import { describe, it, expect, vi, afterEach } from "vitest";

import { GitHubError, RateLimitError, NotFoundError } from "../errors.js";

// Validate error class hierarchy and messages

describe("GitHubError", () => {

it("stores statusCode and endpoint", () => {

const err = new GitHubError("bad request", 400, "/repos/foo");

expect(err.statusCode).toBe(400);

expect(err.endpoint).toBe("/repos/foo");

expect(err.name).toBe("GitHubError");

});

});

describe("NotFoundError", () => {

it("sets status 404 and includes resource in message", () => {

const err = new NotFoundError("TMHSDigital/steam-mcp");

expect(err.statusCode).toBe(404);

expect(err.message).toContain("TMHSDigital/steam-mcp");

expect(err instanceof GitHubError).toBe(true);

});

});

describe("RateLimitError", () => {

it("sets status 429 and mentions GH_TOKEN", () => {

const err = new RateLimitError();

expect(err.statusCode).toBe(429);

expect(err.message).toContain("GH_TOKEN");

expect(err instanceof GitHubError).toBe(true);

});

});

// Validate schema helpers

describe("extractStandardsVersion", () => {

it("extracts version from HTML comment", async () => {

const { extractStandardsVersion } = await import("../github.js");

expect(

extractStandardsVersion("<!-- standards-version: 1.10.0 -->\n# CLAUDE.md"),

).toBe("1.10.0");

});

it("returns null when marker is absent", async () => {

const { extractStandardsVersion } = await import("../github.js");

expect(extractStandardsVersion("# CLAUDE.md\nNo marker here.")).toBeNull();

});

it("tolerates extra whitespace in comment", async () => {

const { extractStandardsVersion } = await import("../github.js");

expect(

extractStandardsVersion("<!-- standards-version: 1.9.5 -->"),

).toBe("1.9.5");

});

});

// Validate fetch error mapping

describe("githubFetch error mapping", () => {

afterEach(() => {

vi.restoreAllMocks();

});

it("throws NotFoundError on 404", async () => {

vi.stubGlobal(

"fetch",

vi.fn().mockResolvedValue({ ok: false, status: 404, json: async () => ({}) }),

);

const { githubFetch } = await import("../github.js");

await expect(githubFetch("/repos/x/y")).rejects.toThrow(NotFoundError);

vi.unstubAllGlobals();

});

it("throws RateLimitError on 429", async () => {

vi.stubGlobal(

"fetch",

vi.fn().mockResolvedValue({ ok: false, status: 429, json: async () => ({}) }),

);

const { githubFetch } = await import("../github.js");

await expect(githubFetch("/repos/x/y")).rejects.toThrow(RateLimitError);

vi.unstubAllGlobals();

});

});