Перевод secret и donate на русский язык (#1419)

tests/test_i18n.py

@@ -0,0 +1,70 @@
+import json
+import unittest
+from pathlib import Path
+
+LOCALES_DIR = Path(__file__).parents[1] / "ui" / "i18n"
+
+# Values that are intentionally identical across locales
+# (brand names, technical terms, format-only strings).
+# Note: settings.language is deliberately "Language" in ru.json —
+# upstream keeps the language selector label in English on purpose.
+ALLOWED_UNTRANSLATED = frozenset({
+    "app.name",
+    "button.test_loading",
+    "connectivity.cfworker_title",
+    "connectivity.error_line",
+    "first_run.manual_mtproto",
+    "language.en",
+    "language.ru",
+    "section.cfproxy",
+    "section.cfworker",
+    "settings.language",
+})
+
+
+def _load(code: str) -> dict:
+    with open(LOCALES_DIR / f"{code}.json", encoding="utf-8") as f:
+        return json.load(f)
+
+
+class I18nParityTest(unittest.TestCase):
+    def test_en_ru_key_sets_match(self):
+        en = _load("en")
+        ru = _load("ru")
+        self.assertEqual(
+            set(en), set(ru),
+            f"Missing in ru: {sorted(set(en) - set(ru))}; "
+            f"missing in en: {sorted(set(ru) - set(en))}",
+        )
+
+    def test_ru_has_no_untouched_english_leftovers(self):
+        en = _load("en")
+        ru = _load("ru")
+        leftovers = sorted(
+            key for key in set(en) & set(ru)
+            if en[key] == ru[key] and key not in ALLOWED_UNTRANSLATED
+        )
+        self.assertEqual(leftovers, [])
+
+    def test_format_placeholders_match(self):
+        import string
+
+        en = _load("en")
+        ru = _load("ru")
+        for key in set(en) & set(ru):
+            en_fields = {
+                name for _, name, _, _ in string.Formatter().parse(en[key])
+                if name
+            }
+            ru_fields = {
+                name for _, name, _, _ in string.Formatter().parse(ru[key])
+                if name
+            }
+            self.assertEqual(
+                en_fields, ru_fields,
+                f"Placeholder mismatch for key {key!r}",
+            )
+
+
+if __name__ == "__main__":
+    unittest.main()