You built your app with Cursor, Copilot, or ChatGPT. It works. Users are signing up. But there are zero tests, and every time you touch the code, you hold your breath and hope nothing breaks.
Refactoring feels like defusing a bomb. Adding features means crossing your fingers. You shipped fast, but now you are stuck: too scared to change the thing you built.
Your app works. It is live, people use it, and the core features do what they are supposed to do. But under the hood, there is not a single test. No unit tests, no integration tests, no safety net of any kind.
Every change is a gamble. You fix a bug in the payment flow and something breaks in the auth logic. You add a new API endpoint and an existing one starts returning the wrong data. Without tests, you have no way to know what your changes actually affected until a user reports the problem.
The longer you wait, the worse it gets. The codebase grows, the risk compounds, and the cost of adding tests later keeps climbing.
This is the part nobody talks about. You prompted the AI, it wrote the code, and you shipped it. But you did not write every line yourself. There are files in your project that you have never read closely. There are patterns and abstractions that the AI chose, not you.
Writing tests requires understanding internals. You need to know what to mock, what the edge cases are, and how the pieces connect. When you did not write the code, that knowledge is not in your head. You would have to reverse engineer your own project just to figure out what to test.
That is a brutal starting point. And for most vibe coders, it is where the testing effort dies before it begins.
You could sit down and write tests yourself, file by file. Open a source file, figure out what it does, set up the mocks, write the assertions, run it, debug it, repeat. For code you wrote yourself, this is tedious. For code an AI wrote, it is brutal.
Most developers who try this route give up after a few files. The effort-to-reward ratio is terrible. You spend an hour writing tests for one service file, and you still have 40 more to go. Meanwhile, features are not getting built, bugs are not getting fixed, and the actual product is not moving forward.
Testing should not be a second full-time job. Especially when the code already exists and already works.
You do not need to understand every file. You do not need to set up mocking patterns or testing infrastructure. ShipTested handles the analysis, generation, execution, and debugging loop so you can get back to building.
Get test coverage for the app you built with AI. Free tier available, no credit card required.