test case fix for ubuntu

Author: ZaidRehman

src/helper/download.ts

@@ -1,17 +1,24 @@
 import fs from 'fs-extra';
 import { uninterceptedApiClient } from '../lib/api/ApiClient';
-export async function downloadFile(url: string, filePath: string) {
+
+export async function downloadFile(url: string, filePath: string): Promise<void> {
+    // Ensure the file exists before attempting to write to it
     fs.ensureFileSync(filePath);
+
+    // Create a writable stream to save the downloaded file
     const writer = fs.createWriteStream(filePath);
 
+    // Fetch the file as a stream
     const response = await uninterceptedApiClient.get(url, {
         responseType: 'stream',
     });
 
+    // Pipe the data stream to the file writer
     response.data.pipe(writer);
 
+    // Return a promise that resolves when the download is finished or rejects if an error occurs
     return new Promise((resolve, reject) => {
-        writer.on('finish', resolve);
-        writer.on('error', reject);
+        writer.on('finish', () => resolve()); // Ensure resolve is called without any arguments
+        writer.on('error', error => reject(error)); // Directly pass the error to the reject function
     });
 }