Artificial intelligence

Why I’ll Never Write Test Scripts By Myself Again (And Neither Should You)

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Why I’ll Never Write Test Scripts By Myself Again (And Neither Should You)

If you’ve spent any time working on automated testing, you can vote:

We start every project with the best of intentions – promising ourselves to write clean, maintainable code
But fast forward a few months, and we spend half our week fixing weak tests, hunting for vulnerabilities, and dealing with “duplicate email” errors in our CI/CD pipelines.

I’ve been there. We’ve all been there.

Recently, the automation community has been buzzing about AI-driven testing:

I read the articles over Microsoft Developer Blog again TestGuild about how AI is taking over QA in 2025 and 2026
To be honest, I was skeptical – most AI testing platforms sound like black boxes
They promised the world, but it ends they are confined to their ecosystemlosing control of your actual codebase

But then I tried Agents for playwrights. This was not a paid wrap tool; this was you come from the Playwright ecosystem I already use it and I like it.

That happened about a month ago. Since then, I’ve been using Playwright Agents every day on a live project:

Writing new suites
Failure to debug
Riding teammates
Observing how agents behave over real competitions with real deadlines

This post is not an original review. That’s what I learned after a full month of relying on these agents for production grade work. Here is my honest experience of how it completely changed the way I look at writing tests.

Challenge: User Management Module

I needed to automate User Management Module ours CII-ESG Diagnostics Platform. If you’ve done one of these automations, you’ve done a hundred: Create, Read, Update, and Delete users.

But doing it right takes time. If I were to write this manually, this is what my week would look like:

Spend an afternoon clicking through an application to write a test plan
Spend a few hours writing Page Object Model (POM) classes.
Spend a few days writing fun methods, form validation, error conditions, and edge cases.

All in all, I will be making a budget 11 hours to 17 hours in this one module.

Instead, I ran npx playwright init-agent to trigger a new one Model Context Protocol (MCP) agents in my editor and I decided to let the AI take the wheel.

Meet My New Couples Editor: Editor

Playwright includes a young agent named Editor. I told you, “Hey, go check out how this User Management module works.” I gave it a simple seed test so it could fit in, and then I just watched.

It wasn’t just a joke. Here’s what the Editor does:

You have systematically tested the application and produced a a human-readable Markdown test program
It didn’t just write “create a user” the fun way — it was pointed 90+ unique test cases on the other side 8 suites
A systematic examination of role-based permissionswhat happens when I enter an existing email, and how the UI handles very long entries
Mapped edge cases in minutes that would have taken me hours to write properly

Coding: Generator

Having a text file full of test programs is nice, but I needed code. Enter the A generator agent.

I gave it a test run, and it started writing TypeScript. My biggest fear was that it would write garbage, unmaintainable code — like hard-coding delays (page.waitForTimeout(5000)) or using bad CSS finders (#div-child-3 > span).

I was wrong. The generated code was exactly how an experienced QA engineer would write:

Create Page Object Models: It separated the finders from the test method, giving me clean CreateUserPage.ts and UserManagementPage.ts files
It was about accessibility: Commonly used places like page.getByRole(‘button’, { name: ‘Submit’ }) instead of relying on broken class names
It means dynamic data: To avoid those annoying “User already exists” errors when the test runs twice, it is automatically generated dynamic emails based on timestamp (const uniqueEmail = test.user.${Date.now()}@example.com)

It overwrote 1,500 lines of functional test code in those 90+ cases.

The results are inclusive

So, what were the final figures?

Which usually takes me approx two days of hard work heads down was completed approx 1.5 hours. That is a 90% reduction in development time
When I ran the suite, I found the 100% pass rate. – no false positives, no flakiness

And here’s the most important thing: those numbers stayed the whole month.

Now I’ve pushed multiple modules to this same workflow – User Management, Project Creation, Role Permissions
I time savings and pass rates have been remarkably consistent
This is not a cherry-picked demo effect; it is a a pattern I saw myself repeating sprint after sprint

Maintenance Lifesaver: Healer

We all know that the worst part of automation is not writing the tests – of course self preservation:

The developer renames the button class, or changes the ID
Soon all of you The CI pipe is painted red

This is where the third agent really surprised me: the He is a therapist.

Instead of me spending an hour sifting through the viewers, the Healer just jumps in:

If the test fails, it helps automatically replays failed steps
Tests the current live UI to find out where the elements have moved
Finds what has changed and literally suggests a patch – like an updated finder, data correction, or fixed wait
Reruns the test until it passes

Last month, the Healer did just that saved me more time than any other agent:

Our front end team posts UI changes regularly
There was at least twelve times when my CI pipeline turns red after a developer renames a part or rearranges a form
Each time, the Healer he caught it, and proposed to fix itand I just updated the diff
What used to be the dreaded Monday morning “plumbing” routine is more of a tradition he quietly disappeared from my calendar

It sounds like you have a small QA engineer to automatically test your broken tests, so you should review their suggested code sheets in the morning.

The Big Picture – And What Comes Next

I was reading the article DEV community recently when developers tested Playwright’s new agents against expensive, independent AI testing platforms. Their take is very similar to my experience: Ownership is important.

With Playwright Agents, I still own my code:

I have standard TypeScript .spec.ts files that live in mine GitHub repo
I can use them in CI/CD with Jenkins or GitHub Actions like any other Playwright test
I don’t pay a monthly subscription to the magic forum
I’m just like that to increase my normal work flow with great wisdom

After a full month of daily use, I can confidently say: this is not hype.

I Planer, Generator, and Healer it has truly changed the way I work. I went from spending most of my week writing and storage test code to use my time review test code – which, frankly, is the best use of a QA engineer’s brain
Mine the test grew rapidly than any project. I the maintenance burden is reduced almost nothing

Are QA engineers out of a job? Not at all.

Our function does not output page.locator().click()
Our work to ensure quality
Playwright’s agents just handled the boring typing, and gave me my own time back so I can focus on hard, strategic testing problems