                Word.of([Logogram.of_name("GI", 6)],
                        unique_lemma=(WordId("ginâ I"), )),
                Word.of([Reading.of_name("ana")],
                        unique_lemma=(WordId("ana I"), )),
                Word.of(
                    [
                        Reading.of_name("u₄"),
                        Joiner.hyphen(),
                        Reading.of_name("š[u"),
                    ],
                    unique_lemma=(WordId("ūsu I"), ),
                ),
                Word.of([UnknownNumberOfSigns.of(),
                         BrokenAway.close()]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(3, True),
            (
                Word.of([BrokenAway.open(),
                         UnknownNumberOfSigns.of()]),
                Word.of(
                    unique_lemma=(WordId("kīdu I"), ),
                    parts=[
                        Reading.of((
                            ValueToken.of("k"),
                            BrokenAway.close(),
                            ValueToken.of("i"),
                        )),
                        Joiner.hyphen(),
                        Reading.of_name("du"),
                    ],
                ),
                Word.of(unique_lemma=(WordId("u I"), ),
                        parts=[Reading.of_name("u")]),
                Word.of(
                    unique_lemma=(WordId("bamātu I"), ),
                    parts=[
                        Reading.of_name("ba"),
                        Joiner.hyphen(),
                        Reading.of_name("ma"),
                        Joiner.hyphen(),
                        Reading.of((
                            ValueToken.of("t"),
                            BrokenAway.open(),
                            ValueToken.of("i"),
                        )),
                    ],
                ),
                Word.of([UnknownNumberOfSigns.of(),
                         BrokenAway.close()]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(6, True),
            (
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    BrokenAway.close(),
                ]),
                Word.of([UnclearSign.of([Flag.DAMAGE])]),
                Word.of(unique_lemma=(WordId("mu I"), ),
                        parts=[Reading.of_name("mu")]),
                Word.of(
                    unique_lemma=(WordId("tamalāku I"), ),
                    parts=[
                        Reading.of_name("ta"),
                        Joiner.hyphen(),
                        Reading.of_name("ma"),
                        InWordNewline.of(),
                        Joiner.hyphen(),
                        Reading.of_name("tu", 2),
                    ],
                ),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(7, True),
            (
                Word.of([
                    Variant.of(Reading.of_name("šu"),
                               CompoundGrapheme.of(["BI×IS"]))
                ]),
                LanguageShift.normalized_akkadian(),
                AkkadianWord.of([ValueToken.of("kur")],
                                unique_lemma=(WordId("normalized I"), )),
            ),
        ),
        StateDollarLine(
            atf.Qualification.AT_LEAST,
            1,
            ScopeContainer(atf.Surface.OBVERSE, ""),
            atf.State.MISSING,
            None,
        ),
        ImageDollarLine("1", None, "numbered diagram of triangle"),
        RulingDollarLine(atf.Ruling.SINGLE),
        LooseDollarLine("this is a loose line"),
        SealDollarLine(1),
        SealAtLine(1),
        HeadingAtLine(1),
        ColumnAtLine(ColumnLabel([atf.Status.COLLATION], 1)),
        SurfaceAtLine(
            SurfaceLabel([atf.Status.COLLATION], atf.Surface.SURFACE,
                         "stone wig")),
        ObjectAtLine(
            ObjectLabel([atf.Status.COLLATION], atf.Object.OBJECT,
                        "stone wig")),
        DiscourseAtLine(atf.Discourse.DATE),
        DivisionAtLine("paragraph", 5),
        CompositeAtLine(atf.Composite.DIV, "part", 1),
        NoteLine((
            StringPart("a note "),
            EmphasisPart("italic"),
            LanguagePart.of_transliteration(
                Language.AKKADIAN, (Word.of([Reading.of_name("bu")]), )),
        )),
        ParallelComposition(False, "my name", LineNumber(1)),
        ParallelText(
            True,
            TextId(CorpusGenre.LITERATURE, 1, 1),
            ChapterName(Stage.OLD_BABYLONIAN, "", "my name"),
            LineNumber(1),
            False,
        ),
        ParallelFragment(False, MuseumNumber.of("K.1"), True, Labels(),
                         LineNumber(1), False),
    ))
class TransliteratedFragmentFactory(FragmentFactory):
    text = Text((
        TextLine.of_iterable(
            LineNumber(1, True),
            (
                Word.of([UnidentifiedSign.of()]),
                Word.of([
                    Logogram.of_name(
                        "BA",
                        surrogate=[
                            Reading.of_name("ku"),
                            Joiner.hyphen(),
                            Reading.of_name("u", 4),
                        ],
                    )
                ]),
                Column.of(),
                Tabulation.of(),
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    Joiner.hyphen(),
                    Reading.of_name("ku"),
                    BrokenAway.close(),
                    Joiner.hyphen(),
                    Reading.of_name("nu"),
                    Joiner.hyphen(),
                    Reading.of_name("ši"),
