1395 lines
31 KiB
TypeScript
1395 lines
31 KiB
TypeScript
import { McpServer } from "./mcp.js";
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import { Client } from "../client/index.js";
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import { InMemoryTransport } from "../inMemory.js";
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import { z } from "zod";
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import {
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ListToolsResultSchema,
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CallToolResultSchema,
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ListResourcesResultSchema,
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ListResourceTemplatesResultSchema,
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ReadResourceResultSchema,
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ListPromptsResultSchema,
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GetPromptResultSchema,
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CompleteResultSchema,
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} from "../types.js";
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import { ResourceTemplate } from "./mcp.js";
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import { completable } from "./completable.js";
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import { UriTemplate } from "../shared/uriTemplate.js";
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describe("McpServer", () => {
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test("should expose underlying Server instance", () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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expect(mcpServer.server).toBeDefined();
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});
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test("should allow sending notifications via Server", async () => {
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const mcpServer = new McpServer(
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{
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name: "test server",
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version: "1.0",
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},
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{ capabilities: { logging: {} } },
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);
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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// This should work because we're using the underlying server
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await expect(
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mcpServer.server.sendLoggingMessage({
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level: "info",
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data: "Test log message",
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}),
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).resolves.not.toThrow();
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});
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});
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describe("ResourceTemplate", () => {
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test("should create ResourceTemplate with string pattern", () => {
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const template = new ResourceTemplate("test://{category}/{id}", {
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list: undefined,
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});
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expect(template.uriTemplate.toString()).toBe("test://{category}/{id}");
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expect(template.listCallback).toBeUndefined();
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});
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test("should create ResourceTemplate with UriTemplate", () => {
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const uriTemplate = new UriTemplate("test://{category}/{id}");
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const template = new ResourceTemplate(uriTemplate, { list: undefined });
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expect(template.uriTemplate).toBe(uriTemplate);
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expect(template.listCallback).toBeUndefined();
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});
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test("should create ResourceTemplate with list callback", async () => {
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const list = jest.fn().mockResolvedValue({
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resources: [{ name: "Test", uri: "test://example" }],
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});
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const template = new ResourceTemplate("test://{id}", { list });
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expect(template.listCallback).toBe(list);
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const abortController = new AbortController();
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const result = await template.listCallback?.({
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signal: abortController.signal,
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});
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expect(result?.resources).toHaveLength(1);
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expect(list).toHaveBeenCalled();
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});
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});
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describe("tool()", () => {
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test("should register zero-argument tool", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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mcpServer.tool("test", async () => ({
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content: [
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{
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type: "text",
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text: "Test response",
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},
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],
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}));
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "tools/list",
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},
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ListToolsResultSchema,
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);
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expect(result.tools).toHaveLength(1);
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expect(result.tools[0].name).toBe("test");
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expect(result.tools[0].inputSchema).toEqual({
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type: "object",
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});
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});
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test("should register tool with args schema", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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mcpServer.tool(
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"test",
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{
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name: z.string(),
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value: z.number(),
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},
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async ({ name, value }) => ({
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content: [
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{
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type: "text",
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text: `${name}: ${value}`,
