diff --git a/src/voice_assistant/text/test_snowboydecoder.py b/src/voice_assistant/text/test_snowboydecoder.py
new file mode 100644
index 0000000..445a3f9
--- /dev/null
+++ b/src/voice_assistant/text/test_snowboydecoder.py
@@ -0,0 +1,56 @@
+import unittest  
+from unittest.mock import Mock, patch  
+from snowboydecoder import HotwordDetector  
+  
+# 假设 RESOURCE_FILE 是在 snowboydecoder.py 中定义的  
+RESOURCE_FILE = 'path/to/resource.res'  
+  
+class TestHotwordDetector(unittest.TestCase):  
+  
+    @patch('snowboydecoder.snowboydetect.SnowboyDetect')  
+    @patch('snowboydecoder.pyaudio.PyAudio')  
+    def test_init(self, mock_pyaudio, mock_snowboydetect):  
+        # Mock SnowboyDetect  
+        mock_detector = mock_snowboydetect.return_value  
+        mock_detector.NumChannels.return_value = 1  
+        mock_detector.SampleRate.return_value = 16000  
+        mock_detector.BitsPerSample.return_value = 16  
+        mock_detector.NumHotwords.return_value = 1  
+  
+        # Mock PyAudio  
+        mock_audio = mock_pyaudio.return_value  
+  
+        # Mock audio stream  
+        mock_stream = Mock()  
+        mock_audio.open.return_value = mock_stream  
+  
+        # Initialize HotwordDetector  
+        decoder_model = 'model_id'  
+        sensitivity = 0.5  
+        audio_gain = 1.0  
+        detector = HotwordDetector(decoder_model, RESOURCE_FILE, sensitivity, audio_gain)  
+  
+        # Verify interactions  
+        mock_snowboydetect.assert_called_once_with(  
+            resource_filename=RESOURCE_FILE.encode(),  
+            model_str='model_id'.encode()  
+        )  
+        mock_detector.SetAudioGain.assert_called_once_with(audio_gain)  
+        mock_detector.SetSensitivity.assert_called_once_with('0.5'.encode())  
+  
+        # Verify PyAudio and Stream configurations  
+        mock_pyaudio.assert_called_once()  
+        mock_audio.open.assert_called_once_with(  
+            input=True, output=False,  
+            format=mock_audio.get_format_from_width(2).return_value,  
+            channels=1,  
+            rate=16000,  
+            frames_per_buffer=2048,  
+            stream_callback=detector.audio_callback  
+        )  
+  
+        # Verify RingBuffer size  
+        self.assertEqual(len(detector.ring_buffer), 0)  
+  
+if __name__ == '__main__':  
+    unittest.main()
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