                ]),
                Variant.of(Divider.of(":"), Reading.of_name("ku")),
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    BrokenAway.close(),
                ]),
                Column.of(2),
                Divider.of(":", ("@v", ), (Flag.DAMAGE, )),
                CommentaryProtocol.of("!qt"),
                Word.of([Number.of_name("10", flags=[Flag.DAMAGE])]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(2, True),
            (
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    BrokenAway.close(),
                ]),
                Word.of([Logogram.of_name("GI", 6)]),
                Word.of([Reading.of_name("ana")]),
                Word.of([
                    Reading.of_name("u", 4),
                    Joiner.hyphen(),
                    Reading.of((
                        ValueToken.of("š"),
                        BrokenAway.open(),
                        ValueToken.of("u"),
                    )),
                ]),
                Word.of([UnknownNumberOfSigns.of(),
                         BrokenAway.close()]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(3, True),
            (
                Word.of([BrokenAway.open(),
                         UnknownNumberOfSigns.of()]),
                Word.of([
                    Reading.of((
                        ValueToken.of("k"),
                        BrokenAway.close(),
                        ValueToken.of("i"),
                    )),
                    Joiner.hyphen(),
                    Reading.of_name("du"),
                ]),
                Word.of([Reading.of_name("u")]),
                Word.of([
                    Reading.of_name("ba"),
                    Joiner.hyphen(),
                    Reading.of_name("ma"),
                    Joiner.hyphen(),
                    Reading.of((
                        ValueToken.of("t"),
                        BrokenAway.open(),
                        ValueToken.of("i"),
                    )),
                ]),
                Word.of([UnknownNumberOfSigns.of(),
                         BrokenAway.close()]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(6, True),
            (
                Word.of([
                    BrokenAway.open(),
                    UnknownNumberOfSigns.of(),
                    BrokenAway.close(),
                ]),
                Word.of([UnclearSign.of([Flag.DAMAGE])]),
                Word.of([Reading.of_name("mu")]),
                Word.of([
                    Reading.of_name("ta"),
                    Joiner.hyphen(),
                    Reading.of_name("ma"),
                    InWordNewline.of(),
                    Joiner.hyphen(),
                    Reading.of_name("tu", 2),
                ]),
            ),
        ),
        TextLine.of_iterable(
            LineNumber(7, True),
            (
                Word.of([
                    Variant.of(Reading.of_name("šu"),
                               CompoundGrapheme.of(["BI×IS"]))
                ]),
                LanguageShift.normalized_akkadian(),
                AkkadianWord.of([ValueToken.of("kur")]),
            ),
        ),
        StateDollarLine(
            atf.Qualification.AT_LEAST,
            1,
            ScopeContainer(atf.Surface.OBVERSE, ""),
            atf.State.MISSING,
            None,
        ),
        ImageDollarLine("1", None, "numbered diagram of triangle"),
        RulingDollarLine(atf.Ruling.SINGLE),
        LooseDollarLine("this is a loose line"),
        SealDollarLine(1),
        SealAtLine(1),
        HeadingAtLine(1),
        ColumnAtLine(ColumnLabel([atf.Status.COLLATION], 1)),
        SurfaceAtLine(
            SurfaceLabel([atf.Status.COLLATION], atf.Surface.SURFACE,
                         "stone wig")),
        ObjectAtLine(
            ObjectLabel([atf.Status.COLLATION], atf.Object.OBJECT,
                        "stone wig")),
        DiscourseAtLine(atf.Discourse.DATE),
        DivisionAtLine("paragraph", 5),
        CompositeAtLine(atf.Composite.DIV, "part", 1),
        NoteLine((
            StringPart("a note "),
            EmphasisPart("italic"),
            LanguagePart.of_transliteration(
                Language.AKKADIAN, (Word.of([Reading.of_name("bu")]), )),
        )),
        ParallelComposition(False, "my name", LineNumber(1)),
        ParallelText(
            True,
            TextId(CorpusGenre.LITERATURE, 1, 1),
            ChapterName(Stage.OLD_BABYLONIAN, "", "my name"),
            LineNumber(1),
            False,
        ),
        ParallelFragment(False, MuseumNumber.of("K.1"), True, Labels(),
                         LineNumber(1), False),
    ))
    signs = (
        "X BA KU ABZ075 ABZ207a\\u002F207b\\u0020X ABZ377n1/KU ABZ377n1 ABZ411\n"
        "MI DIŠ UD ŠU\n"
        "KI DU ABZ411 BA MA TI\n"
        "X MU TA MA UD\n"
        "ŠU/|BI×IS|")
    folios = Folios((Folio("WGL", "3"), Folio("XXX", "3")))
    record = Record((RecordEntry("test", RecordType.TRANSLITERATION), ))
    line_to_vec = ((
        LineToVecEncoding.TEXT_LINE,
        LineToVecEncoding.TEXT_LINE,
        LineToVecEncoding.TEXT_LINE,
        LineToVecEncoding.TEXT_LINE,
        LineToVecEncoding.TEXT_LINE,
        LineToVecEncoding.SINGLE_RULING,
    ), )
from ebl.transliteration.domain.language import Language
from ebl.transliteration.domain.sign_tokens import Divider, Reading
from ebl.transliteration.domain.tokens import (
    Column,
    CommentaryProtocol,
    ErasureState,
    Joiner,
    LanguageShift,
    Tabulation,
    UnknownNumberOfSigns,
    ValueToken,
    Variant,
)

