mirror of
https://github.com/NousResearch/hermes-agent.git
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0ae305ed4e
New "sherpa" wake_word provider: the configured phrase is BPE-tokenized at runtime against a small streaming zipformer KWS model (~13 MB English, one-time download cached under HERMES_HOME), so ANY typed phrase works with zero training — including per-profile phrases like "hey coder". wake.sherpa lazy-dep group + [wake] extra grow sherpa-onnx/sentencepiece; requirements probe routes per provider; sensitivity maps onto sherpa keywords_threshold. E2E-verified on real audio (target phrase fires, foreign phrase stays silent, reset drops buffered state).
564 lines
20 KiB
Python
564 lines
20 KiB
Python
"""Tests for tools.wake_word — the "Hey Hermes" hotword detector.
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No live audio or network: the sounddevice import is faked, engines are stubbed,
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and lazy-dep availability is monkeypatched. Covers config resolution, engine
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dispatch, the requirements probe, the detector fire/cooldown loop, and the
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process-wide singleton lifecycle.
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"""
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import multiprocessing
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import os
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import sys
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import threading
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import time
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import types
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from pathlib import Path
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import pytest
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import tools.wake_word as ww
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# ── Config helpers ───────────────────────────────────────────────────────
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def test_config_defaults_and_clamping():
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assert ww._provider({}) == "openwakeword"
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assert ww._provider({"provider": "Porcupine"}) == "porcupine"
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assert ww._sensitivity({"sensitivity": 5}) == 1.0
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assert ww._sensitivity({"sensitivity": -1}) == 0.0
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assert ww._sensitivity({"sensitivity": "nope"}) == 0.5
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assert ww.wake_phrase({"phrase": "hey hermes"}) == "hey hermes"
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assert ww.wake_phrase({}) == "hey hermes"
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def test_wake_surface_enabled_gate():
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# Disabled → never, regardless of surface.
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assert ww.wake_surface_enabled("cli", {"enabled": False, "surface": "cli"}) is False
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# auto → every surface is eligible; ownership still admits only one.
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for s in ("cli", "tui", "gui"):
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assert ww.wake_surface_enabled(s, {"enabled": True, "surface": "auto"}) is True
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# Pinned surface → only that one.
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cfg = {"enabled": True, "surface": "tui"}
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assert ww.wake_surface_enabled("tui", cfg) is True
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assert ww.wake_surface_enabled("cli", cfg) is False
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assert ww.wake_surface_enabled("gui", cfg) is False
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# Missing/blank surface defaults to auto.
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assert ww.wake_surface_enabled("gui", {"enabled": True}) is True
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def test_looks_like_path():
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assert ww._looks_like_path("models/hey_hermes.onnx")
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assert ww._looks_like_path("custom.ppn")
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assert not ww._looks_like_path("hey_jarvis")
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def test_load_wake_word_config_is_a_dict_with_defaults():
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# Wired into DEFAULT_CONFIG, so a real load returns the section shape.
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cfg = ww.load_wake_word_config()
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assert isinstance(cfg, dict)
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assert cfg.get("enabled") is False
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assert cfg.get("provider") == "openwakeword"
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def test_load_wake_word_config_guards_non_dict(monkeypatch):
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monkeypatch.setattr(
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"hermes_cli.config.load_config", lambda: {"wake_word": "oops"}
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)
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assert ww.load_wake_word_config() == {}
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# ── Engine dispatch ──────────────────────────────────────────────────────
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def test_build_engine_dispatch(monkeypatch):
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monkeypatch.setattr(ww, "_OpenWakeWordEngine", lambda cfg: "oww")
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monkeypatch.setattr(ww, "_PorcupineEngine", lambda cfg: "pv")
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assert ww._build_engine({"provider": "openwakeword"}) == "oww"
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assert ww._build_engine({"provider": "porcupine"}) == "pv"
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with pytest.raises(ValueError):
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ww._build_engine({"provider": "bogus"})
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# ── Requirements probe ───────────────────────────────────────────────────
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def test_requirements_openwakeword_available(monkeypatch):
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monkeypatch.setattr(ww, "_audio_available", lambda: True)
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monkeypatch.setattr("tools.lazy_deps.is_available", lambda f: True)
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r = ww.check_wake_word_requirements(
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{"provider": "openwakeword", "phrase": "hey hermes"}
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)
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assert r["available"] is True
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assert r["provider"] == "openwakeword"
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assert r["phrase"] == "hey hermes"
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def test_requirements_porcupine_needs_access_key(monkeypatch):
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monkeypatch.delenv("PORCUPINE_ACCESS_KEY", raising=False)
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monkeypatch.setattr(ww, "_audio_available", lambda: True)
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monkeypatch.setattr("tools.lazy_deps.is_available", lambda f: True)
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r = ww.check_wake_word_requirements({"provider": "porcupine"})
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assert r["available"] is False
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assert r["access_key_set"] is False
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assert "PORCUPINE_ACCESS_KEY" in r["hint"]
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def test_requirements_unavailable_without_audio(monkeypatch):
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monkeypatch.setattr(ww, "_audio_available", lambda: False)
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monkeypatch.setattr("tools.lazy_deps.is_available", lambda f: True)
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r = ww.check_wake_word_requirements({"provider": "openwakeword"})
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assert r["available"] is False
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assert r["audio_available"] is False
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# ── openWakeWord engine (bundled model + base-model fetch) ───────────────
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def _install_fake_openwakeword(monkeypatch):
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"""Swap in a fake ``openwakeword`` so the engine builds with no network.
