diff --git a/test/freecamera-test.js b/test/freecamera-test.js
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--- /dev/null
+++ b/test/freecamera-test.js
@@ -0,0 +1,56 @@
+// Ensure 'node-canvas-webgl' is installed
+function safeRequire (path) {
+  try {
+    return require(path)
+  } catch (e) {
+    return {}
+  }
+}
+const { spawn } = require('child_process')
+const net = require('net')
+global.THREE = require('three')
+global.Worker = require('worker_threads').Worker
+const { createCanvas } = safeRequire('node-canvas-webgl/lib')
+
+const fs = require('fs'); // add by yxhxianyu
+
+const { WorldView, Viewer, getBufferFromStream } = require('../viewer')
+
+const mineflayer = require('mineflayer')
+
+// Import the module from headless.js in the lib directory
+const freecamera = require('../lib/freecamera-base64')
+const { Vec3 } = require('vec3')
+
+// Setup a mineflayer bot
+const bot = mineflayer.createBot({
+    username: 'MineflayerBotT',
+    host: 'localhost',
+    port: 25565,
+    version: '1.19',
+})
+
+let freecameras = {}
+
+bot.once('spawn', () => {
+    try {
+        freecameras['1'] = freecamera(bot, { width: 256, height: 144 })
+        freecameras['1'].set({ pos: new Vec3(-12, 110, 83), yaw: 3.14, pitch: 0})
+    } catch (error) {
+        console.error('Error during test:', error)
+    }
+
+    setInterval(() => {
+        base64Image = freecameras['1'].get()
+        if (base64Image === undefined) return
+        saveBase64AsImage(base64Image, 'output' + '.jpg');
+    }, 250)
+})
+
+function saveBase64AsImage(base64String, filename) {
+    const base64Image = base64String.split(';base64,').pop();
+    const imageBuffer = Buffer.from(base64Image, 'base64');
+    fs.writeFile(filename, imageBuffer, {encoding: 'base64'}, function(err) {
+        if (err) { console.error(err); } else { console.log('Successfully saved image.'); }
+    });
+}
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