Troubleshooting the TestNGException: Instantiating Selenium Classes in Java

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Troubleshooting the TestNGException in Java Selenium Tests

Understanding the Problem

The Solution: Steps to Resolve the Issue

To effectively troubleshoot and resolve this error, follow these organized steps.

1. Review Your Class Structure

First, it’s essential to ensure that your classes are set up correctly. The following adjustments should be made to your LoginPage and LoginTests classes to ensure proper instantiation.

LoginPage Class

In your LoginPage class, ensure that you set up a constructor to initialize the WebDriver instance correctly:

[[See Video to Reveal this Text or Code Snippet]]

2. Update the Test Class

Next, make sure that your LoginTests class creates an instance of the LoginPage class properly using the provided WebDriver instance:

[[See Video to Reveal this Text or Code Snippet]]

3. Adjust Test Configuration

4. Test the Updated Code Locally

After making the necessary modifications, run your tests locally to check for functionality. The changes outlined above should help in addressing instantiation issues for your tests.

Key Takeaways

Properly construct your classes with required dependencies.

Ensure that PageFactory is utilized to initialize elements.

Carefully handle browser parameterization and instantiation of dependent classes.

Testing locally after adjustments helps in verifying the correctness of your code.

By following these steps, you should be able to navigate around the TestNGException error effectively, allowing for a smoother test execution process using Selenium and TestNG. Remember that debugging issues like these is part of the coding journey, and with practice, it will become second nature!