hermes-agent/tests/tools/test_tts_instructions.py
Teknium 4aac89b429 fix(tts): unify TTS text preprocessing behind one shared cleaner
Consolidates all TTS text-preparation paths onto
tools/tts_text_normalize.prepare_spoken_text:

- strip_nonspoken_blocks: removes <think> reasoning blocks (#34213,
  incl. unterminated streaming blocks) and the end-of-turn
  file-mutation verifier footer emitted by run_agent.py (#40772).
- flatten_newlines_for_payload: collapses newlines into sentence
  breaks so newline-sensitive OpenAI-compatible providers (Kokoro)
  speak the whole script instead of truncating at the first newline
  (#9004).
- tools/tts_tool._strip_markdown_for_tts (voice-mode streaming + web
  dashboard path) now delegates to the shared cleaner, with the legacy
  regex pipeline kept as a best-effort fallback.
- hermes_cli/voice.py speak_text and cli.py _voice_speak_response now
  use the shared cleaner instead of their own duplicated regex
  pipelines.
- gateway auto-TTS fallback also strips think blocks.

Tests: tests/tools/test_tts_prepare_spoken.py covers think blocks,
verifier footer, emoji, newline flattening, and the shared-cleaner
wiring on the tool/streaming/gateway paths. Updated the header
expectation in test_voice_cli_integration.py for the heading-fold
behavior of the shared cleaner.

Closes #34213, #9004, #40772
2026-07-28 11:55:01 -07:00

124 lines
5.2 KiB
Python

"""Tests for the OpenAI TTS `instructions` field passthrough.
Covers #14196: forwarding the OpenAI-spec `instructions` parameter through the
`text_to_speech` tool so the agent can control tone/emotion/pacing on
gpt-4o-mini-tts and OpenAI-compatible voice-design servers.
"""
import json
from unittest.mock import MagicMock, patch
import pytest
@pytest.fixture(autouse=True)
def clean_env(monkeypatch):
for key in ("OPENAI_API_KEY", "HERMES_SESSION_PLATFORM"):
monkeypatch.delenv(key, raising=False)
# ---------------------------------------------------------------------------
# Backend-level passthrough (_generate_openai_tts)
# ---------------------------------------------------------------------------
class TestOpenaiBackendInstructions:
def _run(self, tmp_path, monkeypatch, *, tts_config=None, instructions=None):
monkeypatch.setenv("OPENAI_API_KEY", "test-key")
mock_client = MagicMock()
mock_client.audio.speech.create.return_value = MagicMock()
mock_cls = MagicMock(return_value=mock_client)
with patch("tools.tts_tool._import_openai_client", return_value=mock_cls), \
patch("tools.tts_tool._resolve_openai_audio_client_config",
return_value=("test-key", None, False)):
from tools.tts_tool import _generate_openai_tts
kwargs = {}
if instructions is not None:
kwargs["instructions"] = instructions
_generate_openai_tts(
"Hello", str(tmp_path / "out.mp3"), tts_config or {}, **kwargs
)
return mock_client.audio.speech.create
def test_instructions_forwarded_when_provided(self, tmp_path, monkeypatch):
"""Tool arg `instructions` is passed to audio.speech.create as-is."""
create = self._run(tmp_path, monkeypatch, instructions="Speak cheerfully.")
assert create.call_args[1]["instructions"] == "Speak cheerfully."
def test_instructions_absent_by_default(self, tmp_path, monkeypatch):
"""No instructions arg -> key not present in create kwargs.
Preserves behavior on `tts-1`/`tts-1-hd` and strict servers that
reject unknown kwargs.
"""
create = self._run(tmp_path, monkeypatch)
assert "instructions" not in create.call_args[1]
def test_empty_string_instructions_omitted(self, tmp_path, monkeypatch):
"""Empty string is treated as absent (not forwarded)."""
create = self._run(tmp_path, monkeypatch, instructions="")
assert "instructions" not in create.call_args[1]
# ---------------------------------------------------------------------------
# Tool-level plumbing (text_to_speech_tool -> _generate_openai_tts)
# ---------------------------------------------------------------------------
class TestToolLevelInstructions:
def _invoke_tool(self, tmp_path, monkeypatch, *, instructions=None):
monkeypatch.setenv("OPENAI_API_KEY", "test-key")
mock_client = MagicMock()
def fake_stream(path):
# Mimic OpenAI SDK's stream_to_file by writing a tiny payload.
with open(path, "wb") as f:
f.write(b"ID3\x03\x00\x00\x00\x00\x00\x00")
response = MagicMock()
response.stream_to_file.side_effect = fake_stream
mock_client.audio.speech.create.return_value = response
mock_cls = MagicMock(return_value=mock_client)
with patch("tools.tts_tool._import_openai_client", return_value=mock_cls), \
patch("tools.tts_tool._resolve_openai_audio_client_config",
return_value=("test-key", None, False)), \
patch("tools.tts_tool._load_tts_config",
return_value={"provider": "openai"}):
from tools.tts_tool import text_to_speech_tool
kwargs = {"output_path": str(tmp_path / "out.mp3")}
if instructions is not None:
kwargs["instructions"] = instructions
result = text_to_speech_tool("Hello world", **kwargs)
return mock_client.audio.speech.create, json.loads(result)
def test_tool_threads_instructions_to_openai_create(
self, tmp_path, monkeypatch
):
create, result = self._invoke_tool(
tmp_path, monkeypatch, instructions="Whisper conspiratorially."
)
assert result.get("success") is True
assert create.call_args[1]["instructions"] == "Whisper conspiratorially."
def test_tool_omits_instructions_when_not_supplied(
self, tmp_path, monkeypatch
):
create, result = self._invoke_tool(tmp_path, monkeypatch)
assert result.get("success") is True
assert "instructions" not in create.call_args[1]
# ---------------------------------------------------------------------------
# Schema
# ---------------------------------------------------------------------------
class TestSchema:
def test_schema_exposes_instructions_parameter(self):
from tools.tts_tool import TTS_SCHEMA
props = TTS_SCHEMA["parameters"]["properties"]
assert "instructions" in props
assert props["instructions"]["type"] == "string"
# Must stay optional — current behavior must be preserved.
assert "instructions" not in TTS_SCHEMA["parameters"].get("required", [])