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@zkl2333/mcp-test-utils

v0.2.0

Published

MCP 测试工具包:为 MCP 服务器提供通用测试功能

Readme

@zkl2333/mcp-test-utils

为 MCP 服务器测试提供通用工具:临时目录/文件工具、MCP SDK Mock、测试助手与断言。

安装

bun add -D @zkl2333/mcp-test-utils

或作为 workspace 依赖:

{
  "devDependencies": {
    "@zkl2333/mcp-test-utils": "workspace:*"
  }
}

提供的能力

  • 临时文件与目录:createTempTestDircleanupTempDircreateTestFile
  • MCP SDK Mock:createMockMcpSdk() 返回 McpServerStdioServerTransport
  • 预置 SDK 模块替换:setupMcpMocks()
  • 测试助手:createMcpTestHelper(server) 简化工具调用/查询
  • 结果断言:expectToolCall.toSucceed/.toFail/.toContain/.toMatch

快速上手

在测试入口(或每个测试文件)中预置 SDK Mock:

import { setupMcpMocks } from "@zkl2333/mcp-test-utils";
setupMcpMocks();

创建服务器并测试工具:

import { createMcpTestHelper, expectToolCall } from "@zkl2333/mcp-test-utils";
import { server } from "../src"; // 你的服务器

const helper = createMcpTestHelper(server);
const res = await helper.callTool("read-metadata", { file: "foo.jpg" });
expectToolCall.toFail(res);
expectToolCall.toContain(res, "不存在");

运行测试

bun run test
bun run test:coverage

路线图

  • 更多内置断言
  • 更丰富的 Mock 能力(会话、事件)