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},
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],
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}),
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);
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "tools/list",
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},
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ListToolsResultSchema,
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);
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expect(result.tools).toHaveLength(1);
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expect(result.tools[0].name).toBe("test");
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expect(result.tools[0].inputSchema).toMatchObject({
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type: "object",
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properties: {
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name: { type: "string" },
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value: { type: "number" },
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},
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});
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});
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test("should register tool with description", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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mcpServer.tool("test", "Test description", async () => ({
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content: [
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{
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type: "text",
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text: "Test response",
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},
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],
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}));
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "tools/list",
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},
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ListToolsResultSchema,
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);
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expect(result.tools).toHaveLength(1);
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expect(result.tools[0].name).toBe("test");
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expect(result.tools[0].description).toBe("Test description");
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});
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test("should validate tool args", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client(
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{
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name: "test client",
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version: "1.0",
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},
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{
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capabilities: {
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tools: {},
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},
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},
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);
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mcpServer.tool(
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"test",
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{
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name: z.string(),
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value: z.number(),
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},
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async ({ name, value }) => ({
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content: [
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{
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type: "text",
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text: `${name}: ${value}`,
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},
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],
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}),
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);
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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await expect(
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client.request(
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{
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method: "tools/call",
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params: {
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name: "test",
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arguments: {
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name: "test",
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value: "not a number",
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},
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},
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},
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CallToolResultSchema,
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),
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).rejects.toThrow(/Invalid arguments/);
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});
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test("should prevent duplicate tool registration", () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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mcpServer.tool("test", async () => ({
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content: [
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{
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type: "text",
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text: "Test response",
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},
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],
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}));
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expect(() => {
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mcpServer.tool("test", async () => ({
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content: [
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{
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type: "text",
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text: "Test response 2",
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},
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],
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}));
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}).toThrow(/already registered/);
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});
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test("should allow client to call server tools", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client(
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{
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name: "test client",
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version: "1.0",
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},
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{
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capabilities: {
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tools: {},
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},
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},
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);
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mcpServer.tool(
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"test",
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"Test tool",
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{
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input: z.string(),
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},
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async ({ input }) => ({
