Initial commit with translated description

tests/test_vehicle_select.py

@@ -0,0 +1,71 @@
+import unittest
+import sys
+from pathlib import Path
+
+# Allow importing scripts/tesla.py as a module
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "scripts"))
+
+import tesla  # noqa: E402
+
+
+class VehicleSelectTests(unittest.TestCase):
+    def setUp(self):
+        self.vehicles = [
+            {"display_name": "My Model 3"},
+            {"display_name": "Road Trip"},
+            {"display_name": "Model Y"},
+        ]
+
+    def test_select_vehicle_default_first(self):
+        v = tesla._select_vehicle(self.vehicles, None)
+        self.assertEqual(v["display_name"], "My Model 3")
+
+    def test_select_vehicle_exact_case_insensitive(self):
+        v = tesla._select_vehicle(self.vehicles, "model y")
+        self.assertEqual(v["display_name"], "Model Y")
+
+    def test_select_vehicle_partial_substring(self):
+        v = tesla._select_vehicle(self.vehicles, "road")
+        self.assertEqual(v["display_name"], "Road Trip")
+
+    def test_select_vehicle_index_1_based(self):
+        v = tesla._select_vehicle(self.vehicles, "2")
+        self.assertEqual(v["display_name"], "Road Trip")
+
+    def test_select_vehicle_ambiguous_returns_none(self):
+        vehicles = [
+            {"display_name": "Alpha"},
+            {"display_name": "Alphanumeric"},
+        ]
+        self.assertIsNone(tesla._select_vehicle(vehicles, "alp"))
+
+    def test_get_vehicle_ambiguous_error_is_helpful(self):
+        class FakeTesla:
+            def vehicle_list(self_inner):
+                return [
+                    {"display_name": "Alpha"},
+                    {"display_name": "Alphanumeric"},
+                    {"display_name": "Beta"},
+                ]
+
+        # Force ambiguity and assert we mention that it's ambiguous + show index hint.
+        stderr = sys.stderr
+        try:
+            from io import StringIO
+
+            buf = StringIO()
+            sys.stderr = buf
+            with self.assertRaises(SystemExit) as ctx:
+                tesla.get_vehicle(FakeTesla(), name="alp")
+            self.assertEqual(ctx.exception.code, 1)
+            out = buf.getvalue()
+            self.assertIn("ambiguous", out.lower())
+            self.assertIn("--car <N>", out)
+            self.assertIn("Matches:", out)
+        finally:
+            sys.stderr = stderr
+
+
+if __name__ == "__main__":
+    unittest.main()