mirror of
https://github.com/bytedance/deer-flow.git
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Ryker_Feng
6e839342a7
* feat(community): add Brave Search web search tool Add a community web_search provider backed by the official Brave Search API (https://api.search.brave.com/res/v1/web/search). API key is read from the tool config (inline api_key) or the BRAVE_SEARCH_API_KEY env var. Output schema (title/url/content) matches existing search tools. No new dependencies (uses the existing httpx). Also wires up the setup wizard, doctor health check, config example, and EN/ZH docs. * refactor(community): drop redundant [:count] slice in Brave search The Brave API already caps results via the `count` request param, so client-side slicing was redundant. Tests now simulate the API honoring `count` instead of relying on the slice. Addresses PR review nit. * style(tests): apply ruff format to test_doctor.py Collapse multiline write_text calls onto single lines to satisfy the CI ruff formatter (lint-backend was failing on format --check).
361 lines
16 KiB
Python
361 lines
16 KiB
Python
"""Unit tests for the Brave Search community web search tool."""
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import json
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from unittest.mock import MagicMock, patch
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import httpx
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import pytest
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@pytest.fixture(autouse=True)
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def reset_api_key_warned():
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"""Reset the module-level warning flag before each test."""
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import deerflow.community.brave.tools as brave_mod
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brave_mod._api_key_warned = False
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yield
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brave_mod._api_key_warned = False
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@pytest.fixture
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def mock_config_with_key():
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": "test-brave-key", "max_results": 5}
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mock.return_value.get_tool_config.return_value = tool_config
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yield mock
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@pytest.fixture
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def mock_config_no_key():
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {}
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mock.return_value.get_tool_config.return_value = tool_config
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yield mock
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def _make_brave_response(results: list) -> MagicMock:
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mock_resp = MagicMock()
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mock_resp.json.return_value = {"web": {"results": results}}
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mock_resp.raise_for_status = MagicMock()
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return mock_resp
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def _count_aware_get(results: list):
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"""Mimic Brave returning at most `count` results for the request."""
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def _get(url, **kwargs):
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count = kwargs["params"]["count"]
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return _make_brave_response(results[:count])
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return _get
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class TestGetApiKey:
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def test_returns_config_key_when_present(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": "from-config"}
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mock.return_value.get_tool_config.return_value = tool_config
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() == "from-config"
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def test_falls_back_to_env_when_config_key_empty(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": " "}
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mock.return_value.get_tool_config.return_value = tool_config
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with patch.dict("os.environ", {"BRAVE_SEARCH_API_KEY": "env-key"}, clear=True):
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() == "env-key"
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def test_falls_back_to_env_when_no_config(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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mock.return_value.get_tool_config.return_value = None
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with patch.dict("os.environ", {"BRAVE_SEARCH_API_KEY": "env-only"}, clear=True):
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() == "env-only"
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def test_ignores_legacy_brave_api_key(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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mock.return_value.get_tool_config.return_value = None
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with patch.dict("os.environ", {"BRAVE_API_KEY": "legacy"}, clear=True):
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() is None
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def test_returns_none_when_no_key_anywhere(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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mock.return_value.get_tool_config.return_value = None
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with patch.dict("os.environ", {}, clear=True):
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() is None
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def test_model_extra_none_does_not_crash(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = None
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mock.return_value.get_tool_config.return_value = tool_config
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with patch.dict("os.environ", {"BRAVE_SEARCH_API_KEY": "env-key"}, clear=True):
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from deerflow.community.brave.tools import _get_api_key
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assert _get_api_key() == "env-key"
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class TestWebSearchTool:
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def test_basic_search_returns_normalized_results(self, mock_config_with_key):
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results = [
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{"title": "Result 1", "url": "https://example.com/1", "description": "Desc 1"},
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{"title": "Result 2", "url": "https://example.com/2", "description": "Desc 2"},
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]
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mock_resp = _make_brave_response(results)
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "python tutorial"})
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parsed = json.loads(result)
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assert parsed["query"] == "python tutorial"
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assert parsed["total_results"] == 2
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assert parsed["results"][0]["title"] == "Result 1"
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assert parsed["results"][0]["url"] == "https://example.com/1"
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assert parsed["results"][0]["content"] == "Desc 1"
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def test_respects_max_results_from_config(self, mock_config_with_key):
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mock_config_with_key.return_value.get_tool_config.return_value.model_extra = {
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"api_key": "test-key",
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"max_results": 3,
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}
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results = [{"title": f"R{i}", "url": f"https://x.com/{i}", "description": f"D{i}"} for i in range(10)]
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.side_effect = _count_aware_get(results)
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert parsed["total_results"] == 3
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assert len(parsed["results"]) == 3
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def test_max_results_parameter_accepted(self, mock_config_no_key):
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"""Tool accepts max_results as a call parameter when config does not override it."""
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results = [{"title": f"R{i}", "url": f"https://x.com/{i}", "description": f"D{i}"} for i in range(10)]
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with patch.dict("os.environ", {"BRAVE_SEARCH_API_KEY": "env-key"}, clear=True):
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.side_effect = _count_aware_get(results)
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test", "max_results": 2})
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parsed = json.loads(result)
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assert parsed["total_results"] == 2
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def test_config_max_results_overrides_parameter(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": "test-key", "max_results": 3}
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mock.return_value.get_tool_config.return_value = tool_config
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results = [{"title": f"R{i}", "url": f"https://x.com/{i}", "description": f"D{i}"} for i in range(10)]
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.side_effect = _count_aware_get(results)
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test", "max_results": 8})
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parsed = json.loads(result)
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assert parsed["total_results"] == 3
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def test_max_results_string_from_env_is_coerced_and_clamped(self):
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"""Env-sourced max_results is a string and must be coerced and clamped to 20."""