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content: [
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{
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type: "text",
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text: `Processed: ${input}`,
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},
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],
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}),
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);
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "tools/call",
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params: {
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name: "test",
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arguments: {
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input: "hello",
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},
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},
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},
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CallToolResultSchema,
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);
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expect(result.content).toEqual([
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{
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type: "text",
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text: "Processed: hello",
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},
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]);
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});
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test("should handle server tool errors gracefully", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client(
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{
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name: "test client",
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version: "1.0",
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},
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{
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capabilities: {
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tools: {},
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},
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},
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);
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mcpServer.tool("error-test", async () => {
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throw new Error("Tool execution failed");
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});
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "tools/call",
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params: {
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name: "error-test",
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},
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},
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CallToolResultSchema,
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);
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expect(result.isError).toBe(true);
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expect(result.content).toEqual([
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{
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type: "text",
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text: "Tool execution failed",
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},
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]);
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});
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test("should throw McpError for invalid tool name", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client(
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{
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name: "test client",
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version: "1.0",
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},
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{
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capabilities: {
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tools: {},
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},
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},
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);
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mcpServer.tool("test-tool", async () => ({
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content: [
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{
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type: "text",
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text: "Test response",
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},
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],
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}));
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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await expect(
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client.request(
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{
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method: "tools/call",
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params: {
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name: "nonexistent-tool",
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},
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},
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CallToolResultSchema,
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),
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).rejects.toThrow(/Tool nonexistent-tool not found/);
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});
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});
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describe("resource()", () => {
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test("should register resource with uri and readCallback", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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mcpServer.resource("test", "test://resource", async () => ({
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contents: [
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{
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uri: "test://resource",
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text: "Test content",
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},
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],
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}));
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const [clientTransport, serverTransport] =
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InMemoryTransport.createLinkedPair();
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await Promise.all([
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client.connect(clientTransport),
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mcpServer.server.connect(serverTransport),
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]);
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const result = await client.request(
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{
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method: "resources/list",
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},
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ListResourcesResultSchema,
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);
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expect(result.resources).toHaveLength(1);
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expect(result.resources[0].name).toBe("test");
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expect(result.resources[0].uri).toBe("test://resource");
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});
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test("should register resource with metadata", async () => {
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const mcpServer = new McpServer({
