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const { connect, run } = Deno;
import { assert, assertEquals } from "../testing/asserts.ts";import { BufReader } from "../io/bufio.ts";import { TextProtoReader } from "../textproto/mod.ts";
let server: Deno.Process;async function startServer(): Promise<void> {  server = run({    args: [Deno.execPath(), "run", "-A", "http/racing_server.ts"],    stdout: "piped"  });  // Once racing server is ready it will write to its stdout.  assert(server.stdout != null);  const r = new TextProtoReader(new BufReader(server.stdout));  const s = await r.readLine();  assert(s !== Deno.EOF && s.includes("Racing server listening..."));}function killServer(): void {  server.close();  server.stdout?.close();}
const input = `GET / HTTP/1.1
GET / HTTP/1.1
GET / HTTP/1.1
GET / HTTP/1.1
`;const HUGE_BODY_SIZE = 1024 * 1024;const output = `HTTP/1.1 200 OKcontent-length: 8
Hello 1HTTP/1.1 200 OKcontent-length: ${HUGE_BODY_SIZE}
${"a".repeat(HUGE_BODY_SIZE)}HTTP/1.1 200 OKcontent-length: ${HUGE_BODY_SIZE}
${"b".repeat(HUGE_BODY_SIZE)}HTTP/1.1 200 OKcontent-length: 8
World 4`;
Deno.test(async function serverPipelineRace(): Promise<void> {  await startServer();
  const conn = await connect({ port: 4501 });  const r = new TextProtoReader(new BufReader(conn));  await conn.write(new TextEncoder().encode(input));  const outLines = output.split("\n");  // length - 1 to disregard last empty line  for (let i = 0; i < outLines.length - 1; i++) {    const s = await r.readLine();    assertEquals(s, outLines[i]);  }  killServer();});