TOKENS = [
    UnknownNumberOfSigns(frozenset({EnclosureType.BROKEN_AWAY}), ErasureState.NONE),
    LanguageShift.of("%sux"),
    DocumentOrientedGloss.open(),
]


def test_value_token():
    value = "value"
    token = ValueToken.of(value)
    equal = ValueToken.of(value)
    other = ValueToken.of("anothervalue")

    assert token.value == value
    assert token.clean_value == value
    assert token.get_key() == f"ValueToken⁝{value}"
    assert token.lemmatizable is False
    ValueToken,
    Variant,
)
from ebl.transliteration.domain.unknown_sign_tokens import UnclearSign, UnidentifiedSign
from ebl.transliteration.domain.word_tokens import (
    ErasureState,
    InWordNewline,
    LoneDeterminative,
    Word,
)


@pytest.mark.parametrize(  # pyre-ignore[56]
    "atf,expected",
    [
        ("...", Word.of([UnknownNumberOfSigns.of()])),
        ("x", Word.of([UnclearSign.of()])),
        ("X", Word.of([UnidentifiedSign.of()])),
        ("x?", Word.of([UnclearSign.of([atf.Flag.UNCERTAIN])])),
        ("X#", Word.of([UnidentifiedSign.of([atf.Flag.DAMAGE])])),
        ("12", Word.of([Number.of_name("12")])),
        (
            "1]2",
            Word.of([
                Number.of((ValueToken.of("1"), BrokenAway.close(),
                           ValueToken.of("2")))
            ]),
        ),
        (
            "1[2",
            Word.of([
Example #11
0
 def make_token(self, data, **kwargs):
     return UnknownNumberOfSigns(frozenset(data["enclosure_type"]), data["erasure"])

@pytest.mark.parametrize("parser,version",
                         [(parse_atf_lark, f"{atf.ATF_PARSER_VERSION}")])
def test_parser_version(parser, version):
    assert parser("1. kur").parser_version == version


@pytest.mark.parametrize(  # pyre-ignore[56]
    "line,expected_tokens",
    [
        (
            "1′. ...",
            [
                TextLine.of_iterable(LineNumber(1, True), (Word.of(
                    (UnknownNumberOfSigns.of(), )), ))
            ],
        ),
        (
            "1’. ...",
            [
                TextLine.of_iterable(LineNumber(1, True), (Word.of(
                    (UnknownNumberOfSigns.of(), )), ))
            ],
        ),
        (
            "D+113'a. ...",
            [
                TextLine.of_iterable(
                    LineNumber(113, True, "D", "a"),
                    (Word.of((UnknownNumberOfSigns.of(), )), ),
    Joiner,
)
from ebl.transliteration.domain.unknown_sign_tokens import UnclearSign, UnidentifiedSign
from ebl.transliteration.domain.word_tokens import Word


def map_line(atf) -> Sequence[Token]:
    visitor = EnclosureUpdater()
    parse_line(f"1. {atf}").accept(visitor)
    return visitor.tokens


