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test_language.py
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test_language.py
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"""
Basic Language support checks
"""
import os
import pytest
import unicodedata2 as uni
from hyperglot.languages import Languages
from hyperglot.language import Language, Orthography, is_mark
from hyperglot.parse import (character_list_from_string,
parse_font_chars, parse_marks)
@pytest.fixture
def langs():
return Languages()
def test_language_supported(langs):
# A Language object with the 'fin' data
fin = getattr(langs, "fin")
# These "chars" represent a font with supposedly those codepoints in it
fin_chars_missing_a = character_list_from_string(
"bcdefghijklmnopqrstuvwxyzäöå")
fin_chars_base = character_list_from_string("ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÅabcdefghijklmnopqrstuvwxyzäöå") # noqa
fin_chars_aux = character_list_from_string("ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÅÆÕØÜŠŽabcdefghijklmnopqrstuvwxyzäöåæõøüšž") # noqa
fin_chars_no_precomposed = character_list_from_string("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz") # noqa
# This is what supported should look like if it determines 'fin' is
# supported
fin_matched = {"Latin": ["fin"]}
# Note pruneOrthographies=False is used to re-use the same Language object
# for these tests without having removed unsupported orthographies
matches = fin.supported(fin_chars_base, pruneOrthographies=False)
assert matches == fin_matched
no_matches = fin.supported(fin_chars_base, level="aux",
pruneOrthographies=False)
assert no_matches == {}
matches = fin.supported(fin_chars_aux, level="aux",
pruneOrthographies=False)
assert matches == fin_matched
no_matches = fin.supported(fin_chars_base, level="aux",
pruneOrthographies=False)
assert no_matches == {}
no_matches = fin.supported(fin_chars_missing_a, pruneOrthographies=False)
assert no_matches == {}
rus = getattr(langs, "rus")
rus_base = character_list_from_string("А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я Ё а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ё") # noqa
# rus_aux = "А́ Е́ И́ О́ У́ Ы́ Э́ ю́ я́ а́ е́ и́ о́ у́ ы́ э́ ю́ я́"
# rus_marks = "◌̆ ◌̈ ◌́"
assert rus.supported(rus_base, level="base", pruneOrthographies=False)
def test_supported_marks(langs):
deu = getattr(langs, "deu")
eczar = os.path.abspath("tests/Eczar-v1.004/otf/Eczar-Regular.otf")
chars = parse_font_chars(eczar)
# Let's fake a font with not combining marks
chars = [c for c in chars if not uni.category(c).startswith("M")]
assert deu.supported(chars) != {}
assert deu.supported(chars, marks=True) == {}
def test_supported_decomposed_no_marks(langs):
deu = getattr(langs, "deu")
eczar = os.path.abspath("tests/Eczar-v1.004/otf/Eczar-Regular.otf")
chars = parse_font_chars(eczar)
# Let's fake a font with not combining marks
chars = [c for c in chars if not uni.category(c).startswith("M")]
# The font which has no marks but all encoded characters should still match
print(deu.supported(chars, decomposed=True))
assert deu.supported(chars, decomposed=True) != {}
def test_supported_decomposed(langs):
eczar = os.path.abspath("tests/Eczar-v1.004/otf/Eczar-Regular.otf")
chars = parse_font_chars(eczar)
# Let's fake a font with no encoded german umlauts
chars = [c for c in chars if c not in ["Ä", "Ö", "Ü", "ä", "ö", "ü"]]
deu = getattr(langs, "deu")
assert deu.supported(chars, decomposed=False) == {}
# Let's fake a font which has neither umlauts nor marks
chars = parse_font_chars(eczar)
chars = [c for c in chars if c not in ["Ä", "Ö", "Ü", "ä", "ö", "ü", "̈"]]
deu = getattr(langs, "deu")
# It should not be supporting deu
assert deu.supported(chars, decomposed=True) == {}