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Returns a ``calls`` dict recording every ``download_models`` invocation.
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"""
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calls = {"download": []}
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class _FakeModel:
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def __init__(self, wakeword_models, inference_framework="onnx"):
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self.wakeword_models = list(wakeword_models)
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self.models = {"hey_hermes": object()}
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def predict(self, frame):
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return {"hey_hermes": 0.0}
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def reset(self):
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pass
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oww = types.ModuleType("openwakeword")
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oww.utils = types.SimpleNamespace(
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download_models=lambda names=[]: calls["download"].append(list(names))
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)
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model_mod = types.ModuleType("openwakeword.model")
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model_mod.Model = _FakeModel
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monkeypatch.setitem(sys.modules, "openwakeword", oww)
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monkeypatch.setitem(sys.modules, "openwakeword.model", model_mod)
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monkeypatch.setattr("tools.lazy_deps.ensure", lambda *a, **k: None)
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return calls
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def test_openwakeword_ensures_base_models_for_custom_path(monkeypatch):
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# Regression: a custom ``.onnx`` path used to skip download_models entirely,
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# so a fresh install crashed at load time on a missing melspectrogram.onnx.
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# The base feature models must be ensured for a custom path too.
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calls = _install_fake_openwakeword(monkeypatch)
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eng = ww._OpenWakeWordEngine(
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{"provider": "openwakeword", "openwakeword": {"model": "/models/hey_hermes.onnx"}}
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)
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assert calls["download"] == [["/models/hey_hermes.onnx"]]
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assert eng._labels == ["hey_hermes"]
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def test_openwakeword_fetches_builtin_by_name(monkeypatch):
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calls = _install_fake_openwakeword(monkeypatch)
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ww._OpenWakeWordEngine({"provider": "openwakeword", "openwakeword": {"model": "hey_jarvis"}})
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assert calls["download"] == [["hey_jarvis"]]
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def test_bundled_hey_hermes_model_ships_on_disk():
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# The "hey hermes" wake word works out of the box only if the model is
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# actually bundled. Both framework artifacts must exist and be non-trivial.
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for framework in ("onnx", "tflite"):
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path = ww._bundled_wakeword_path(framework)
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assert os.path.exists(path), path
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assert os.path.getsize(path) > 1024, path
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@pytest.mark.parametrize("model_value", [None, "", "hey_hermes", "hey hermes", "HEY_HERMES"])
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def test_openwakeword_default_resolves_to_bundled_model(monkeypatch, model_value):
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# The default (and any "hey_hermes" alias) must load the bundled file, not be
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# passed through as a bogus built-in name that openWakeWord can't resolve.
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calls = _install_fake_openwakeword(monkeypatch)
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sub = {} if model_value is None else {"model": model_value}
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ww._OpenWakeWordEngine({"provider": "openwakeword", "openwakeword": sub})
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(downloaded,) = calls["download"]
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assert downloaded == [ww._bundled_wakeword_path("onnx")]
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def test_openwakeword_bundled_model_matches_framework(monkeypatch):
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calls = _install_fake_openwakeword(monkeypatch)
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ww._OpenWakeWordEngine(
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{"provider": "openwakeword", "openwakeword": {"inference_framework": "tflite"}}
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)
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(downloaded,) = calls["download"]
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assert downloaded == [ww._bundled_wakeword_path("tflite")]
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assert downloaded[0].endswith(".tflite")
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# ── sherpa-onnx open-vocabulary engine ───────────────────────────────────
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def _install_fake_sherpa(monkeypatch, tmp_path):
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"""Fake sherpa_onnx + a fake model dir so the engine builds offline."""
