Band MCP Server

import { afterEach, beforeAll, describe, expect, it, jest } from "@jest/globals"; let handleToolCall: typeof import("../comments/tool.js")["handleToolCall"]; let bandApiClient: typeof import("../client.js")["bandApiClient"]; beforeAll(async () => { ({ handleToolCall } = await import("../comments/tool.js")); ({ bandApiClient } = await import("../client.js")); }); afterEach(() => { jest.restoreAllMocks(); }); describe("comments tool handleToolCall", () => { it("derives identifiers from url and filters the target comment", async () => { const getMock = jest .spyOn(bandApiClient, "get") .mockResolvedValue({ paging: { previous_params: null, next_params: null }, items: [ { comment_key: "AAA", content: "first", created_at: 0, author: { name: "a", description: "", profile_image_url: "" }, }, { comment_key: "TARGET", content: "target", created_at: 0, author: { name: "b", description: "", profile_image_url: "" }, }, ], } as never); const response = await handleToolCall( undefined, undefined, undefined, "https://band.us/band/BAND_KEY/post/POST_KEY?commentId=TARGET" ); expect(getMock).toHaveBeenCalledWith( "/v2/band/post/comments", { band_key: "BAND_KEY", post_key: "POST_KEY" } ); const payload = JSON.parse(response.content[0].text) as { items: Array<{ comment_key: string }>; }; expect(payload.items).toHaveLength(1); expect(payload.items[0].comment_key).toBe("TARGET"); }); it("throws when requested comment is not found", async () => { jest .spyOn(bandApiClient, "get") .mockResolvedValue({ paging: { previous_params: null, next_params: null }, items: [], } as never); await expect( handleToolCall( undefined, undefined, undefined, "https://band.us/band/BAND/post/POST?commentId=MISSING" ) ).rejects.toThrow( "Comment MISSING was not found in the retrieved page. Try fetching the comments without filtering or adjust pagination." ); }); it("throws when neither identifiers nor url provided", async () => { await expect( handleToolCall(undefined, undefined) ).rejects.toThrow( "band_key and post_key are required unless a valid BAND url is provided." ); }); });