def test_detect_system_language_translation_not_found(self, monkeypatch):
"""Tests detect_system_language() returns default if no translation found for system language."""
monkeypatch.setattr(QLocale, "name", lambda x: "fr_FR")
assert detect_system_language() == "tr_en_US.qm"
def test_detect_system_language_translation_found(self, monkeypatch):
"""Tests detect_system_language() returns the appropriate translation filename for the system language."""
locales = ("ar_EG", "de_DE", "en_US", "fr_CA", "ja_JP", "nl_NL", "sv_SE", "zh_CN", "zh_HK")
for locale in locales:
monkeypatch.setattr(QLocale, "name", lambda x: locale)
assert detect_system_language() == "tr_{}.qm".format(locale)