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calls = {"text2token": [], "spotter": [], "results": []}
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model_dir = tmp_path / "kws-model"
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model_dir.mkdir()
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for name in (
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"tokens.txt",
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"bpe.model",
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"encoder-epoch-12-avg-2-chunk-16-left-64.onnx",
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"decoder-epoch-12-avg-2-chunk-16-left-64.onnx",
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"joiner-epoch-12-avg-2-chunk-16-left-64.onnx",
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):
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(model_dir / name).write_bytes(b"x")
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class _FakeStream:
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def accept_waveform(self, sample_rate, samples):
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pass
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class _FakeSpotter:
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def __init__(self, **kwargs):
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calls["spotter"].append(kwargs)
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def create_stream(self):
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return _FakeStream()
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def is_ready(self, stream):
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return bool(calls["results"])
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def decode_stream(self, stream):
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pass
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def get_result(self, stream):
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return calls["results"].pop(0) if calls["results"] else ""
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def reset_stream(self, stream):
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pass
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def _fake_text2token(phrases, tokens, tokens_type, bpe_model):
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calls["text2token"].append(list(phrases))
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return [p.split() for p in phrases]
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sherpa = types.ModuleType("sherpa_onnx")
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sherpa.KeywordSpotter = _FakeSpotter
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sherpa.text2token = _fake_text2token
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monkeypatch.setitem(sys.modules, "sherpa_onnx", sherpa)
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monkeypatch.setattr("tools.lazy_deps.ensure", lambda *a, **k: None)
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return calls, model_dir
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def test_sherpa_engine_tokenizes_configured_phrase_at_runtime(monkeypatch, tmp_path):
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# The open-vocab core: the phrase from config is tokenized at runtime —
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# no per-phrase model, no training artifact.
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calls, model_dir = _install_fake_sherpa(monkeypatch, tmp_path)
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eng = ww._SherpaKwsEngine({
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"provider": "sherpa",
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"phrase": "purple monkey dishwasher",
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"sherpa": {"model_dir": str(model_dir)},
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})
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assert calls["text2token"] == [["PURPLE MONKEY DISHWASHER"]]
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# keywords file was materialized with an underscored display name
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with open(eng._keywords_file) as f:
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line = f.read().strip()
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assert line.endswith("@PURPLE_MONKEY_DISHWASHER")
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eng.close()
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assert not os.path.exists(eng._keywords_file)
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def test_sherpa_engine_process_fires_and_resets(monkeypatch, tmp_path):
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calls, model_dir = _install_fake_sherpa(monkeypatch, tmp_path)
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eng = ww._SherpaKwsEngine({
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"provider": "sherpa", "phrase": "hey hermes",
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"sherpa": {"model_dir": str(model_dir)},
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})
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frame = [0] * eng.frame_length
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assert eng.process(frame) is False # no result queued
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calls["results"].append("HEY_HERMES")
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assert eng.process(frame) is True # queued result → fire
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old_stream = eng._stream
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eng.reset()
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assert eng._stream is not old_stream # fresh decoder state
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def test_sherpa_provider_routing(monkeypatch, tmp_path):
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calls, model_dir = _install_fake_sherpa(monkeypatch, tmp_path)
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for alias in ("sherpa", "sherpa-onnx", "kws", "open"):
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eng = ww._build_engine({
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"provider": alias, "phrase": "x",
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"sherpa": {"model_dir": str(model_dir)},
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})
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assert isinstance(eng, ww._SherpaKwsEngine)
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def test_sherpa_requirements_probe_uses_sherpa_feature(monkeypatch):
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seen = {}
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monkeypatch.setattr(ww, "_audio_available", lambda: True)
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monkeypatch.setattr(
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"tools.lazy_deps.is_available", lambda f: seen.setdefault("feature", f) or True
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)
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r = ww.check_wake_word_requirements({"provider": "sherpa", "phrase": "anything at all"})
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assert seen["feature"] == "wake.sherpa"
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assert r["provider"] == "sherpa"
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assert r["phrase"] == "anything at all"
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# ── Detector loop ────────────────────────────────────────────────────────
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class _FakeStream:
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"""Always-readable input stream that yields trivial frames."""