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name: "test server",
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version: "1.0",
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});
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const client = new Client({
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name: "test client",
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version: "1.0",
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});
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mcpServer.resource(
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"test",
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"test://resource",
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{
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description: "Test resource",
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mimeType: "text/plain",
|
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},
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async () => ({
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contents: [
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{
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uri: "test://resource",
|
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text: "Test content",
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},
|
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],
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}),
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);
|
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|
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const [clientTransport, serverTransport] =
|
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InMemoryTransport.createLinkedPair();
|
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|
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await Promise.all([
|
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client.connect(clientTransport),
|
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mcpServer.server.connect(serverTransport),
|
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]);
|
|
|
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const result = await client.request(
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{
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method: "resources/list",
|
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},
|
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ListResourcesResultSchema,
|
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);
|
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|
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expect(result.resources).toHaveLength(1);
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expect(result.resources[0].description).toBe("Test resource");
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expect(result.resources[0].mimeType).toBe("text/plain");
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});
|
|
|
|
test("should register resource template", async () => {
|
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const mcpServer = new McpServer({
|
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name: "test server",
|
|
version: "1.0",
|
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});
|
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const client = new Client({
|
|
name: "test client",
|
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version: "1.0",
|
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});
|
|
|
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mcpServer.resource(
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"test",
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new ResourceTemplate("test://resource/{id}", { list: undefined }),
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async () => ({
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contents: [
|
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{
|
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uri: "test://resource/123",
|
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text: "Test content",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
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const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "resources/templates/list",
|
|
},
|
|
ListResourceTemplatesResultSchema,
|
|
);
|
|
|
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expect(result.resourceTemplates).toHaveLength(1);
|
|
expect(result.resourceTemplates[0].name).toBe("test");
|
|
expect(result.resourceTemplates[0].uriTemplate).toBe(
|
|
"test://resource/{id}",
|
|
);
|
|
});
|
|
|
|
test("should register resource template with listCallback", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
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|
|
mcpServer.resource(
|
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"test",
|
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new ResourceTemplate("test://resource/{id}", {
|
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list: async () => ({
|
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resources: [
|
|
{
|
|
name: "Resource 1",
|
|
uri: "test://resource/1",
|
|
},
|
|
{
|
|
name: "Resource 2",
|
|
uri: "test://resource/2",
|
|
},
|
|
],
|
|
}),
|
|
}),
|
|
async (uri) => ({
|
|
contents: [
|
|
{
|
|
uri: uri.href,
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "resources/list",
|
|
},
|
|
ListResourcesResultSchema,
|
|
);
|
|
|
|
expect(result.resources).toHaveLength(2);
|
|
expect(result.resources[0].name).toBe("Resource 1");
|
|
expect(result.resources[0].uri).toBe("test://resource/1");
|
|
expect(result.resources[1].name).toBe("Resource 2");
|
|
expect(result.resources[1].uri).toBe("test://resource/2");
|
|
});
|
|
|
|
test("should pass template variables to readCallback", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.resource(
|
|
"test",
|
|
new ResourceTemplate("test://resource/{category}/{id}", {
|
|
list: undefined,
|
|
}),
|
|
async (uri, { category, id }) => ({
|
|
contents: [
|
|
{
|
|
uri: uri.href,
|
|
text: `Category: ${category}, ID: ${id}`,
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "resources/read",
|
|
params: {
|
|
uri: "test://resource/books/123",
|
|
},
|
|
},
|
|
ReadResourceResultSchema,
|
|
);
|
|
|
|
expect(result.contents[0].text).toBe("Category: books, ID: 123");
|
|
});
|
|
|
|
test("should prevent duplicate resource registration", () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.resource("test", "test://resource", async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource",
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}));
|
|
|
|
expect(() => {
|
|
mcpServer.resource("test2", "test://resource", async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource",
|
|
text: "Test content 2",
|
|
},
|
|
],
|
|
}));
|
|
}).toThrow(/already registered/);
|
|
});
|
|
|
|
test("should prevent duplicate resource template registration", () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.resource(
|
|
"test",
|
|
new ResourceTemplate("test://resource/{id}", { list: undefined }),
|
|
async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource/123",
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
expect(() => {
|
|
mcpServer.resource(
|
|
"test",
|
|
new ResourceTemplate("test://resource/{id}", { list: undefined }),
|
|
async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource/123",
|
|
text: "Test content 2",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
}).toThrow(/already registered/);
|
|
});
|
|
|
|
test("should handle resource read errors gracefully", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.resource("error-test", "test://error", async () => {
|
|
throw new Error("Resource read failed");
|
|
});
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
await expect(
|
|
client.request(
|
|
{
|
|
method: "resources/read",
|
|
params: {
|
|
uri: "test://error",
|
|
},
|
|
},
|
|
ReadResourceResultSchema,
|
|
),
|
|
).rejects.toThrow(/Resource read failed/);
