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157 lines
4.4 KiB
Python
157 lines
4.4 KiB
Python
import codecs
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import locale
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import os
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import pytest
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from pandas._config.localization import (
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can_set_locale,
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get_locales,
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set_locale,
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)
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from pandas.compat import ISMUSL
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import pandas as pd
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_all_locales = get_locales()
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_current_locale = locale.setlocale(locale.LC_ALL) # getlocale() is wrong, see GH#46595
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# Don't run any of these tests if we have no locales.
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pytestmark = pytest.mark.skipif(not _all_locales, reason="Need locales")
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_skip_if_only_one_locale = pytest.mark.skipif(
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len(_all_locales) <= 1, reason="Need multiple locales for meaningful test"
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)
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def _get_current_locale(lc_var: int = locale.LC_ALL) -> str:
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# getlocale is not always compliant with setlocale, use setlocale. GH#46595
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return locale.setlocale(lc_var)
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@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
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def test_can_set_current_locale(lc_var):
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# Can set the current locale
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before_locale = _get_current_locale(lc_var)
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assert can_set_locale(before_locale, lc_var=lc_var)
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after_locale = _get_current_locale(lc_var)
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assert before_locale == after_locale
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@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
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def test_can_set_locale_valid_set(lc_var):
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# Can set the default locale.
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before_locale = _get_current_locale(lc_var)
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assert can_set_locale("", lc_var=lc_var)
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after_locale = _get_current_locale(lc_var)
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assert before_locale == after_locale
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@pytest.mark.parametrize(
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"lc_var",
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(
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locale.LC_ALL,
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locale.LC_CTYPE,
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pytest.param(
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locale.LC_TIME,
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marks=pytest.mark.skipif(
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ISMUSL, reason="MUSL allows setting invalid LC_TIME."
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),
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),
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),
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)
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def test_can_set_locale_invalid_set(lc_var):
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# Cannot set an invalid locale.
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before_locale = _get_current_locale(lc_var)
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assert not can_set_locale("non-existent_locale", lc_var=lc_var)
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after_locale = _get_current_locale(lc_var)
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assert before_locale == after_locale
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@pytest.mark.parametrize(
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"lang,enc",
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[
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("it_CH", "UTF-8"),
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("en_US", "ascii"),
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("zh_CN", "GB2312"),
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("it_IT", "ISO-8859-1"),
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],
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)
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@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
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def test_can_set_locale_no_leak(lang, enc, lc_var):
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# Test that can_set_locale does not leak even when returning False. See GH#46595
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before_locale = _get_current_locale(lc_var)
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can_set_locale((lang, enc), locale.LC_ALL)
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after_locale = _get_current_locale(lc_var)
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assert before_locale == after_locale
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def test_can_set_locale_invalid_get(monkeypatch):
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# see GH#22129
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# In some cases, an invalid locale can be set,
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# but a subsequent getlocale() raises a ValueError.
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def mock_get_locale():
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raise ValueError()
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with monkeypatch.context() as m:
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m.setattr(locale, "getlocale", mock_get_locale)
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assert not can_set_locale("")
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def test_get_locales_at_least_one():
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# see GH#9744
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assert len(_all_locales) > 0
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@_skip_if_only_one_locale
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def test_get_locales_prefix():
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first_locale = _all_locales[0]
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assert len(get_locales(prefix=first_locale[:2])) > 0
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@_skip_if_only_one_locale
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@pytest.mark.parametrize(
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"lang,enc",
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[
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("it_CH", "UTF-8"),
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("en_US", "ascii"),
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("zh_CN", "GB2312"),
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("it_IT", "ISO-8859-1"),
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],
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)
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def test_set_locale(lang, enc):
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before_locale = _get_current_locale()
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enc = codecs.lookup(enc).name
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new_locale = lang, enc
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if not can_set_locale(new_locale):
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msg = "unsupported locale setting"
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with pytest.raises(locale.Error, match=msg):
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with set_locale(new_locale):
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pass
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else:
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with set_locale(new_locale) as normalized_locale:
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new_lang, new_enc = normalized_locale.split(".")
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new_enc = codecs.lookup(enc).name
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normalized_locale = new_lang, new_enc
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assert normalized_locale == new_locale
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# Once we exit the "with" statement, locale should be back to what it was.
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after_locale = _get_current_locale()
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assert before_locale == after_locale
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def test_encoding_detected():
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system_locale = os.environ.get("LC_ALL")
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system_encoding = system_locale.split(".")[-1] if system_locale else "utf-8"
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assert (
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codecs.lookup(pd.options.display.encoding).name
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== codecs.lookup(system_encoding).name
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)
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