forked from Zakaria/hermes-agent
Hermes-agent
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Zakaria
@@ -0,0 +1,223 @@
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"""Tests for the Mistral (Voxtral) TTS provider in tools/tts_tool.py."""
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import base64
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from unittest.mock import MagicMock, patch
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import pytest
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@pytest.fixture(autouse=True)
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def clean_env(monkeypatch):
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for key in ("MISTRAL_API_KEY", "HERMES_SESSION_PLATFORM"):
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monkeypatch.delenv(key, raising=False)
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@pytest.fixture
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def mock_mistral_module():
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mock_client = MagicMock()
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mock_client.__enter__ = MagicMock(return_value=mock_client)
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mock_client.__exit__ = MagicMock(return_value=False)
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mock_mistral_cls = MagicMock(return_value=mock_client)
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fake_module = MagicMock()
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fake_module.Mistral = mock_mistral_cls
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with patch.dict("sys.modules", {"mistralai": fake_module, "mistralai.client": fake_module}):
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yield mock_client
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class TestGenerateMistralTts:
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def test_missing_api_key_raises_value_error(self, tmp_path, mock_mistral_module):
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from tools.tts_tool import _generate_mistral_tts
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output_path = str(tmp_path / "test.mp3")
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with pytest.raises(ValueError, match="MISTRAL_API_KEY"):
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_generate_mistral_tts("Hello", output_path, {})
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def test_successful_generation(self, tmp_path, mock_mistral_module, monkeypatch):
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from tools.tts_tool import _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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audio_content = b"fake-audio-bytes"
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(audio_content).decode()
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)
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output_path = str(tmp_path / "test.mp3")
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result = _generate_mistral_tts("Hello world", output_path, {})
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assert result == output_path
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assert (tmp_path / "test.mp3").read_bytes() == audio_content
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mock_mistral_module.audio.speech.complete.assert_called_once()
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mock_mistral_module.__exit__.assert_called_once()
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["input"] == "Hello world"
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assert call_kwargs["response_format"] == "mp3"
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@pytest.mark.parametrize(
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"extension, expected_format",
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[(".ogg", "opus"), (".wav", "wav"), (".flac", "flac"), (".mp3", "mp3")],
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)
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def test_response_format_from_extension(
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self, tmp_path, mock_mistral_module, monkeypatch, extension, expected_format
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):
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from tools.tts_tool import _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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output_path = str(tmp_path / f"test{extension}")
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_generate_mistral_tts("Hi", output_path, {})
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["response_format"] == expected_format
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def test_voice_id_passed_when_configured(
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self, tmp_path, mock_mistral_module, monkeypatch
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):
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from tools.tts_tool import _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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config = {"mistral": {"voice_id": "my-voice-uuid"}}
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_generate_mistral_tts("Hi", str(tmp_path / "test.mp3"), config)
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["voice_id"] == "my-voice-uuid"
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def test_default_voice_id_when_absent(
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self, tmp_path, mock_mistral_module, monkeypatch
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):
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from tools.tts_tool import DEFAULT_MISTRAL_TTS_VOICE_ID, _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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_generate_mistral_tts("Hi", str(tmp_path / "test.mp3"), {})
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["voice_id"] == DEFAULT_MISTRAL_TTS_VOICE_ID
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def test_default_voice_id_when_empty_string(
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self, tmp_path, mock_mistral_module, monkeypatch
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):
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from tools.tts_tool import DEFAULT_MISTRAL_TTS_VOICE_ID, _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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config = {"mistral": {"voice_id": ""}}
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_generate_mistral_tts("Hi", str(tmp_path / "test.mp3"), config)
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["voice_id"] == DEFAULT_MISTRAL_TTS_VOICE_ID
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def test_api_error_sanitized(self, tmp_path, mock_mistral_module, monkeypatch):
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from tools.tts_tool import _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.side_effect = RuntimeError(
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"secret-key-in-error"
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)
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with pytest.raises(RuntimeError, match="RuntimeError") as exc_info:
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_generate_mistral_tts("Hello", str(tmp_path / "test.mp3"), {})
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assert "secret-key-in-error" not in str(exc_info.value)
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def test_default_model_used(self, tmp_path, mock_mistral_module, monkeypatch):
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from tools.tts_tool import DEFAULT_MISTRAL_TTS_MODEL, _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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_generate_mistral_tts("Hi", str(tmp_path / "test.mp3"), {})
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["model"] == DEFAULT_MISTRAL_TTS_MODEL
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def test_model_from_config_overrides_default(
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self, tmp_path, mock_mistral_module, monkeypatch
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):
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from tools.tts_tool import _generate_mistral_tts
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"data").decode()
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)
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config = {"mistral": {"model": "voxtral-large-tts-9999"}}
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_generate_mistral_tts("Hi", str(tmp_path / "test.mp3"), config)
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call_kwargs = mock_mistral_module.audio.speech.complete.call_args[1]
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assert call_kwargs["model"] == "voxtral-large-tts-9999"
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class TestTtsDispatcherMistral:
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def test_dispatcher_routes_to_mistral(
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self, tmp_path, mock_mistral_module, monkeypatch
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):
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import json
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from tools.tts_tool import text_to_speech_tool
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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mock_mistral_module.audio.speech.complete.return_value = MagicMock(
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audio_data=base64.b64encode(b"audio").decode()
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)
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output_path = str(tmp_path / "out.mp3")
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with patch("tools.tts_tool._load_tts_config", return_value={"provider": "mistral"}):
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result = json.loads(text_to_speech_tool("Hello", output_path=output_path))
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assert result["success"] is True
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assert result["provider"] == "mistral"
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mock_mistral_module.audio.speech.complete.assert_called_once()
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def test_dispatcher_returns_error_when_sdk_not_installed(self, tmp_path, monkeypatch):
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import json
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from tools.tts_tool import text_to_speech_tool
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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with patch(
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"tools.tts_tool._import_mistral_client", side_effect=ImportError("no module")
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), patch("tools.tts_tool._load_tts_config", return_value={"provider": "mistral"}):
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result = json.loads(
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text_to_speech_tool("Hello", output_path=str(tmp_path / "out.mp3"))
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)
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assert result["success"] is False
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assert "mistralai" in result["error"]
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class TestCheckTtsRequirementsMistral:
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def test_mistral_sdk_and_key_returns_true(self, mock_mistral_module, monkeypatch):
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from tools.tts_tool import check_tts_requirements
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monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
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with patch("tools.tts_tool._import_edge_tts", side_effect=ImportError), \
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patch("tools.tts_tool._import_elevenlabs", side_effect=ImportError), \
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patch("tools.tts_tool._import_openai_client", side_effect=ImportError), \
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patch("tools.tts_tool._check_neutts_available", return_value=False):
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assert check_tts_requirements() is True
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def test_mistral_key_missing_returns_false(self, mock_mistral_module):
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from tools.tts_tool import check_tts_requirements
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with patch("tools.tts_tool._import_edge_tts", side_effect=ImportError), \
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patch("tools.tts_tool._import_elevenlabs", side_effect=ImportError), \
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patch("tools.tts_tool._import_openai_client", side_effect=ImportError), \
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patch("tools.tts_tool._check_neutts_available", return_value=False), \
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patch("tools.tts_tool._check_kittentts_available", return_value=False), \
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patch("tools.tts_tool._check_piper_available", return_value=False), \
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patch("tools.tts_tool._has_any_command_tts_provider", return_value=False):
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assert check_tts_requirements() is False
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