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Learn how to resolve Angular E2E testing navigation issues when transitioning from the login page to the home page after successful login credentials verification.
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Troubleshooting Angular E2E Testing: Navigating Issues Post-Login

As a newcomer to end-to-end (E2E) testing, encountering navigation issues after a successful login can be frustrating. Specifically, if your test case passes the login phase but fails to navigate to the homepage, you may feel perplexed and unsure how to proceed. In this guide, we’ll break down how to troubleshoot and fix these common issues effectively.

Understanding the Problem

In your E2E test scenario for an Angular application, you aim to verify that a user can log in and subsequently reach the homepage. However, errors in console logs indicate that no element was found using the specified locator for the homepage, resulting in failed tests. Here’s a summary of the key points from your experience:

The test should successfully navigate to the homepage after valid credentials are entered.

The error message in console indicates a failure to locate the specified element (app-homepage h1) rendered on the homepage.

It’s vital to ensure that both login and navigation to the homepage function seamlessly within your tests. Let’s explore how to resolve the issues.

Step-by-Step Solution

Verify Element Existence
Ensure that the element you are trying to locate during your test (i.e., app-homepage h1) is present in the DOM once navigation to the homepage is attempted. If the element is dynamically loaded or has not rendered yet, your test will fail.

Asynchronous Code Handling
When dealing with E2E testing, particularly in Angular, it’s crucial to handle asynchronous operations correctly. You need to ensure that all promises are resolved before performing actions like navigation or assertions. Below is a revised version of your test case that incorporates these changes.

Revised Test Code

Here’s the revised code that should resolve your navigation issues:

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

Key Changes Made

Use of async/await: The Revised tests now use async/await to handle asynchronous queries better. This guarantees that each operation completes before moving on to the next.

Await the Element Text: The updated expectation for the homepage's title now explicitly awaits the call to getPageTitleText() to ensure you’re comparing rendered content.

Conclusion

By following this guide and implementing these adjustments in your E2E test cases, you should successfully navigate from the login page to the homepage upon entry of valid credentials. Remember to always account for the asynchronous nature of web applications, especially when conducting E2E tests with frameworks like Angular.

Happy testing! If you have any questions or further issues, don't hesitate to reach out or leave a comment below.