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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals } from "../../testing/asserts.ts";import { TextProtoReader } from "../../textproto/mod.ts";import { BufReader } from "../../io/buffer.ts";import { delay } from "../../async/delay.ts";import { dirname, fromFileUrl, resolve } from "../../path/mod.ts";
const moduleDir = resolve(dirname(fromFileUrl(import.meta.url)));
async function startServer(): Promise<  Deno.Process<Deno.RunOptions & { stdout: "piped" }>> {  const server = Deno.run({    cmd: [      Deno.execPath(),      "run",      "--quiet",      "--allow-net",      "--allow-read",      "server.ts",    ],    cwd: moduleDir,    stdout: "piped",  });  try {    assert(server.stdout != null);    const r = new TextProtoReader(new BufReader(server.stdout));    const s = await r.readLine();    assert(s !== null && s.includes("chat server starting"));  } catch {    server.stdout.close();    server.close();  }
  return server;}
Deno.test({  name: "[examples/chat] GET / should serve html",  async fn() {    const server = await startServer();    try {      const resp = await fetch("http://127.0.0.1:8080/");      assertEquals(resp.status, 200);      assertEquals(resp.headers.get("content-type"), "text/html");      const html = await resp.text();      assert(html.includes("ws chat example"), "body is ok");    } finally {      server.close();      server.stdout.close();    }    await delay(10);  },});
Deno.test({  name: "[examples/chat] GET /ws should upgrade conn to ws",  async fn() {    const server = await startServer();    let ws: WebSocket;    try {      ws = new WebSocket("ws://127.0.0.1:8080/ws");      await new Promise<void>((resolve) => {        ws.onmessage = (message) => {          assertEquals(message.data, "Connected: [1]");
          ws.onmessage = (message) => {            assertEquals(message.data, "[1]: Hello");            ws.close();          };
          ws.send("Hello");        };
        ws.onclose = () => {          resolve();        };      });    } catch (err) {      console.log(err);    } finally {      server.close();      server.stdout.close();    }  },});