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def __init__(self, **_kw):
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self.closed = False
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def start(self):
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pass
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def read(self, n):
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time.sleep(0.01)
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return [0] * n, False
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def stop(self):
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pass
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def close(self):
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self.closed = True
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class _FakeEngine:
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frame_length = 4
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def __init__(self, fire=True):
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self._fire = fire
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self.closed = False
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self.resets = 0
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def process(self, frame):
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return self._fire
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def reset(self):
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self.resets += 1
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def close(self):
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self.closed = True
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def _fake_audio(monkeypatch):
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fake_sd = types.SimpleNamespace(InputStream=lambda **kw: _FakeStream(**kw))
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monkeypatch.setattr(ww, "_import_audio", lambda: (fake_sd, None))
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def test_detector_fires_once_under_cooldown(monkeypatch):
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_fake_audio(monkeypatch)
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calls = []
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eng = _FakeEngine(fire=True)
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det = ww.WakeWordDetector(eng, lambda: calls.append(1), cooldown=10.0)
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det.start()
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time.sleep(0.25)
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det.stop()
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assert len(calls) == 1 # high cooldown suppresses repeats
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assert eng.closed is True
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assert det.running is False
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def test_detector_refires_after_cooldown(monkeypatch):
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_fake_audio(monkeypatch)
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calls = []
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det = ww.WakeWordDetector(_FakeEngine(fire=True), lambda: calls.append(1), cooldown=0.05)
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det.start()
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time.sleep(0.3)
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det.stop()
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assert len(calls) >= 2
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def test_detector_no_fire_when_engine_quiet(monkeypatch):
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_fake_audio(monkeypatch)
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calls = []
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det = ww.WakeWordDetector(_FakeEngine(fire=False), lambda: calls.append(1))
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det.start()
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time.sleep(0.15)
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det.stop()
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assert calls == []
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def test_detector_resets_engine_on_each_start(monkeypatch):
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# Clearing the engine buffer on (re)start is what stops a resume right after
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# a voice turn from re-firing on stale audio (the runaway wake loop).
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_fake_audio(monkeypatch)
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eng = _FakeEngine(fire=False)
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det = ww.WakeWordDetector(eng, lambda: None)
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det.start()
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time.sleep(0.05)
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det.pause()
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det.resume()
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time.sleep(0.05)
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det.stop()
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assert eng.resets >= 2 # initial start + resume
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def test_detector_pause_resume(monkeypatch):
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_fake_audio(monkeypatch)
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det = ww.WakeWordDetector(_FakeEngine(fire=False), lambda: None)
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det.start()
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time.sleep(0.05)
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assert det.running is True
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det.pause()
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assert det.running is False
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det.resume()
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time.sleep(0.05)
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assert det.running is True
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det.stop()
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assert det.running is False
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# ── Singleton lifecycle ──────────────────────────────────────────────────
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def test_singleton_lifecycle(monkeypatch, tmp_path):
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_fake_audio(monkeypatch)
