fix: add file size validation to TTS provider test and MiniMax empty audio detection (#5999)

- Add audio data validation in MiniMax TTS get_audio() method to detect empty responses
- Validate generated audio file size in TTSProvider.test() to ensure valid output
- Provide detailed error messages guiding users to check group_id configuration
- Auto-cleanup test audio files after validation
- Fixes issue where 0KB audio files would pass TTS detection when group_id is not configured

Author: ChuwuYo

astrbot/core/provider/provider.py

@@ -281,7 +281,24 @@ async def get_audio_stream(
             accumulated_text += text_part
 
     async def test(self) -> None:
-        await self.get_audio("hi")
+        audio_path = await self.get_audio("hi")
+
+        # 检查生成的音频文件是否有效
+        if not os.path.exists(audio_path):
+            raise Exception("TTS test failed: audio file was not created")
+
+        file_size = os.path.getsize(audio_path)
+        if file_size == 0:
+            raise Exception(
+                "TTS test failed: generated audio file is empty (0 bytes). "
+                "Please check your TTS provider configuration, especially required parameters like group_id for MiniMax."
+            )
+
+        # 清理测试文件
+        try:
+            os.remove(audio_path)
+        except Exception:
+            pass
 
 
 class EmbeddingProvider(AbstractProvider):

astrbot/core/provider/sources/minimax_tts_api_source.py

@@ -154,11 +154,19 @@ async def get_audio(self, text: str) -> str:
             audio_stream = self._call_tts_stream(text)
             audio = await self._audio_play(audio_stream)
 
+            # 检查音频数据是否为空
+            if not audio or len(audio) == 0:
+                raise Exception(
+                    "MiniMax TTS API returned empty audio data. "
+                    "Please verify your configuration, especially the 'group_id' parameter. "
+                    "You can find your group_id in Account Management -> Basic Information on the MiniMax platform."
+                )
+
             # 结果保存至文件
             with open(path, "wb") as file:
                 file.write(audio)
 
             return path
 
         except aiohttp.ClientError as e:
-            raise e
+            raise Exception(f"MiniMax TTS API request failed: {e!s}")