TicketLab_MCP/src/hello.test.ts

import assert from "node:assert/strict";
import { describe, it } from "node:test";
import { greet, main } from "./hello.js";

describe("greet", () => {
  it("returns the default greeting", () => {
    assert.equal(greet(), "Hello, TicketLab MCP!");
  });

  it("returns a greeting for a custom name", () => {
    assert.equal(greet("World"), "Hello, World!");
  });
});

it("main emits telemetry and logs greeting", async () => {
  process.env.OTEL_EXPORTER_OTLP_ENDPOINT = "http://127.0.0.1:9";
  const logs: unknown[] = [];
  const original = console.log;
  console.log = (...args: unknown[]) => {
    logs.push(args);
  };
  try {
    await main();
    assert.deepEqual(logs, [["Hello, TicketLab MCP!"]]);
  } finally {
    console.log = original;
  }
});