fix: crash when menu of clone voices is empty

1 files changed, 50 insertions, 0 deletions

diff --git a/app/tests/test_hub.py b/app/tests/test_hub.py
index 6657540..73ef075 100644
--- a/app/tests/test_hub.py
+++ b/app/tests/test_hub.py
@@ -856,6 +856,56 @@ class ConvertFlowTests(unittest.TestCase):
         instr = self._field("instructions")
         self.assertFalse(instr["visible"](fields))
 
+    def test_audiocpp_remote_without_voices_refuses_generate_with_hint(self):
+        # A clone-capable entry (e.g. Qwen Base) whose server lists no
+        # voices at all: the Voice picker stays visible but is empty —
+        # opening it flashes where to configure voices instead of
+        # crashing — and Generate! refuses with the same hint.
+        self._patch_remote(
+            [{"id": "Qwen3-TTS-12Hz-1.7B-Base-GGUF",
+              "family": "qwen3_tts", "task": "tts"}],
+            voices=[])
+        with patch.object(hub.config, "AUDIOCPP_INSTRUCTIONS", ""):
+            self._answer_form(
+                backend="audiocpp-remote",
+                model_id="Qwen3-TTS-12Hz-1.7B-Base-GGUF",
+                audiocpp_voice="", instructions="")
+            self._convert(None, [self._remote("audiocpp", "audio.cpp")])
+        fields = self.tui.forms_seen[0][1]
+        voice_field = self._field("audiocpp_voice")
+        self.assertTrue(voice_field["visible"](fields))
+        self.assertEqual(voice_field["choices"](fields), [])
+        error = voice_field["validate"]("")
+        self.assertIsNotNone(error)
+        self.assertIn(".wav", error)
+        self.assertIn("server", error)
+
+    def test_audiocpp_local_without_voice_dir_points_at_configure(self):
+        # The managed entry's server.json has no voice_dir: clone-capable
+        # models get an empty Voice picker whose hint sends the user to
+        # Configure backends instead of crashing on menu().
+        with tempfile.TemporaryDirectory() as td:
+            root = Path(td)
+            (root / "server.json").write_text(json.dumps({
+                "models": [{"id": "qwen", "family": "qwen3_tts",
+                            "task": "tts"}],
+            }), encoding="utf-8")
+            with patch.object(hub.audiocpp_backend, "find_local_checkout",
+                              return_value=root), \
+                    patch.object(hub.config, "AUDIOCPP_INSTRUCTIONS", ""):
+                self._answer_form(backend="audiocpp", model_id="qwen",
+                                  audiocpp_voice="", instructions="")
+                self._convert(None,
+                              [self._ready("audiocpp", "audio.cpp")])
+        fields = self.tui.forms_seen[0][1]
+        voice_field = self._field("audiocpp_voice")
+        self.assertTrue(voice_field["visible"](fields))
+        self.assertEqual(voice_field["choices"](fields), [])
+        error = voice_field["validate"]("")
+        self.assertIsNotNone(error)
+        self.assertIn(".wav", error)
+        self.assertIn("Configure backends", error)
+
     def test_audiocpp_remote_missing_family_is_clone_capable(self):
         # A missing family is unknown — not guessed as qwen3_tts — so the
         # entry is clone-only: it needs a --voice rather than offering a