# Let's fake a font which is missing some umlauts, but has needed
# base + marks
chars = parse_font_chars(eczar)
chars = [c for c in chars if c not in ["Ö", "Ü", "ö", "ü"]]
deu = getattr(langs, "deu")
# It should be supporting deu
assert deu.supported(chars, decomposed=True) != {}
def test_language_inherit():
langs = Languages(inherit=True)
# aae inherits aln orthography
aae = getattr(langs, "aae")
aln = getattr(langs, "aln")
assert aae.get_orthography()["base"] == aln.get_orthography()["base"]
# without inheritance aae's only orthography should not have any base chars
langs = Languages(inherit=False)
aae = getattr(langs, "aae")
assert "base" not in aae.get_orthography()
def test_language_preferred_name(langs):
bal = getattr(langs, "bal")
# name: Baluchi
# preferred_name: Balochi
assert bal.get_name() == "Balochi"
def test_language_get_autonym(langs):
bal = getattr(langs, "bal")
# name: Baluchi
# - autonym: بلۏچی
# script: Arabic
# preferred_name: Balochi
# For Arabic it should return the correct autonym, without script False
assert bal.get_autonym(script="Arabic") == "بلۏچی"
assert bal.get_autonym() is False
def test_language_all_orthographies(langs):
# smj Lule Sami with one primary and one deprecated orthography should
# always return only the primary
# All the chars from both orthographies
smj_base = character_list_from_string("A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Á Ä Å Ñ Ö Ń a b c d e f g h i j k l m n o p q r s t u v w x y z á ä å ñ ö ń A B D E F G H I J K L M N O P R S T U V Á Ä Å Ŋ a b d e f g h i j k l m n o p r s t u v á ä å ŋ a n o") # noqa
# When checking primary orthographies only one should be included
smj = getattr(langs, "smj")
support = smj.supported(smj_base)
assert ("smj" in support["Latin"]) is True
assert len(smj["orthographies"]) == 1
# Even when checking all orthographies the 'deprecated' orthography should
# not be included
smj = getattr(langs, "smj")
support = smj.supported(smj_base, checkAllOrthographies=True)
assert len(smj["orthographies"]) == 1
# rmn Balkan Romani has Latin (primary) and Cyrillic orthographies
# It should return only Latin by default, but both when listing all
# All the chars from both orthographies
rmn_base = character_list_from_string("A Ä Á B C Ć Č D E Ê É F Ğ H I Î Í J K L M N O Ö Ó P Ṗ Q R Ř S Š T U V W X Y Z a ä á b c ć č d e ê é f ğ h i î í j k l m n o ö ó p ṗ q r ř s š t u v w x y z А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Ы Ь Э Ю Я а б в г д е ё ж з и й к л м н о п р с т у ф х ц ч ш ы ь э ю я") # noqa
# When checking all orthographies, the Cyrillic non-primary should be
# included
rmn = getattr(langs, "rmn")
support = rmn.supported(rmn_base, checkAllOrthographies=True)
assert ("rmn" in support["Latin"]) is True
assert ("Cyrillic" in support.keys()) is True
assert len(rmn["orthographies"]) == 2
# When checking only primary only Latin should be included
rmn = getattr(langs, "rmn")
support = rmn.supported(rmn_base, checkAllOrthographies=False)
assert ("rmn" in support["Latin"]) is True
assert ("Cyrillic" not in support.keys()) is True
assert len(rmn["orthographies"]) == 1
def test_language_multiple_primaries(langs):
# E.g. aat Arvanitika Albanian has exceptionally two `primary`
# orthographies, a font with support for either should include the language
aat_latin = character_list_from_string("A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Á Ä Ç È É Ë Í Ï Ó Ö Ú Ü Ý a b c d e f g h i j k l m n o p q r s t u v w x y z á ä ç è é ë í ï ó ö ú ü ý") # noqa
aat = getattr(langs, "aat")
support = aat.supported(aat_latin)
assert ("Latin" in support.keys()) is True
assert ("Greek" not in support.keys()) is True
assert len(aat["orthographies"]) == 1
def test_language_combined_orthographies():
langs = Languages(inherit=False)
# E.g. Serbian or Japanese have multiple orthographies that should be
# treated as a combination, e.g. require all for support
srp = getattr(langs, "srp")
srp_cyrillic = character_list_from_string('А Б В Г Д Е Ж З И К Л М Н О П Р С Т У Ф Х Ц Ч Ш Ђ Ј Љ Њ Ћ Џ З́ С́ а б в г д е ж з и к л м н о п р с т у ф х ц ч ш ђ ј љ њ ћ џ з́ с́') + ["́"] # noqa
srp_latin = character_list_from_string('A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Ć Č Đ Ś Š Ź Ž a b c d e f g h i j k l m n o p q r s t u v w x y z ć č đ ś š ź ž') # noqa
# Checking support with just the one script will no list the language
support = srp.supported(srp_latin)
assert support == {}
support = srp.supported(srp_cyrillic)
assert support == {}
# Checking with the combined chars this should now return both
# orthographies
srp = getattr(langs, "srp")
combined = srp_cyrillic + srp_latin
support = srp.supported(combined)
assert ("Cyrillic" in support) is True
assert ("Latin" in support) is True
assert ("srp" in support["Cyrillic"]) is True
assert ("srp" in support["Latin"]) is True
# Checking with --include-all-orthographies should return also a single
# orthography
srp = getattr(langs, "srp")
support = srp.supported(srp_latin, checkAllOrthographies=True)
assert ("Latin" in support) is True
def test_language_supported_combining_chars():
hau_base = character_list_from_string(
"A B C D E F G H I J K L M N O R S T U W Y Z Ƙ Ƴ Ɓ Ɗ R̃ a b c d e f g h i j k l m n o r s t u w y z ƙ ƴ ɓ ɗ r̃ ʼ")
hau_marks = parse_marks("◌̃ ◌̀ ◌́ ◌̂")
# Drop the unencoded R/r tilde chars
hau_base = [b for b in hau_base if len(b) == 1]
# A "font charset" with all encoded Hausa chars
hau_chars = hau_base + hau_marks
langs = Languages()
hau = getattr(langs, "hau")
result = hau.supported(hau_chars)
assert "hau" in result["Latin"]
def test_get_orthography(langs):
deu = getattr(langs, "deu")
# By default and with not parameters it should return the primary
# orthography
deu_primary = deu.get_orthography()
assert ("ẞ" in deu_primary["auxiliary"]) is True
# Return a specific orthography
deu_historical = deu.get_orthography(status="historical")
assert deu_historical != deu_primary
assert ("ẞ" not in deu_historical["auxiliary"]) is True
# Raise error when a script does not exist
with pytest.raises(KeyError):
deu.get_orthography(script="Foobar")
# Raise error when a status does not exist
with pytest.raises(KeyError):
deu.get_orthography(status="constructed")
bos = getattr(langs, "bos")
# Return a script specific orthography, even if that is not the primary one
bos_cyrillic = bos.get_orthography("Cyrillic")
assert ("Д" in bos_cyrillic["base"]) is True
# However if for a specific script and status no orthography exists raise
# exceptions
with pytest.raises(KeyError):
bos.get_orthography("Cyrillic", "primary")
def test_orthography_character_list(langs):
deu = getattr(langs, "deu")
ort_default = Orthography(deu["orthographies"][0])
deu_base_default = ort_default._character_list("base")
assert "Ä" in deu_base_default
assert '̈' not in deu_base_default
def test_orthography_base():
# An orthography with unencoded base + marks should return only the base
unencoded_base_chars = {
"base": "R̃ r̃"
}
ort = Orthography(unencoded_base_chars)
assert ort.base_chars == ["R", "r"]
assert ort.base == ["R̃", "r̃"]
# Make sure encoded base + marks are returned, and do not decompose
encoded_base_chars = {
"base": "Ä ä"
}
ort = Orthography(encoded_base_chars)
assert ort.base_chars == ["Ä", "ä"]
assert "A" not in ort.base_chars
assert "a" not in ort.base_chars
def test_orthography_required_marks(langs):
"""
autonym: Deutsch
auxiliary: À É ẞ à é
base: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Ä Ö Ü a b c d e f g h i j k l m n o p q r s t u v w x y z ß ä ö ü
marks: ◌̈ ◌̀ ◌́
note: Includes capital Eszett as an auxiliary character for capitalization of ß.
