Vanilla server tests, client offline mode (#49)

* vanilla server launcher

* update package.json

* re-add babel to fix standard

* fix ci

* add buffer-equal

* simple fixes

* add offline client support

* fix closing bugs, proper wait for server start

* add test to mocha

* change test timeout to 2 min

* increase timeouts

Co-authored-by: Romain Beaumont <romain.rom1@gmail.com>

test/vanilla.js

@@ -0,0 +1,62 @@
+// process.env.DEBUG = 'minecraft-protocol raknet'
+const vanillaServer = require('../tools/startVanillaServer')
+const { Client } = require('../src/client')
+const { waitFor } = require('../src/datatypes/util')
+
+async function test () {
+  // Start the server, wait for it to accept clients, throws on timeout
+  const handle = await vanillaServer.startServerAndWait('1.16.201', 1000 * 120)
+  console.log('Started server')
+
+  const client = new Client({
+    hostname: '127.0.0.1',
+    port: 19130,
+    username: 'Notch',
+    offline: true
+  })
+
+  console.log('Started client')
+
+  let loop
+
+  await waitFor((res) => {
+    client.once('resource_packs_info', (packet) => {
+      client.write('resource_pack_client_response', {
+        response_status: 'completed',
+        resourcepackids: []
+      })
+
+      client.once('resource_pack_stack', (stack) => {
+        client.write('resource_pack_client_response', {
+          response_status: 'completed',
+          resourcepackids: []
+        })
+      })
+
+      client.queue('client_cache_status', { enabled: false })
+      client.queue('request_chunk_radius', { chunk_radius: 1 })
+
+      clearInterval(loop)
+      loop = setInterval(() => {
+        client.queue('tick_sync', { request_time: BigInt(Date.now()), response_time: BigInt(Date.now()) })
+      }, 200)
+
+      console.log('Awaiting join')
+
+      client.on('spawn', () => {
+        console.log('✔ Client has spawned')
+        client.close()
+        handle.kill()
+        res()
+      })
+    })
+  }, 1000 * 60, () => {
+    client.close()
+    handle.kill()
+    throw Error('❌ client timed out ')
+  })
+  clearInterval(loop)
+}
+
+if (!module.parent) test()
+module.exports = { clientTest: test }

test/vanilla.test.js

@@ -0,0 +1,10 @@
+/* eslint-env jest */
+
+const { clientTest } = require('./vanilla')
+
+describe('vanilla server test', function () {
+  this.timeout(120 * 1000)
+  it('client spawns', async () => {
+    await clientTest()
+  })
+})