|
|
});
|
|
|
|
test("should throw McpError for invalid resource URI", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.resource("test", "test://resource", async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource",
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}));
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
await expect(
|
|
client.request(
|
|
{
|
|
method: "resources/read",
|
|
params: {
|
|
uri: "test://nonexistent",
|
|
},
|
|
},
|
|
ReadResourceResultSchema,
|
|
),
|
|
).rejects.toThrow(/Resource test:\/\/nonexistent not found/);
|
|
});
|
|
|
|
test("should support completion of resource template parameters", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
resources: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.resource(
|
|
"test",
|
|
new ResourceTemplate("test://resource/{category}", {
|
|
list: undefined,
|
|
complete: {
|
|
category: () => ["books", "movies", "music"],
|
|
},
|
|
}),
|
|
async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource/test",
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "completion/complete",
|
|
params: {
|
|
ref: {
|
|
type: "ref/resource",
|
|
uri: "test://resource/{category}",
|
|
},
|
|
argument: {
|
|
name: "category",
|
|
value: "",
|
|
},
|
|
},
|
|
},
|
|
CompleteResultSchema,
|
|
);
|
|
|
|
expect(result.completion.values).toEqual(["books", "movies", "music"]);
|
|
expect(result.completion.total).toBe(3);
|
|
});
|
|
|
|
test("should support filtered completion of resource template parameters", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
resources: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.resource(
|
|
"test",
|
|
new ResourceTemplate("test://resource/{category}", {
|
|
list: undefined,
|
|
complete: {
|
|
category: (test: string) =>
|
|
["books", "movies", "music"].filter((value) =>
|
|
value.startsWith(test),
|
|
),
|
|
},
|
|
}),
|
|
async () => ({
|
|
contents: [
|
|
{
|
|
uri: "test://resource/test",
|
|
text: "Test content",
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "completion/complete",
|
|
params: {
|
|
ref: {
|
|
type: "ref/resource",
|
|
uri: "test://resource/{category}",
|
|
},
|
|
argument: {
|
|
name: "category",
|
|
value: "m",
|
|
},
|
|
},
|
|
},
|
|
CompleteResultSchema,
|
|
);
|
|
|
|
expect(result.completion.values).toEqual(["movies", "music"]);
|
|
expect(result.completion.total).toBe(2);
|
|
});
|
|
});
|
|
|
|
describe("prompt()", () => {
|
|
test("should register zero-argument prompt", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.prompt("test", async () => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: "Test response",
|
|
},
|
|
},
|
|
],
|
|
}));
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "prompts/list",
|
|
},
|
|
ListPromptsResultSchema,
|
|
);
|
|
|
|
expect(result.prompts).toHaveLength(1);
|
|
expect(result.prompts[0].name).toBe("test");
|
|
expect(result.prompts[0].arguments).toBeUndefined();
|
|
});
|
|
|
|
test("should register prompt with args schema", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.prompt(
|
|
"test",
|
|
{
|
|
name: z.string(),
|
|
value: z.string(),
|
|
},
|
|
async ({ name, value }) => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: `${name}: ${value}`,
|
|
},
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "prompts/list",
|
|
},
|
|
ListPromptsResultSchema,
|
|
);
|
|
|
|
expect(result.prompts).toHaveLength(1);
|
|
expect(result.prompts[0].name).toBe("test");
|
|
expect(result.prompts[0].arguments).toEqual([
|
|
{ name: "name", required: true },
|
|
{ name: "value", required: true },
|
|
]);
|
|
});
|
|
|
|
test("should register prompt with description", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
const client = new Client({
|
|
name: "test client",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.prompt("test", "Test description", async () => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: "Test response",
|
|
},
|
|
},
|
|
],
|
|
}));
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "prompts/list",
|
|
},
|
|
ListPromptsResultSchema,
|
|
);
|
|
|
|
expect(result.prompts).toHaveLength(1);
|
|
expect(result.prompts[0].name).toBe("test");
|
|
expect(result.prompts[0].description).toBe("Test description");
|
|
});
|
|
|
|
test("should validate prompt args", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
prompts: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.prompt(
|
|
"test",
|
|
{
|
|
name: z.string(),
|
|
value: z.string().min(3),
|
|
},
|
|
async ({ name, value }) => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: `${name}: ${value}`,
|
|
},
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
await expect(
|
|
client.request(
|
|
{
|
|
method: "prompts/get",
|
|
params: {
|
|
name: "test",
|
|
arguments: {
|
|
name: "test",
|
|
value: "ab", // Too short
|
|
},
|
|
},
|
|
},
|
|
GetPromptResultSchema,
|
|
),
|
|
).rejects.toThrow(/Invalid arguments/);
|
|
});
|
|
|
|
test("should prevent duplicate prompt registration", () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
mcpServer.prompt("test", async () => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: "Test response",
|
|
},
|
|
},
|
|
],
|
|
}));
|
|
|
|
expect(() => {
|
|
mcpServer.prompt("test", async () => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: "Test response 2",
|
|
},
|
|
},
|
|
],
|
|
}));
|
|
}).toThrow(/already registered/);
|
|
});
|
|
|
|
test("should throw McpError for invalid prompt name", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
prompts: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.prompt("test-prompt", async () => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: "Test response",
|
|
},
|
|
},
|
|
],
|
|
}));
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
await expect(
|
|
client.request(
|
|
{
|
|
method: "prompts/get",
|
|
params: {
|
|
name: "nonexistent-prompt",
|
|
},
|
|
},
|
|
GetPromptResultSchema,
|
|
),
|
|
).rejects.toThrow(/Prompt nonexistent-prompt not found/);
|
|
});
|
|
|
|
test("should support completion of prompt arguments", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
prompts: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.prompt(
|
|
"test-prompt",
|
|
{
|
|
name: completable(z.string(), () => ["Alice", "Bob", "Charlie"]),
|
|
},
|
|
async ({ name }) => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: `Hello ${name}`,
|
|
},
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "completion/complete",
|
|
params: {
|
|
ref: {
|
|
type: "ref/prompt",
|
|
name: "test-prompt",
|
|
},
|
|
argument: {
|
|
name: "name",
|
|
value: "",
|
|
},
|
|
},
|
|
},
|
|
CompleteResultSchema,
|
|
);
|
|
|
|
expect(result.completion.values).toEqual(["Alice", "Bob", "Charlie"]);
|
|
expect(result.completion.total).toBe(3);
|
|
});
|
|
|
|
test("should support filtered completion of prompt arguments", async () => {
|
|
const mcpServer = new McpServer({
|
|
name: "test server",
|
|
version: "1.0",
|
|
});
|
|
|
|
const client = new Client(
|
|
{
|
|
name: "test client",
|
|
version: "1.0",
|
|
},
|
|
{
|
|
capabilities: {
|
|
prompts: {},
|
|
},
|
|
},
|
|
);
|
|
|
|
mcpServer.prompt(
|
|
"test-prompt",
|
|
{
|
|
name: completable(z.string(), (test) =>
|
|
["Alice", "Bob", "Charlie"].filter((value) => value.startsWith(test)),
|
|
),
|
|
},
|
|
async ({ name }) => ({
|
|
messages: [
|
|
{
|
|
role: "assistant",
|
|
content: {
|
|
type: "text",
|
|
text: `Hello ${name}`,
|
|
},
|
|
},
|
|
],
|
|
}),
|
|
);
|
|
|
|
const [clientTransport, serverTransport] =
|
|
InMemoryTransport.createLinkedPair();
|
|
|
|
await Promise.all([
|
|
client.connect(clientTransport),
|
|
mcpServer.server.connect(serverTransport),
|
|
]);
|
|
|
|
const result = await client.request(
|
|
{
|
|
method: "completion/complete",
|
|
params: {
|
|
ref: {
|
|
type: "ref/prompt",
|
|
name: "test-prompt",
|
|
},
|
|
argument: {
|
|
name: "name",
|
|
value: "A",
|
|
},
|
|
},
|
|
},
|
|
CompleteResultSchema,
|
|
);
|
|
|
|
expect(result.completion.values).toEqual(["Alice"]);
|
|
expect(result.completion.total).toBe(1);
|
|
});
|
|
});
|