Скачать с ютуб Optimizing Cypress Recursive Functions: Avoiding Slow Test Execution в хорошем качестве

Optimizing Cypress Recursive Functions: Avoiding Slow Test Execution

Learn how to enhance the efficiency of your Cypress tests by addressing issues with recursive functions, ensuring faster runtime and better performance. --- This video is based on the question https://stackoverflow.com/q/74695637/ asked by the user 'Rakesh Loi' ( https://stackoverflow.com/u/10646113/ ) and on the answer https://stackoverflow.com/a/74696581/ provided by the user 'Paolo' ( https://stackoverflow.com/u/16791505/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Issue with a recursive function in Cypress. Tests slowing down over time Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Optimizing Cypress Recursive Functions: Avoiding Slow Test Execution When developing diagnostic applications that interact with users through a series of questions, the use of recursive functions can be tempting. However, as impressive as recursion may seem, it can lead to performance degradation over time, especially if not implemented carefully. In this guide, we will explore a common issue related to recursive functions in Cypress tests and provide a detailed solution to improve test execution efficiency. The Problem: Tests Slowing Down Over Time As your application handles over 100 questions, you may encounter performance issues with your tests. The symptoms include slow execution speeds and possible crashes. The root of the problem may lie in how the recursive function is structured, specifically its impact on the Cypress command queue. Identifying the Cause The main concern with the implementation of recursion in Cypress is that it may not allow the test runner to adequately process each iteration before the next one begins. Without providing breaks or yielding control back to Cypress, the tests can consume excessive memory and become significantly slower. Here's a snippet of the original recursive solution: [[See Video to Reveal this Text or Code Snippet]] The Solution: Moving to the Cypress Command Queue To address the slowness caused by the recursive calls, we can ensure that Cypress processes the commands in an orderly manner. The solution involves queuing the recursive call on the Cypress command chain, allowing it to finish its current task before starting the next iteration. Updated Implementation Here is the revised version of the recursive function that should improve performance: [[See Video to Reveal this Text or Code Snippet]] Key Changes Explained Command Chaining: By moving the recursive call inside a .then() block, we provide Cypress the opportunity to complete the current command before executing the next. This addresses memory concerns and prevents the test runner from being overwhelmed. Maintained Logic Flow: The logic flow of the function remains intact. The intro_Questions_Loop() still processes questions and answers dynamically, but now it does so in a way that is more manageable for Cypress. Conclusion: Enhancing Performance With Simple Adjustments By restructuring the recursive implementation and utilizing Cypress's command queue, you can effectively combat performance issues that arise during test execution. Remember that while recursion can be a powerful tool, it’s crucial to implement it in a way that complements the environment you are working in, especially when dealing with frameworks like Cypress. Now that you understand how to optimize recursive functions in Cypress, you can continue building robust diagnostic applications without the worry of lagging tests. Happy coding!