snake_caseのやつもassertする

Refs: #946 (comment)
Co-authored-by: Hiroshiba <[email protected]>

crates/voicevox_core_python_api/python/test/test_audio_query.py

@@ -78,13 +78,17 @@ def test_getattr() -> None:
                   "prePhonemeLength": 0.1,
                   "postPhonemeLength": 0.1,
                   "outputSamplingRate": 24000,
-                  "outputStereo": false
+                  "outputStereo": false,
+                  "pauseLength": null,
+                  "pauseLengthScale": 1.0,
+                  "kana": ""
                 }
                 """,
             )
         )
     )
 
+    assert getattr(query, "accent_phrases") is query.accent_phrases
     assert getattr(query, "speedScale") is query.speed_scale
     assert getattr(query, "pitchScale") is query.pitch_scale
     assert getattr(query, "intonationScale") is query.intonation_scale
@@ -95,6 +99,7 @@ def test_getattr() -> None:
     assert getattr(query, "outputStereo") is query.output_stereo
     assert getattr(query, "pauseLength") is query.pause_length
     assert getattr(query, "pauseLengthScale") is query.pause_length_scale
+    assert getattr(query, "kana") is query.kana
 
     with pytest.raises(
         AttributeError, match="^'AudioQuery' has no attribute 'nonexisting_name'$"