@pytest.mark.parametrize(
    "atf, expected",
    [
        ("...", (Word.of((UnknownNumberOfSigns.of(), )), )),
        (
            "[...]",
            (Word.of((
                BrokenAway.open(),
                UnknownNumberOfSigns(frozenset({EnclosureType.BROKEN_AWAY}),
                                     ErasureState.NONE),
                BrokenAway.close().set_enclosure_type(
                    frozenset({EnclosureType.BROKEN_AWAY})),
            )), ),
        ),
        (
            "(...)",
            (Word.of((
                PerhapsBrokenAway.open(),
                UnknownNumberOfSigns(frozenset({EnclosureType.PERHAPS}),
 ("<ibnû>", [Emendation.open(), ValueToken.of("ibnû"), Emendation.close(), []]),
 ("ib<nû", [ValueToken.of("ib"), Emendation.open(), ValueToken.of("nû"), []]),
 ("ib>nû", [ValueToken.of("ib"), Emendation.close(), ValueToken.of("nû"), []]),
 (
     "i<b>nû",
     [
         ValueToken.of("i"),
         Emendation.open(),
         ValueToken.of("b"),
         Emendation.close(),
         ValueToken.of("nû"),
         [],
     ],
 ),
 ("ibnû?>", [ValueToken.of("ibnû"), Emendation.close(), [Flag.UNCERTAIN]]),
 ("...ibnû", [UnknownNumberOfSigns.of(), ValueToken.of("ibnû"), []]),
 ("ibnû...", [ValueToken.of("ibnû"), UnknownNumberOfSigns.of(), []]),
 (
     "ib...nû",
     [ValueToken.of("ib"), UnknownNumberOfSigns.of(), ValueToken.of("nû"), []],
 ),
 (
     "<...ibnû",
     [Emendation.open(), UnknownNumberOfSigns.of(), ValueToken.of("ibnû"), []],
 ),
 (
     "ibnû...>",
     [ValueToken.of("ibnû"), UnknownNumberOfSigns.of(), Emendation.close(), []],
 ),
 (
     "...>ibnû",
                BrokenAway.close(),
            )),
            "[(<ib)nû>]",
            True,
        ),
        (
            AkkadianWord.of(
                (ValueToken.of("ibnû"), PerhapsBrokenAway.close(),
                 BrokenAway.close()),
                (Flag.UNCERTAIN, ),
            ),
            "ibnû?)]",
            True,
        ),
        (
            AkkadianWord.of((ValueToken.of("ib"), UnknownNumberOfSigns.of(),
                             ValueToken.of("nû"))),
            "ib...nû",
            False,
        ),
        (
            AkkadianWord.of(
                (ValueToken.of("ib"), Joiner.hyphen(), ValueToken.of("nû"))),
            "ib-nû",
            True,
        ),
    ],
)
def test_akkadian_word(word: AkkadianWord, expected: str,
                       lemmatizable: bool) -> None:
    assert word.value == expected
 def ebl_atf_text_line__unknown_number_of_signs(self, _):
     return UnknownNumberOfSigns.of()
def test_extant_lines_mixed_sides() -> None:
    manuscript = Manuscript(
        MANUSCRIPT_ID,
        siglum_disambiguator="1",
        period_modifier=PeriodModifier.NONE,
        period=Period.LATE_BABYLONIAN,
        provenance=Provenance.BABYLON,
        type=ManuscriptType.SCHOOL,
    )
    manuscript_line = ManuscriptLine(
        MANUSCRIPT_ID,
        LABELS,
        TextLine(
            LineNumberRange(LineNumber(1), LineNumber(3, suffix_modifier="b")),
            (UnknownNumberOfSigns.of(), ),
        ),
        PARATEXT,
        OMITTED_WORDS,
    )
    manuscript_line2 = ManuscriptLine(
        MANUSCRIPT_ID,
        tuple(),
        TextLine(LineNumber(2), (UnknownNumberOfSigns.of(), )),
        PARATEXT,
        OMITTED_WORDS,
    )
    manuscript_line3 = ManuscriptLine(
        MANUSCRIPT_ID,
        LABELS,
        TextLine(LineNumber(3), (UnknownNumberOfSigns.of(), )),
        PARATEXT,
        OMITTED_WORDS,
    )
    chapter = Chapter(
        TEXT_ID,
        manuscripts=(manuscript, ),
        lines=(
            Line(
                LineNumber(1),
                (LineVariant(LINE_RECONSTRUCTION, NOTE,
                             (manuscript_line, ), PARALLEL_LINES), ),
            ),
            Line(
                LineNumber(2),
                (LineVariant(LINE_RECONSTRUCTION, NOTE,
                             (manuscript_line2, ), PARALLEL_LINES), ),
            ),
            Line(
                LineNumber(3),
                (LineVariant(LINE_RECONSTRUCTION, NOTE,
                             (manuscript_line3, ), PARALLEL_LINES), ),
            ),
        ),
    )
    assert chapter.extant_lines == {
        manuscript.siglum: {
            manuscript_line.labels: [
                ExtantLine(manuscript_line.labels, LineNumber(1), True),
                ExtantLine(manuscript_line3.labels, LineNumber(3), False),
            ],
            manuscript_line2.labels:
            [ExtantLine(manuscript_line2.labels, LineNumber(2), False)],
        }
    }