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": "test-key", "max_results": "50"}
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mock.return_value.get_tool_config.return_value = tool_config
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results = [{"title": f"R{i}", "url": f"https://x.com/{i}", "description": f"D{i}"} for i in range(30)]
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_get = mock_client_cls.return_value.__enter__.return_value.get
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mock_get.side_effect = _count_aware_get(results)
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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params = mock_get.call_args.kwargs["params"]
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assert params["count"] == 20
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assert parsed["total_results"] == 20
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def test_invalid_max_results_falls_back_to_default(self, caplog):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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tool_config = MagicMock()
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tool_config.model_extra = {"api_key": "test-key", "max_results": "abc"}
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mock.return_value.get_tool_config.return_value = tool_config
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results = [{"title": f"R{i}", "url": f"https://x.com/{i}", "description": f"D{i}"} for i in range(10)]
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_get = mock_client_cls.return_value.__enter__.return_value.get
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mock_get.side_effect = _count_aware_get(results)
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from deerflow.community.brave.tools import web_search_tool
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with caplog.at_level("WARNING", logger="deerflow.community.brave.tools"):
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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params = mock_get.call_args.kwargs["params"]
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assert params["count"] == 5
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assert parsed["total_results"] == 5
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assert any("Invalid Brave Search max_results" in record.message for record in caplog.records)
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def test_empty_results_returns_error_json(self, mock_config_with_key):
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mock_resp = _make_brave_response([])
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "no results"})
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parsed = json.loads(result)
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assert parsed["error"] == "No results found"
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assert parsed["query"] == "no results"
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def test_missing_web_key_returns_error_json(self, mock_config_with_key):
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"""A response without a `web` block should be treated as no results."""
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mock_resp = MagicMock()
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mock_resp.json.return_value = {}
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mock_resp.raise_for_status = MagicMock()
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert parsed["error"] == "No results found"
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def test_missing_api_key_returns_error_json(self, mock_config_no_key):
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with patch.dict("os.environ", {}, clear=True):
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert "error" in parsed
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assert "BRAVE_SEARCH_API_KEY" in parsed["error"]
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def test_missing_api_key_logs_warning_once(self, mock_config_no_key, caplog):
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import logging
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with patch.dict("os.environ", {}, clear=True):
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from deerflow.community.brave.tools import web_search_tool
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with caplog.at_level(logging.WARNING, logger="deerflow.community.brave.tools"):
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web_search_tool.invoke({"query": "q1"})
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web_search_tool.invoke({"query": "q2"})
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warnings = [r for r in caplog.records if r.levelno == logging.WARNING]
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assert len(warnings) == 1
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def test_http_error_returns_structured_error(self, mock_config_with_key):
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mock_error_response = MagicMock()
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mock_error_response.status_code = 403
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mock_error_response.text = "Forbidden"
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.side_effect = httpx.HTTPStatusError("403", request=MagicMock(), response=mock_error_response)
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert "error" in parsed
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assert "403" in parsed["error"]
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def test_network_exception_returns_error_json(self, mock_config_with_key):
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.side_effect = Exception("timeout")
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert "error" in parsed
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def test_sends_correct_headers_and_params(self, mock_config_with_key):
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results = [{"title": "T", "url": "https://x.com", "description": "D"}]
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mock_resp = _make_brave_response(results)
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_get = mock_client_cls.return_value.__enter__.return_value.get
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mock_get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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web_search_tool.invoke({"query": "hello world"})
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call_kwargs = mock_get.call_args
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headers = call_kwargs.kwargs["headers"]
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params = call_kwargs.kwargs["params"]
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assert headers["X-Subscription-Token"] == "test-brave-key"
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assert params["q"] == "hello world"
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assert params["count"] == 5
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def test_uses_env_key_when_config_absent(self):
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with patch("deerflow.community.brave.tools.get_app_config") as mock:
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mock.return_value.get_tool_config.return_value = None
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with patch.dict("os.environ", {"BRAVE_SEARCH_API_KEY": "env-only-key"}, clear=True):
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results = [{"title": "T", "url": "https://x.com", "description": "D"}]
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mock_resp = _make_brave_response(results)
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_get = mock_client_cls.return_value.__enter__.return_value.get
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mock_get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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web_search_tool.invoke({"query": "env key test"})
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headers = mock_get.call_args.kwargs["headers"]
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assert headers["X-Subscription-Token"] == "env-only-key"
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def test_partial_fields_in_result(self, mock_config_with_key):
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"""Missing title/url/description should default to empty string."""
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results = [{}]
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mock_resp = _make_brave_response(results)
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with patch("deerflow.community.brave.tools.httpx.Client") as mock_client_cls:
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mock_client_cls.return_value.__enter__.return_value.get.return_value = mock_resp
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from deerflow.community.brave.tools import web_search_tool
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result = web_search_tool.invoke({"query": "test"})
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parsed = json.loads(result)
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assert parsed["results"][0] == {"title": "", "url": "", "content": ""}
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