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import { expect } from "./deps.ts";/** * Test timeout. */export const TEST_TIMEOUT = 3000;
/** * A no-op _describe_ method. * * @param name * @param fn */export function describe(_name: string, fn: () => void | Promise<void>) {  return fn();}
export type Done = (err?: unknown) => void;
/** * An stub to remove a test. * * @param name * @param fn */export function nit(  _name: string,  _fn: (done: Done) => void | Promise<void>,  _options?: Partial<Deno.TestDefinition>,) {}
/** * An _it_ wrapper around `Deno.test`. * * @param name * @param fn */export function it(  name: string,  fn: (done: Done) => void | Promise<void>,  options?: Partial<Deno.TestDefinition>,) {  Deno.test({    ...options,    name,    fn: async () => {      let testError: unknown;
      let done: Done = (err?: unknown) => {        if (err) {          testError = err;        }      };
      let race: Promise<unknown> = Promise.resolve();      let timeoutId: number;
      if (fn.length === 1) {        let resolve: (value?: unknown) => void;        const donePromise = new Promise((r) => {          resolve = r;        });
        race = Promise.race([          new Promise((_, reject) =>            timeoutId = setTimeout(() => {              clearTimeout(timeoutId);
              reject(                new Error(                  `test "${name}" failed to complete by calling "done" within ${TEST_TIMEOUT}ms.`,                ),              );            }, TEST_TIMEOUT)          ),          donePromise,        ]);
        done = (err?: unknown) => {          clearTimeout(timeoutId);          resolve();
          if (err) {            testError = err;          }        };      }
      await fn(done);      await race;
      if (timeoutId!) {        clearTimeout(timeoutId);      }
      // REF: https://github.com/denoland/deno/blob/987716798fb3bddc9abc7e12c25a043447be5280/ext/timers/01_timers.js#L353      await new Promise((resolve) => setTimeout(resolve, 20));
      if (testError) {        throw testError;      }    },  });}
export const after = (count: number, done: Done) => {  let _count = 0;
  return (err?: unknown) => {    _count++;
    if (err) {      done(err);    } else if (_count >= count) {      done();    }  };};
/** * Returns an object subset of `obj`, whose properties are in `keys`. * * @param obj * @param props */export function pick<  T extends Record<string, unknown>,  K extends keyof T,>(obj: T, keys: K[]): Pick<T, K> {  const output = {} as Pick<T, K>;
  for (const key of keys) {    output[key] = obj[key];  }
  return output;}
/** * Returns an object subset of `obj`, whose properties are not in `keys`. * @param obj * @param keys */export function omit<T extends Record<string, unknown>, K extends keyof T>(  obj: T,  keys: K[],): Omit<T, K> {  const copy = Object.create(Object.getPrototypeOf(obj));  Object.defineProperties(copy, Object.getOwnPropertyDescriptors(obj));
  for (const key of keys) {    delete copy[key];  }
  return copy as Omit<T, K>;}
export const shouldNotHaveHeader = (field: string) => (res: any) => {  expect(res.header[field.toLowerCase()]).toBeFalsy();};
export const shouldHaveBody = (buf: any) => (res: any) => {  const body = res.body || res.text;  expect(body).toBeTruthy();  expect(body.toString("hex")).toEqual(buf.toString("hex"));};
export const shouldNotHaveBody = () => (res: any) => {  expect(res.text === "" || res.text === undefined || res.text === null)    .toBeTruthy();};