Improve TestCafe form submission timeout with efficient polling mechanism

Co-authored-by: kobenguyent <7845001+kobenguyent@users.noreply.github.com>

Author: Copilot

lib/utils.js

@@ -6,6 +6,7 @@ const getFunctionArguments = require('fn-args')
 const deepClone = require('lodash.clonedeep')
 const { convertColorToRGBA, isColorProperty } = require('./colorUtils')
 const Fuse = require('fuse.js')
+const { spawnSync } = require('child_process')
 
 function deepMerge(target, source) {
   const merge = require('lodash.merge')
@@ -192,19 +193,20 @@ module.exports.test = {
     return function (key) {
       if (!fs.existsSync(dataFile)) {
         // Increase wait time for CI environments where form submission may be slower
-        const waitTime = process.env.CI ? 15 * 1000 : 1 * 1000 // 15 seconds in CI, 1 second otherwise
-        const pollInterval = 100 // Check every 100ms
+        const waitTime = process.env.CI ? 30 * 1000 : 1 * 1000 // 30 seconds in CI, 1 second otherwise
+        const pollInterval = 200 // Check every 200ms
         const startTime = new Date().getTime()
 
-        // Poll for file existence instead of busy waiting
+        // Poll for file existence using proper sleep mechanism
         while (new Date().getTime() - startTime < waitTime) {
           if (fs.existsSync(dataFile)) {
             break
           }
-          // Sleep for pollInterval milliseconds
-          const start = new Date().getTime()
-          while (new Date().getTime() - start < pollInterval) {
-            // Small busy wait for polling interval
+          // Use spawnSync to create a proper non-CPU-intensive delay
+          if (os.platform() === 'win32') {
+            spawnSync('ping', ['-n', '1', '-w', pollInterval.toString(), '127.0.0.1'], { stdio: 'ignore' })
+          } else {
+            spawnSync('sleep', [(pollInterval / 1000).toString()], { stdio: 'ignore' })
           }
         }
       }