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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import * as net from "./net.ts";import { assertEquals } from "../testing/asserts.ts";import { deferred } from "../async/deferred.ts";import * as http from "./http.ts";
Deno.test("[node/net] close event emits after error event", async () => {  const socket = net.createConnection(27009, "doesnotexist");  const events: ("error" | "close")[] = [];  const errorEmitted = deferred();  const closeEmitted = deferred();  socket.once("error", () => {    events.push("error");    errorEmitted.resolve();  });  socket.once("close", () => {    events.push("close");    closeEmitted.resolve();  });  await Promise.all([errorEmitted, closeEmitted]);
  // `error` happens before `close`  assertEquals(events, ["error", "close"]);});
Deno.test("[node/net] the port is available immediately after close callback", async () => {  const p = deferred();
  // This simulates what get-port@5.1.1 does.  const getAvailablePort = (port: number) =>    new Promise((resolve, reject) => {      const server = net.createServer();      server.on("error", reject);      server.listen({ port }, () => {        // deno-lint-ignore no-explicit-any        const { port } = server.address() as any;        server.close(() => {          resolve(port);        });      });    });
  const port = await getAvailablePort(5555);
  const httpServer = http.createServer();  httpServer.on("error", (e) => p.reject(e));  httpServer.listen(port, () => {    httpServer.close(() => p.resolve());  });  await p;});