Improve TestCafe form submission timeout handling with polling mechanism

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

Author: Copilot

lib/utils.js

@@ -192,9 +192,21 @@ 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 ? 10 * 1000 : 1 * 1000 // 10 seconds in CI, 1 second otherwise
-        const waitTill = new Date(new Date().getTime() + waitTime)
-        while (waitTill > new Date()) {}
+        const waitTime = process.env.CI ? 15 * 1000 : 1 * 1000 // 15 seconds in CI, 1 second otherwise
+        const pollInterval = 100 // Check every 100ms
+        const startTime = new Date().getTime()
+
+        // Poll for file existence instead of busy waiting
+        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
+          }
+        }
       }
       if (!fs.existsSync(dataFile)) {
         throw new Error('Data file was not created in time')