feat: language parameter for potential accent tuning

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/test_converter.py b/tests/test_converter.py
index 91ce699..351849a 100644
--- a/tests/test_converter.py
+++ b/tests/test_converter.py
@@ -34,6 +34,27 @@ class ConfigurationValidationTests(unittest.TestCase):
         with self.assertRaises(ValueError):
             AudiobookConverter(output_format="wma")
 
+    def test_unknown_language_rejected(self):
+        with self.assertRaises(ValueError):
+            AudiobookConverter(language="klingon")
+
+    def test_language_defaults_to_config(self):
+        with patch("converter.converter.QwenTTSClient") as mock_tts:
+            AudiobookConverter()
+        self.assertEqual(mock_tts.call_args.kwargs["language"], "English")
+
+    def test_output_format_defaults_to_config(self):
+        with patch("converter.converter.QwenTTSClient"):
+            converter = AudiobookConverter()
+        self.assertEqual(converter.output_format, config.AUDIO_FORMAT)
+        self.assertEqual(config.AUDIO_FORMAT, "m4b")
+
+    def test_language_normalized_before_tts_client(self):
+        with patch("converter.converter.QwenTTSClient") as mock_tts:
+            converter = AudiobookConverter(language="ja")
+        self.assertEqual(converter.language, "Japanese")
+        self.assertEqual(mock_tts.call_args.kwargs["language"], "Japanese")
+
 
 class FindExistingOutputsTests(unittest.TestCase):
     def setUp(self):
@@ -127,6 +148,7 @@ class RunOverwritePromptTests(unittest.TestCase):
         self.converter.speed = 1.0
         self.converter.single_file = False
         self.converter.output_format = "mp3"
+        self.converter.language = "English"
         self.converted = []
         self.converter.convert_book = (
             lambda file_path, output_name=None: