hermes-agent/tests/tools/test_tool_backend_helpers.py
liuhao1024 44df52005a
fix(tools): guard Path.home() against PermissionError in has_direct_modal_credentials (#33528)
When HOME=/root (Docker containers) and the process runs as unprivileged
user (hermes, uid 10000), Path.home() / '.modal.toml' raises PermissionError
because /root/ is inaccessible. This crashes the dashboard /api/skills endpoint.

Catch PermissionError/OSError and treat as 'no config file'. Env vars still
take priority (tested).

Fixes #33525
2026-05-29 13:35:39 +10:00

403 lines
16 KiB
Python

"""Unit tests for tools/tool_backend_helpers.py.
Tests cover:
- managed_nous_tools_enabled() subscription-based gate
- normalize_browser_cloud_provider() coercion
- coerce_modal_mode() / normalize_modal_mode() validation
- has_direct_modal_credentials() detection
- resolve_modal_backend_state() backend selection matrix
- resolve_openai_audio_api_key() priority chain
"""
from __future__ import annotations
from pathlib import Path
from unittest.mock import patch
import pytest
from hermes_cli.nous_account import NousPaidServiceAccessInfo, NousPortalAccountInfo
from tools.tool_backend_helpers import (
coerce_modal_mode,
has_direct_modal_credentials,
managed_nous_tools_enabled,
nous_tool_gateway_unavailable_message,
normalize_browser_cloud_provider,
normalize_modal_mode,
prefers_gateway,
resolve_modal_backend_state,
resolve_openai_audio_api_key,
)
def _raise_import():
raise ImportError("simulated missing module")
# ---------------------------------------------------------------------------
# managed_nous_tools_enabled
# ---------------------------------------------------------------------------
class TestManagedNousToolsEnabled:
"""Subscription-based gate: True for paid Nous subscribers."""
def test_disabled_when_not_logged_in(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
lambda: NousPortalAccountInfo(logged_in=False, source="none", fresh=False),
)
assert managed_nous_tools_enabled() is False
def test_disabled_for_free_tier(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
lambda: NousPortalAccountInfo(
logged_in=True,
source="jwt",
fresh=False,
paid_service_access=False,
),
)
assert managed_nous_tools_enabled() is False
def test_enabled_for_paid_subscriber(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
lambda: NousPortalAccountInfo(
logged_in=True,
source="jwt",
fresh=False,
paid_service_access=True,
),
)
assert managed_nous_tools_enabled() is True
def test_force_fresh_is_forwarded(self, monkeypatch):
calls = []
def fake_account_info(*, force_fresh=False):
calls.append(force_fresh)
return NousPortalAccountInfo(
logged_in=True,
source="account_api",
fresh=True,
paid_service_access=True,
)
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
fake_account_info,
)
assert managed_nous_tools_enabled(force_fresh=True) is True
assert calls == [True]
def test_returns_false_on_exception(self, monkeypatch):
"""Should never crash — returns False on any exception."""
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
_raise_import,
)
assert managed_nous_tools_enabled() is False
class TestNousToolGatewayUnavailableMessage:
def test_uses_entitlement_reason_for_logged_in_user(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.nous_account.get_nous_portal_account_info",
lambda force_fresh=False: NousPortalAccountInfo(
logged_in=True,
source="account_api",
fresh=True,
paid_service_access=False,
portal_base_url="https://portal.example.test",
paid_service_access_info=NousPaidServiceAccessInfo(
allowed=False,
reason="no_usable_credits",
has_active_subscription=True,
active_subscription_is_paid=True,
subscription_credits_remaining=0,
purchased_credits_remaining=0,
total_usable_credits=0,
),
),
)
message = nous_tool_gateway_unavailable_message("managed image generation")
assert "credits are exhausted" in message
assert "managed image generation" in message
assert "https://portal.example.test/billing" in message
# ---------------------------------------------------------------------------
# normalize_browser_cloud_provider
# ---------------------------------------------------------------------------
class TestNormalizeBrowserCloudProvider:
"""Coerce arbitrary input to a lowercase browser provider key."""
def test_none_returns_default(self):
assert normalize_browser_cloud_provider(None) == "local"
def test_empty_string_returns_default(self):
assert normalize_browser_cloud_provider("") == "local"
def test_whitespace_only_returns_default(self):
assert normalize_browser_cloud_provider(" ") == "local"
def test_known_provider_normalized(self):
assert normalize_browser_cloud_provider("BrowserBase") == "browserbase"
def test_strips_whitespace(self):
assert normalize_browser_cloud_provider(" Local ") == "local"
def test_integer_coerced(self):
result = normalize_browser_cloud_provider(42)
assert isinstance(result, str)
assert result == "42"
# ---------------------------------------------------------------------------
# coerce_modal_mode / normalize_modal_mode
# ---------------------------------------------------------------------------
class TestCoerceModalMode:
"""Validate and coerce the requested modal execution mode."""
