import { describe, expect, test } from "bun:test";
import { readRuntimeConfig } from "../../src/server/config";

describe("runtime config", () => {
  test("默认使用 127.0.0.1:3000", () => {
    expect(readRuntimeConfig([], {})).toEqual({ host: "127.0.0.1", port: 3000 });
  });

  test("CLI 参数优先于环境变量", () => {
    expect(readRuntimeConfig(["--host", "0.0.0.0", "--port", "4001"], { HOST: "127.0.0.1", PORT: "3001" })).toEqual({
      host: "0.0.0.0",
      port: 4001,
    });
  });

  test("支持 inline CLI 参数", () => {
    expect(readRuntimeConfig(["--host=localhost", "--port=4002"], {})).toEqual({
      host: "localhost",
      port: 4002,
    });
  });

  test("拒绝无效端口", () => {
    expect(() => readRuntimeConfig(["--port", "invalid"], {})).toThrow("无效端口");
  });
});