prep 0.2.6

tests/unit/test_i18n.py

@@ -0,0 +1,89 @@
+from __future__ import annotations
+
+from pathlib import Path
+import json
+import sys
+import tempfile
+import unittest
+
+
+SRC_ROOT = Path(__file__).resolve().parents[2] / "src"
+
+if str(SRC_ROOT) not in sys.path:
+    sys.path.insert(0, str(SRC_ROOT))
+
+
+from ffx.i18n import (  # noqa: E402
+    detect_system_language,
+    read_configured_language,
+    resolve_application_language,
+    set_current_language,
+    t,
+)
+from ffx.iso_language import IsoLanguage  # noqa: E402
+
+
+class I18nTests(unittest.TestCase):
+    def tearDown(self):
+        set_current_language("de")
+
+    def test_cli_language_takes_precedence_over_config_and_system(self):
+        self.assertEqual(
+            "es",
+            resolve_application_language(
+                cli_language="es",
+                config_language="fr",
+                system_language="ja",
+            ),
+        )
+
+    def test_config_language_takes_precedence_over_system(self):
+        self.assertEqual(
+            "fr",
+            resolve_application_language(
+                config_language="fr",
+                system_language="ja",
+            ),
+        )
+
+    def test_system_language_is_used_when_no_cli_or_config_is_present(self):
+        self.assertEqual("ja", resolve_application_language(system_language="ja"))
+
+    def test_german_is_default_when_no_supported_language_is_available(self):
+        self.assertEqual(
+            "de",
+            resolve_application_language(
+                env={
+                    "LANG": "C.UTF-8",
+                    "LC_ALL": "C.UTF-8",
+                    "LC_MESSAGES": "C.UTF-8",
+                }
+            ),
+        )
+
+    def test_system_language_detection_normalizes_norwegian_bokmal(self):
+        self.assertEqual(
+            "nb",
+            detect_system_language({"LANG": "nb_NO.UTF-8"}),
+        )
+
+    def test_read_configured_language_normalizes_language_code(self):
+        with tempfile.TemporaryDirectory() as tempdir:
+            config_path = Path(tempdir) / "ffx.json"
+            config_path.write_text(
+                json.dumps({"language": "pt_BR.UTF-8"}),
+                encoding="utf-8",
+            )
+            self.assertEqual("pt", read_configured_language(config_path))
+
+    def test_phrase_translation_uses_catalog_for_selected_language(self):
+        set_current_language("fr")
+        self.assertEqual("Ajouter", t("Add"))
+
+    def test_iso_language_labels_use_catalog_for_selected_language(self):
+        set_current_language("de")
+        self.assertEqual("Deutsch", IsoLanguage.GERMAN.label())
+
+
+if __name__ == "__main__":
+    unittest.main()