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std/examples/chat/server_test.ts

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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals } from "../../testing/asserts.ts";import { dirname, fromFileUrl, resolve } from "../../path/mod.ts";
const moduleDir = resolve(dirname(fromFileUrl(import.meta.url)));
async function startServer(): Promise<Deno.ChildProcess> { const server = new Deno.Command(Deno.execPath(), { args: [ "run", "--quiet", "--allow-net", "--allow-read", "server.ts", ], cwd: moduleDir, stdout: "piped", stderr: "null", stdin: "null", }); const child = server.spawn(); const reader = child.stdout.getReader();
try { const { value } = await reader.read(); assert( value && new TextDecoder().decode(value).includes("chat server starting"), ); } catch { await child.stdout.cancel(); } finally { reader.releaseLock(); }
return child;}
Deno.test({ name: "[examples/chat] GET / should serve html", async fn() { const child = 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 { child.stdout.cancel(); child.kill(); } await child.status; },});
Deno.test({ name: "[examples/chat] GET /ws should upgrade conn to ws", async fn() { const child = 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 { child.stdout.cancel(); child.kill(); } await child.status; },});