@pytest.mark.parametrize("value", ["auto", "direct", "managed"])
def test_valid_modes_passthrough(self, value):
assert coerce_modal_mode(value) == value
def test_none_returns_auto(self):
assert coerce_modal_mode(None) == "auto"
def test_empty_string_returns_auto(self):
assert coerce_modal_mode("") == "auto"
def test_whitespace_only_returns_auto(self):
assert coerce_modal_mode(" ") == "auto"
def test_uppercase_normalized(self):
assert coerce_modal_mode("DIRECT") == "direct"
def test_mixed_case_normalized(self):
assert coerce_modal_mode("Managed") == "managed"
def test_invalid_mode_falls_back_to_auto(self):
assert coerce_modal_mode("invalid") == "auto"
assert coerce_modal_mode("cloud") == "auto"
def test_strips_whitespace(self):
assert coerce_modal_mode(" managed ") == "managed"
class TestNormalizeModalMode:
"""normalize_modal_mode is an alias for coerce_modal_mode."""
def test_delegates_to_coerce(self):
assert normalize_modal_mode("direct") == coerce_modal_mode("direct")
assert normalize_modal_mode(None) == coerce_modal_mode(None)
assert normalize_modal_mode("bogus") == coerce_modal_mode("bogus")
# ---------------------------------------------------------------------------
# has_direct_modal_credentials
# ---------------------------------------------------------------------------
class TestHasDirectModalCredentials:
"""Detect Modal credentials via env vars or config file."""
def test_no_env_no_file(self, monkeypatch, tmp_path):
monkeypatch.delenv("MODAL_TOKEN_ID", raising=False)
monkeypatch.delenv("MODAL_TOKEN_SECRET", raising=False)
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is False
def test_both_env_vars_set(self, monkeypatch, tmp_path):
monkeypatch.setenv("MODAL_TOKEN_ID", "id-123")
monkeypatch.setenv("MODAL_TOKEN_SECRET", "sec-456")
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is True
def test_only_token_id_not_enough(self, monkeypatch, tmp_path):
monkeypatch.setenv("MODAL_TOKEN_ID", "id-123")
monkeypatch.delenv("MODAL_TOKEN_SECRET", raising=False)
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is False
def test_only_token_secret_not_enough(self, monkeypatch, tmp_path):
monkeypatch.delenv("MODAL_TOKEN_ID", raising=False)
monkeypatch.setenv("MODAL_TOKEN_SECRET", "sec-456")
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is False
def test_config_file_present(self, monkeypatch, tmp_path):
monkeypatch.delenv("MODAL_TOKEN_ID", raising=False)
monkeypatch.delenv("MODAL_TOKEN_SECRET", raising=False)
(tmp_path / ".modal.toml").touch()
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is True
def test_env_vars_take_priority_over_file(self, monkeypatch, tmp_path):
monkeypatch.setenv("MODAL_TOKEN_ID", "id-123")
monkeypatch.setenv("MODAL_TOKEN_SECRET", "sec-456")
(tmp_path / ".modal.toml").touch()
with patch.object(Path, "home", return_value=tmp_path):
assert has_direct_modal_credentials() is True
def test_home_dir_permission_denied(self, monkeypatch):
"""PermissionError on Path.home() should not crash (issue #33525)."""
monkeypatch.delenv("MODAL_TOKEN_ID", raising=False)
monkeypatch.delenv("MODAL_TOKEN_SECRET", raising=False)
with patch.object(Path, "home", side_effect=PermissionError("denied")):
assert has_direct_modal_credentials() is False
def test_home_dir_permission_denied_with_env_vars(self, monkeypatch):
"""PermissionError on Path.home() should not prevent env var detection."""
monkeypatch.setenv("MODAL_TOKEN_ID", "id-123")
monkeypatch.setenv("MODAL_TOKEN_SECRET", "sec-456")
with patch.object(Path, "home", side_effect=PermissionError("denied")):
assert has_direct_modal_credentials() is True
# ---------------------------------------------------------------------------
# prefers_gateway
# ---------------------------------------------------------------------------
class TestPrefersGateway:
"""Honor bool-ish config values for tool gateway routing."""
def test_returns_false_for_quoted_false(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.config.load_config",
lambda: {"web": {"use_gateway": "false"}},
)
assert prefers_gateway("web") is False
def test_returns_true_for_quoted_true(self, monkeypatch):
monkeypatch.setattr(
"hermes_cli.config.load_config",
lambda: {"web": {"use_gateway": "true"}},
)
assert prefers_gateway("web") is True
# ---------------------------------------------------------------------------
# resolve_modal_backend_state
# ---------------------------------------------------------------------------
class TestResolveModalBackendState:
"""Full matrix of direct vs managed Modal backend selection."""
