dsh UI improvement

apps/customer/tests/test_locales.py

@@ -0,0 +1,76 @@
+"""Static checks: translation keys and preference defaults stay in sync."""
+
+from __future__ import annotations
+
+import json
+import re
+from pathlib import Path
+
+APP_ROOT = Path(__file__).resolve().parents[1]
+SRC_DIR = APP_ROOT / "src"
+LOCALES_DIR = APP_ROOT / "config" / "locales"
+DEFAULTS_JSON = APP_ROOT / "config" / "preferences.default.json"
+
+REPO_ROOT = APP_ROOT.parents[1]
+STORE_PY = REPO_ROOT / "shared" / "src" / "orisys_app_shared" / "prefs" / "store.py"
+
+_T_CALL = re.compile(r"""\bt\(\s*["']([A-Za-z0-9_.]+)["']""")
+_DEFAULT_BLOCK = re.compile(r"_DEFAULTS[^=]*=\s*\{(?P<body>.*?)\n\}", re.DOTALL)
+_KEY = re.compile(r"""["']([A-Za-z0-9_]+)["']\s*:""")
+
+
+def _load_locale(name: str) -> dict:
+    return json.loads((LOCALES_DIR / f"{name}.json").read_text(encoding="utf-8"))
+
+
+def _flatten(data: dict, prefix: str = "") -> set[str]:
+    keys: set[str] = set()
+    for key, value in data.items():
+        dotted = f"{prefix}{key}"
+        if isinstance(value, dict):
+            keys |= _flatten(value, f"{dotted}.")
+        else:
+            keys.add(dotted)
+    return keys
+
+
+def _referenced_keys() -> set[str]:
+    found: set[str] = set()
+    for path in sorted(SRC_DIR.rglob("*.py")):
+        found |= set(_T_CALL.findall(path.read_text(encoding="utf-8")))
+    return found
+
+
+def test_locales_parity_and_used_keys():
+    zh = _flatten(_load_locale("zh_CN"))
+    en = _flatten(_load_locale("en_US"))
+
+    assert zh == en, {
+        "zh_only": sorted(zh - en),
+        "en_only": sorted(en - zh),
+    }
+
+    referenced = _referenced_keys()
+    assert referenced, "no t() calls found — the source scan is broken"
+    missing = sorted(key for key in referenced if key not in zh)
+    assert not missing, f"t() keys missing from locale files: {missing}"
+
+
+def test_preference_defaults_match_store_defaults():
+    json_keys = set(json.loads(DEFAULTS_JSON.read_text(encoding="utf-8")))
+    source = STORE_PY.read_text(encoding="utf-8")
+    match = _DEFAULT_BLOCK.search(source)
+    assert match, "could not locate _DEFAULTS in prefs/store.py"
+    store_keys = set(_KEY.findall(match.group("body")))
+
+    assert json_keys == store_keys, {
+        "json_only": sorted(json_keys - store_keys),
+        "store_only": sorted(store_keys - json_keys),
+    }
+
+
+def test_locale_files_are_valid_utf8_json():
+    for name in ("zh_CN", "en_US"):
+        data = _load_locale(name)
+        assert isinstance(data, dict)
+        assert data.get("app", {}).get("title")