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monkeypatch.setattr(ww, "_build_engine", lambda cfg: _FakeEngine(fire=False))
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monkeypatch.setattr(ww, "_lock_path", lambda: tmp_path / "wake.lock")
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owner = object()
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assert ww.is_listening() is False
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det = ww.start_listening(lambda: None, owner=owner, config={})
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time.sleep(0.05)
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assert ww.is_listening() is True
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assert ww.owns_listener(owner) is True
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# Re-entrant start returns the same detector and re-arms it.
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det2 = ww.start_listening(lambda: None, owner=owner, config={})
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assert det2 is det
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assert ww.pause_listening(owner=owner) is True
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assert ww.is_listening() is False
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assert ww.resume_listening(owner=owner) is True
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time.sleep(0.05)
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assert ww.is_listening() is True
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assert ww.stop_listening(owner=owner) is True
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assert ww.is_listening() is False
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def test_second_owner_cannot_mutate_listener(monkeypatch, tmp_path):
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_fake_audio(monkeypatch)
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monkeypatch.setattr(ww, "_build_engine", lambda cfg: _FakeEngine(fire=False))
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monkeypatch.setattr(ww, "_lock_path", lambda: tmp_path / "wake.lock")
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owner, intruder = object(), object()
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first_callback = lambda: None
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detector = ww.start_listening(first_callback, owner=owner, config={})
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with pytest.raises(ww.WakeWordInUse):
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ww.start_listening(lambda: None, owner=intruder, config={})
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assert detector.on_wake is first_callback
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assert ww.pause_listening(owner=intruder) is False
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assert ww.resume_listening(owner=intruder) is False
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assert ww.stop_listening(owner=intruder) is False
|
|
assert ww.owns_listener(owner) is True
|
|
assert ww.stop_listening(owner=owner) is True
|
|
|
|
|
|
def test_detection_callback_can_pause_and_close_stream(monkeypatch, tmp_path):
|
|
streams = []
|
|
|
|
def _stream(**kw):
|
|
stream = _FakeStream(**kw)
|
|
streams.append(stream)
|
|
return stream
|
|
|
|
fake_sd = types.SimpleNamespace(InputStream=_stream)
|
|
monkeypatch.setattr(ww, "_import_audio", lambda: (fake_sd, None))
|
|
monkeypatch.setattr(ww, "_build_engine", lambda cfg: _FakeEngine(fire=True))
|
|
monkeypatch.setattr(ww, "_lock_path", lambda: tmp_path / "wake.lock")
|
|
owner = object()
|
|
paused = threading.Event()
|
|
|
|
def _on_wake():
|
|
if ww.pause_listening(owner=owner):
|
|
paused.set()
|
|
|
|
ww.start_listening(_on_wake, owner=owner, config={})
|
|
assert paused.wait(2)
|
|
assert ww.is_listening() is False
|
|
assert streams[0].closed is True
|
|
assert ww.stop_listening(owner=owner) is True
|
|
|
|
|
|
def test_startup_failure_releases_owner_and_machine_lock(monkeypatch, tmp_path):
|
|
class _BrokenSoundDevice:
|
|
@staticmethod
|
|
def InputStream(**_kw):
|
|
raise OSError("no microphone")
|
|
|
|
lock_path = tmp_path / "wake.lock"
|
|
monkeypatch.setattr(ww, "_import_audio", lambda: (_BrokenSoundDevice, None))
|
|
monkeypatch.setattr(ww, "_build_engine", lambda cfg: _FakeEngine(fire=False))
|
|
monkeypatch.setattr(ww, "_lock_path", lambda: lock_path)
|
|
owner = object()
|
|
|
|
with pytest.raises(RuntimeError, match="Failed to open"):
|
|
ww.start_listening(lambda: None, owner=owner, config={})
|
|
|
|
assert ww.owns_listener(owner) is False
|
|
handle = ww._acquire_machine_lock(lock_path)
|
|
ww._release_machine_lock(handle)
|
|
|
|
|
|
def test_stream_failure_releases_owner_and_machine_lock(monkeypatch, tmp_path):
|
|
class _FailingStream(_FakeStream):
|
|
def read(self, _n):
|
|
raise OSError("device disconnected")
|
|
|
|
fake_sd = types.SimpleNamespace(InputStream=lambda **kw: _FailingStream(**kw))
|
|
engine = _FakeEngine(fire=False)
|
|
lock_path = tmp_path / "wake.lock"
|
|
monkeypatch.setattr(ww, "_import_audio", lambda: (fake_sd, None))
|
|
monkeypatch.setattr(ww, "_build_engine", lambda cfg: engine)
|
|
monkeypatch.setattr(ww, "_lock_path", lambda: lock_path)
|
|
owner = object()
|
|
|
|
ww.start_listening(lambda: None, owner=owner, config={})
|
|
deadline = time.time() + 2
|
|
while ww.owns_listener(owner) and time.time() < deadline:
|
|
time.sleep(0.01)
|
|
|
|
assert ww.owns_listener(owner) is False
|
|
assert engine.closed is True
|
|
handle = ww._acquire_machine_lock(lock_path)
|
|
ww._release_machine_lock(handle)
|
|
|
|
|
|
def _hold_machine_lock(path: str, ready, release) -> None:
|
|
from tools import wake_word
|
|
|
|
handle = wake_word._acquire_machine_lock(Path(path))
|
|
ready.set()
|
|
release.wait(10)
|
|
assert handle is not None
|
|
|
|
|
|
def test_machine_lock_is_released_when_owner_process_exits(tmp_path):
|
|
lock_path = tmp_path / "wake.lock"
|
|
ctx = multiprocessing.get_context("spawn")
|
|
ready = ctx.Event()
|
|
release = ctx.Event()
|
|
process = ctx.Process(
|
|
target=_hold_machine_lock,
|
|
args=(str(lock_path), ready, release),
|
|
)
|
|
process.start()
|
|
try:
|
|
assert ready.wait(10)
|
|
with pytest.raises(ww.WakeWordInUse):
|
|
ww._acquire_machine_lock(lock_path)
|
|
release.set()
|
|
process.join(10)
|
|
assert process.exitcode == 0
|
|
handle = ww._acquire_machine_lock(lock_path)
|
|
ww._release_machine_lock(handle)
|
|
finally:
|
|
release.set()
|
|
if process.is_alive():
|
|
process.terminate()
|
|
process.join(10)
|