@staticmethod
def _resolve(monkeypatch, mode, *, has_direct, managed_ready, nous_enabled=False):
"""Helper to call resolve_modal_backend_state with feature flag control."""
monkeypatch.setattr(
"tools.tool_backend_helpers.managed_nous_tools_enabled",
lambda: nous_enabled,
)
return resolve_modal_backend_state(
mode, has_direct=has_direct, managed_ready=managed_ready
)
# --- auto mode ---
def test_auto_prefers_managed_when_available(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=True, managed_ready=True, nous_enabled=True)
assert result["selected_backend"] == "managed"
def test_auto_falls_back_to_direct(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=True, managed_ready=False, nous_enabled=True)
assert result["selected_backend"] == "direct"
def test_auto_no_backends_available(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=False, managed_ready=False)
assert result["selected_backend"] is None
def test_auto_managed_ready_but_nous_disabled(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=True, managed_ready=True, nous_enabled=False)
assert result["selected_backend"] == "direct"
def test_auto_nothing_when_only_managed_and_nous_disabled(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=False, managed_ready=True, nous_enabled=False)
assert result["selected_backend"] is None
# --- direct mode ---
def test_direct_selects_direct_when_available(self, monkeypatch):
result = self._resolve(monkeypatch, "direct", has_direct=True, managed_ready=True, nous_enabled=True)
assert result["selected_backend"] == "direct"
def test_direct_none_when_no_credentials(self, monkeypatch):
result = self._resolve(monkeypatch, "direct", has_direct=False, managed_ready=True, nous_enabled=True)
assert result["selected_backend"] is None
# --- managed mode ---
def test_managed_selects_managed_when_ready_and_enabled(self, monkeypatch):
result = self._resolve(monkeypatch, "managed", has_direct=True, managed_ready=True, nous_enabled=True)
assert result["selected_backend"] == "managed"
def test_managed_none_when_not_ready(self, monkeypatch):
result = self._resolve(monkeypatch, "managed", has_direct=True, managed_ready=False, nous_enabled=True)
assert result["selected_backend"] is None
def test_managed_blocked_when_nous_disabled(self, monkeypatch):
result = self._resolve(monkeypatch, "managed", has_direct=True, managed_ready=True, nous_enabled=False)
assert result["selected_backend"] is None
assert result["managed_mode_blocked"] is True
# --- return structure ---
def test_return_dict_keys(self, monkeypatch):
result = self._resolve(monkeypatch, "auto", has_direct=True, managed_ready=False)
expected_keys = {
"requested_mode",
"mode",
"has_direct",
"managed_ready",
"managed_mode_blocked",
"selected_backend",
}
assert set(result.keys()) == expected_keys
def test_passthrough_flags(self, monkeypatch):
result = self._resolve(monkeypatch, "direct", has_direct=True, managed_ready=False)
assert result["requested_mode"] == "direct"
assert result["mode"] == "direct"
assert result["has_direct"] is True
assert result["managed_ready"] is False
# --- invalid mode falls back to auto ---
def test_invalid_mode_treated_as_auto(self, monkeypatch):
result = self._resolve(monkeypatch, "bogus", has_direct=True, managed_ready=False)
assert result["requested_mode"] == "auto"
assert result["mode"] == "auto"
# ---------------------------------------------------------------------------
# resolve_openai_audio_api_key
# ---------------------------------------------------------------------------
class TestResolveOpenaiAudioApiKey:
"""Priority: VOICE_TOOLS_OPENAI_KEY > OPENAI_API_KEY."""
def test_voice_key_preferred(self, monkeypatch):
monkeypatch.setenv("VOICE_TOOLS_OPENAI_KEY", "voice-key")
monkeypatch.setenv("OPENAI_API_KEY", "general-key")
assert resolve_openai_audio_api_key() == "voice-key"
def test_falls_back_to_openai_key(self, monkeypatch):
monkeypatch.delenv("VOICE_TOOLS_OPENAI_KEY", raising=False)
monkeypatch.setenv("OPENAI_API_KEY", "general-key")
assert resolve_openai_audio_api_key() == "general-key"
def test_empty_voice_key_falls_back(self, monkeypatch):
monkeypatch.setenv("VOICE_TOOLS_OPENAI_KEY", "")
monkeypatch.setenv("OPENAI_API_KEY", "general-key")
assert resolve_openai_audio_api_key() == "general-key"
def test_no_keys_returns_empty(self, monkeypatch):
monkeypatch.delenv("VOICE_TOOLS_OPENAI_KEY", raising=False)
monkeypatch.delenv("OPENAI_API_KEY", raising=False)
assert resolve_openai_audio_api_key() == ""
def test_strips_whitespace(self, monkeypatch):
monkeypatch.setenv("VOICE_TOOLS_OPENAI_KEY", " voice-key ")
monkeypatch.delenv("OPENAI_API_KEY", raising=False)
assert resolve_openai_audio_api_key() == "voice-key"