script: Latin
status: primary
"""
deu = getattr(langs, "deu")
ort = Orthography(deu["orthographies"][0])
# Neither base nor aux has marks which cannot be derived form precomposed
# chars, so there should not be any required marks
assert ort.required_base_marks == []
assert ort.required_auxiliary_marks == []
# Base only requires diesresis comb
assert ort.base_marks == ['̈']
# Aux requires acute and grave comb, and also the base dieresis comb
assert ort.auxiliary_marks == ['̈', '̀', '́']
"""
rus_base = "А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я Ё а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ё"
rus_aux = "А́ Е́ И́ О́ У́ Ы́ Э́ ю́ я́ а́ е́ и́ о́ у́ ы́ э́ ю́ я́"
rus_marks = "◌̆ ◌̈ ◌́"
"""
rus = getattr(langs, "rus")
ort = Orthography(rus["orthographies"][0])
# No marks should be required since all are implicit from precomposed
assert ort.required_base_marks == []
assert ort.required_auxiliary_marks == ['́']
# Base should not need the acute
assert ort.base_marks == ['̆', '̈']
# Aux should need all
assert ort.auxiliary_marks == ['̆', '̈', '́']
"""
bulgarian:
auxiliary: А̀ О̀ У̀ Ъ̀ Ю̀ Я̀ а̀ о̀ у̀ ъ̀ ю̀ я̀
base: А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ь Ю Я Ѐ Ѝ а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ь ю я ѐ ѝ
marks: ◌̀ ◌̆
"""
bul = getattr(langs, "bul")
ort = Orthography(bul["orthographies"][0])
assert ort.base_marks == ["̀", "̆"]
assert ort.required_base_marks == []
assert ort.required_auxiliary_marks == ["̀"]
"""
hausa:
base: A B C D E F G H I J K L M N O R S T U W Y Z Ƙ Ƴ Ɓ Ɗ R̃ a b c d e f g h i j k l m n o r s t u w y z ƙ ƴ ɓ ɗ r̃ ʼ
"""
hau = getattr(langs, "hau")
ort = Orthography(hau["orthographies"][0])
assert ort.required_base_marks == ["̃"]
assert ort.required_auxiliary_marks == ["̃"]
def test_orthography_decomposed():
o = Orthography({
"base": "Ä"
})
assert o["base"] == "Ä"
assert o.base == ["Ä"]
def test_orthography_design_alternates():
o = Orthography({
"design_alternates": "Ą Ę Į Ǫ ą ą́ ę ę́ į į́ ǫ ǫ́"
})
assert o.design_alternates == [
"Ą", "Ę", "Į", "Ǫ", "ą", "ą́", "ę", "ę́", "į", "į́", "ǫ", "ǫ́"]
o = Orthography({
"design_alternates": "◌̆"
})
assert o.design_alternates == ["̆"]
def test_is_mark():
assert is_mark("Я̀") is False
assert is_mark("A") is False
assert is_mark("Ä") is False
assert is_mark("◌̆") is False
assert is_mark("◌") is False
assert is_mark("") is False
assert is_mark("ُ") is True
assert is_mark("̃") is True
def test_yaml_escape_sequences(langs):
# Test some particular cases where the yaml encoding has lead to confusion
# Confirm the single auxiliary mark ' in Standard Malay is returned as such
zsm = getattr(langs, "zsm")
assert zsm.get_orthography()["auxiliary"] == "'"