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Troubleshooting
This guide describes how to analyze and resolve some of the common problems that you might encounter while you work with HCL OneTest™ UI.
Troubleshooting in the UI Test perspective
You can find information about the issues or problems that you might encounter while working with HCL OneTest™ UI in the UI Test perspective. Details about issues, their causes and the resolutions that you can apply to fix the issues are described in this section.
Unable to generate tests in a Linux or Mac operating system
When you install HCL OneTest™ UI on a Linux or Mac operating system and create a test, occasionally, the test generation fails with NullPointerException.

Troubleshooting
This guide describes how to analyze and resolve some of the common problems that you might encounter while you work with HCL OneTest™ UI.
- Troubleshooting in the UI Test perspective
  You can find information about the issues or problems that you might encounter while working with HCL OneTest™ UI in the UI Test perspective. Details about issues, their causes and the resolutions that you can apply to fix the issues are described in this section.
  - Unable to play back Web UI tests when certain web applications are redirected to a different URL
    When you record a Web UI test and enter the URL of the web application that you want to test, the application might be redirected to a different URL. When you play back this recorded Web UI test, the playback fails.
  - Unable to open a browser for the Web UI test playback
    When you play back a Web UI test, the test fails occasionally before HCL OneTest™ UI opens a browser.
  - The AUT displays the 403 forbidden error
    When you record or play back a Web UI test, the application under test (AUT) fails to open and displays the 403 forbidden error.
  - Unable to verify content in a Windows test
    When you play back a Windows test with a content verification point, the test fails to verify the text content.
  - Unable to run Web UI tests on a remote agent on Linux
    When you run Web UI tests on a remote agent that runs on Linux, the browser fails to launch.
  - Unable to run Web UI tests on an Android 13 device or emulator
    When you run Web UI tests in Google Chrome versions that are earlier than 110 on an Android 13 device or emulator, the browser fails to open.
  - Playback failure of the submenu actions
    When you playback a Web UI test, the test fails on the submenu actions that are beneath the overlaid control.
  - Unable to generate tests in a Linux or Mac operating system
    When you install HCL OneTest™ UI on a Linux or Mac operating system and create a test, occasionally, the test generation fails with NullPointerException.
  - Unable to record or play back Web UI tests in Edge on Linux
    When you use Microsoft Edge on Linux systems, you cannot record or play back a Web UI test. HCL OneTest™ UI opens Google Chrome instead of Microsoft Edge when you start recording or play back a Web UI test and the test fails.
  - Chrome does not open correctly in the headless mode
    When you run a Web UI test in the headless mode in Google Chrome, the browser does not open correctly in the maximized window, and the screen resolution is not the same as that was used while recording the test.
  - Troubleshooting issues when testing in Internet Explorer
    This topic can help you troubleshoot some of the problems that you might encounter in Web UI testing.
  - Error in launching Chrome on Android devices
    When you play back a Web UI test in the Chrome browser that is installed on an Android device, the playback does not start and the unified report displays an error message.
  - Web UI tests fail in Windows or Linux on Android devices
    When you change the value of the WEBDRIVER_CHROME_DRIVER_MOBILE environment variable in the Windows or Linux operating system, and then run a Web UI test on the Android device, emulator, or simulator connected to the system, the test fails.
  - Web UI tests fail in Mac on Android devices
    When you change the value of the WEBDRIVER_CHROME_DRIVER_MOBILE environment variable in the Mac operating system, and then run a Web UI test on the Android device, emulator, or simulator connected to the system, the test fails.
  - Troubleshooting issues when testing Android applications
    When you perform mobile tests on Android applications, you might face issues. You can find details about issues, their causes, and the resolutions that you can apply to fix the issues.
  - Troubleshooting issues when testing iOS applications
    You can find information about the issues or problems that you might face while you perform mobile tests for iOS applications. Details about issues, their causes, and the resolutions that you can apply to fix the issues are described.
  - Error messages
    This section provides information about error messages that you might encounter with HCL OneTest™ UI. This section lists the error messages by ID, explanation, system action and your response to correct the error message.
  - Frequently asked questions
    This section provides answers to frequently asked questions about the HCL OneTest™ UIWeb UI extension.
- Troubleshooting in the Functional Test perspective
  In this section, you will learn how to troubleshoot the tests in the Functional Test perspective.

Unable to generate tests in a Linux or Mac operating system

When you install HCL OneTest™ UI on a Linux or Mac operating system and create a test, occasionally, the test generation fails with NullPointerException.

Cause

The test generation fails if there is no write permission to the /var/tmp folder before you create any test.

Resolution

You must perform the following steps:

Log in to the computer that runs a Linux or Mac operating system as a sudo user.
Run the following command to apply the write permission to the /var/tmp folder:
sudo chmod -R 777 /var/tmp
Navigate to the /var/tmp folder, and then run the following command to check the permission that is set:
ls -ltr