DynamoDB MCP Server

import pytest import os import shutil from pathlib import Path from mcp_local_dev.types import Sandbox, PackageManager from mcp_local_dev.sandboxes.sandbox import run_sandboxed_command, add_package_manager_bin_path @pytest.mark.asyncio async def test_sandbox_isolation(sandbox: Sandbox): """Test sandbox provides proper isolation""" # Test directory isolation sb = sandbox assert sb.work_dir.exists() assert sandbox.bin_dir.exists() assert sandbox.tmp_dir.exists() # Test environment isolation assert "TMPDIR" in sandbox.env_vars assert sandbox.env_vars["TMPDIR"] == str(sandbox.tmp_dir) assert "HOME" in sandbox.env_vars assert sandbox.env_vars["HOME"] == str(sandbox.work_dir) @pytest.mark.asyncio async def test_sandbox_command_execution(sandbox, fixture_path): """Test running commands in sandbox""" test_file = sandbox.work_dir / "test.txt" test_file.write_text("hello") # Run command in sandbox returncode, stdout, stderr = await run_sandboxed_command(sandbox, f"cat {test_file.name}") assert returncode == 0 assert stdout.decode().strip() == "hello" @pytest.mark.asyncio async def test_add_package_manager_bin_path(sandbox: Sandbox): """Test package manager PATH updates""" original_path = sandbox.env_vars["PATH"] # Test UV add_package_manager_bin_path(sandbox, PackageManager.UV) assert str(sandbox.work_dir / ".venv" / "bin") in sandbox.env_vars["PATH"] # Test NPM add_package_manager_bin_path(sandbox, PackageManager.NPM) assert str(sandbox.work_dir / "node_modules" / ".bin") in sandbox.env_vars["PATH"] @pytest.mark.asyncio async def test_sandbox_environment_isolation(sandbox: Sandbox): """Test sandbox environment isolation""" returncode, stdout, _ = await run_sandboxed_command( sandbox, "env" ) env_vars = dict(line.split("=", 1) for line in stdout.decode().splitlines() if "=" in line) assert env_vars["HOME"] == str(sandbox.work_dir) assert env_vars["TMPDIR"] == str(sandbox.tmp_dir) assert str(sandbox.bin_dir) in env_vars["PATH"] def test_package_manager_path_order(sandbox: Sandbox): """Test package manager PATH is prepended correctly""" original_path = sandbox.env_vars["PATH"] add_package_manager_bin_path(sandbox, PackageManager.UV) new_path = sandbox.env_vars["PATH"] assert new_path.startswith(str(sandbox.work_dir / ".venv" / "bin")) assert original_path in new_path