mirror of
https://github.com/langbot-app/LangBot.git
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235 lines
7.7 KiB
Python
235 lines
7.7 KiB
Python
from __future__ import annotations
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import os
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import tempfile
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from types import SimpleNamespace
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from unittest.mock import Mock
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import pytest
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import langbot_plugin.api.entities.builtin.resource.tool as resource_tool
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from langbot.pkg.provider.tools.loaders.native import NativeToolLoader
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from langbot.pkg.provider.tools.toolmgr import ToolManager
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class StubLoader:
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def __init__(self, tools: list[resource_tool.LLMTool] | None = None, invoke_result=None):
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self._tools = tools or []
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self._invoke_result = invoke_result
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async def get_tools(self, *_args, **_kwargs):
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return self._tools
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async def has_tool(self, name: str) -> bool:
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return any(tool.name == name for tool in self._tools)
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async def invoke_tool(self, name: str, parameters: dict, query):
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return self._invoke_result(name, parameters, query) if callable(self._invoke_result) else self._invoke_result
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async def shutdown(self):
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return None
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def make_tool(name: str) -> resource_tool.LLMTool:
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return resource_tool.LLMTool(
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name=name,
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human_desc=name,
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description=name,
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parameters={'type': 'object', 'properties': {}},
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func=lambda parameters: parameters,
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)
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@pytest.mark.asyncio
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async def test_tool_manager_lists_native_tools_first():
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manager = ToolManager(SimpleNamespace())
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manager.native_tool_loader = StubLoader([make_tool('exec')])
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manager.plugin_tool_loader = StubLoader([make_tool('plugin_tool')])
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manager.mcp_tool_loader = StubLoader([make_tool('mcp_tool')])
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tools = await manager.get_all_tools()
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assert [tool.name for tool in tools] == ['exec', 'plugin_tool', 'mcp_tool']
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@pytest.mark.asyncio
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async def test_tool_manager_routes_native_tool_calls():
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app = SimpleNamespace()
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manager = ToolManager(app)
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manager.native_tool_loader = StubLoader([make_tool('exec')], invoke_result={'backend': 'fake'})
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manager.plugin_tool_loader = StubLoader([make_tool('plugin_tool')])
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manager.mcp_tool_loader = StubLoader([make_tool('mcp_tool')])
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result = await manager.execute_func_call('exec', {'command': 'pwd'}, query=Mock())
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assert result == {'backend': 'fake'}
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@pytest.mark.asyncio
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async def test_native_tool_loader_hides_tools_when_box_unavailable():
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loader = NativeToolLoader(SimpleNamespace(box_service=SimpleNamespace(available=False)))
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assert await loader.get_tools() == []
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assert await loader.has_tool('exec') is False
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assert await loader.has_tool('read') is False
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assert await loader.has_tool('write') is False
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assert await loader.has_tool('edit') is False
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@pytest.mark.asyncio
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async def test_native_tool_loader_exposes_all_tools_when_box_available():
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loader = NativeToolLoader(SimpleNamespace(box_service=SimpleNamespace(available=True)))
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tools = await loader.get_tools()
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assert [tool.name for tool in tools] == ['exec', 'read', 'write', 'edit']
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assert await loader.has_tool('exec') is True
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assert await loader.has_tool('read') is True
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assert await loader.has_tool('write') is True
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assert await loader.has_tool('edit') is True
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# ── read/write/edit file tool tests ─────────────────────────────
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def _make_loader_with_workspace(tmpdir: str) -> tuple[NativeToolLoader, Mock]:
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logger = Mock()
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box_service = SimpleNamespace(available=True, default_host_workspace=tmpdir)
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ap = SimpleNamespace(box_service=box_service, logger=logger)
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return NativeToolLoader(ap), logger
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def _make_query() -> Mock:
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q = Mock()
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q.query_id = 'test-query-1'
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return q
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@pytest.mark.asyncio
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async def test_read_file():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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with open(os.path.join(tmpdir, 'hello.txt'), 'w') as f:
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f.write('hello world')
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result = await loader.invoke_tool('read', {'path': '/workspace/hello.txt'}, _make_query())
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assert result['ok'] is True
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assert result['content'] == 'hello world'
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@pytest.mark.asyncio
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async def test_read_nonexistent_file():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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result = await loader.invoke_tool('read', {'path': '/workspace/no_such.txt'}, _make_query())
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assert result['ok'] is False
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assert 'not found' in result['error'].lower()
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@pytest.mark.asyncio
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async def test_read_directory():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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os.makedirs(os.path.join(tmpdir, 'subdir'))
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with open(os.path.join(tmpdir, 'a.txt'), 'w') as f:
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f.write('a')
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result = await loader.invoke_tool('read', {'path': '/workspace'}, _make_query())
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assert result['ok'] is True
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assert result['is_directory'] is True
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assert 'a.txt' in result['content']
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@pytest.mark.asyncio
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async def test_write_creates_file():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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result = await loader.invoke_tool(
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'write', {'path': '/workspace/new.txt', 'content': 'new content'}, _make_query()
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)
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assert result['ok'] is True
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with open(os.path.join(tmpdir, 'new.txt')) as f:
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assert f.read() == 'new content'
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@pytest.mark.asyncio
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async def test_write_creates_subdirectories():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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result = await loader.invoke_tool(
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'write', {'path': '/workspace/sub/deep/file.txt', 'content': 'nested'}, _make_query()
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)
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assert result['ok'] is True
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with open(os.path.join(tmpdir, 'sub', 'deep', 'file.txt')) as f:
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assert f.read() == 'nested'
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@pytest.mark.asyncio
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async def test_edit_replaces_unique_string():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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with open(os.path.join(tmpdir, 'code.py'), 'w') as f:
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f.write('def foo():\n return 1\n')
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result = await loader.invoke_tool(
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'edit',
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{'path': '/workspace/code.py', 'old_string': 'return 1', 'new_string': 'return 42'},
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_make_query(),
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)
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assert result['ok'] is True
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with open(os.path.join(tmpdir, 'code.py')) as f:
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assert f.read() == 'def foo():\n return 42\n'
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@pytest.mark.asyncio
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async def test_edit_rejects_ambiguous_match():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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with open(os.path.join(tmpdir, 'dup.txt'), 'w') as f:
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f.write('aaa\naaa\n')
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result = await loader.invoke_tool(
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'edit',
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{'path': '/workspace/dup.txt', 'old_string': 'aaa', 'new_string': 'bbb'},
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_make_query(),
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)
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assert result['ok'] is False
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assert '2' in result['error']
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@pytest.mark.asyncio
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async def test_edit_rejects_missing_string():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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with open(os.path.join(tmpdir, 'x.txt'), 'w') as f:
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f.write('hello')
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result = await loader.invoke_tool(
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'edit',
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{'path': '/workspace/x.txt', 'old_string': 'nope', 'new_string': 'yes'},
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_make_query(),
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)
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assert result['ok'] is False
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assert 'not found' in result['error'].lower()
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@pytest.mark.asyncio
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async def test_path_escape_blocked():
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with tempfile.TemporaryDirectory() as tmpdir:
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loader, _ = _make_loader_with_workspace(tmpdir)
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with pytest.raises(ValueError, match='escapes'):
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await loader.invoke_tool('read', {'path': '/workspace/../../etc/passwd'}, _make_query())
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