Writing thorough tests is tedious and consistently deprioritized, leaving coverage gaps that allow regressions to reach production.

Automated Test Writing System

72Building evidence

Build Products

“I want solid test coverage without spending hours writing repetitive tests by hand.”

At a glance

Cost

$20–60 /mo

Time saved

5-8 hours per module

Difficulty

Medium

Steps

2 AI · 3 automation

What you end up with

A passing test suite with improved coverage percentage.

The pipeline · 5 steps

STEP 1

Claude

Analyze the Code for Testability

AI decides

STEP 2

GitHub Copilot

Generate Unit Tests

Automation

STEP 3

Claude

Add Edge Case Tests

AI decides

STEP 4

VS Code

Run Tests and Fix Failures

Automation

The honest readpros and trade-offs, side by side

What works

Dramatically faster test writing

Higher coverage consistently

Fewer regressions in production

The trade-offs

AI-generated tests need review for correctness

Can generate brittle tests without review

Where people go wrong

The failure modes builders hit most often. Avoiding these is most of the battle.

01Testing only the happy path

02Not actually running the tests after generation

03Ignoring coverage report gaps

Why this works

Generate comprehensive tests to improve code coverage and reduce production regressions.

Swap pooldrop-in alternates — tap to open the tool

ChatGPT

Cursor

VS Code

Built for

DeveloperQA EngineerTech LeadEngineering Manager

Industries

TechSaaSEnterpriseFintechHealthcare Tech

Use cases

Test coverage improvementRegression preventionCI/CD quality gates

FAQ

What does the Automated Test Writing System help you do?

Writing thorough tests is tedious and consistently deprioritized, leaving coverage gaps that allow regressions to reach production.

Which AI tools does the Automated Test Writing System use?

It uses Claude, GitHub Copilot, VS Code.

How long until the first result?

Builders typically see a first result in Same day - 1 week.

How it runsamber = the model makes a judgment call

STEP 1

Analyze the Code for Testability · Claude

AI decides

The model generates and decides here — output quality depends on the prompt and context you give Claude.

STEP 2

Generate Unit Tests · GitHub Copilot

Automation

GitHub Copilot executes this mechanically. No judgment call — it runs the same way every time.

STEP 3

Add Edge Case Tests · Claude

AI decides

The model generates and decides here — output quality depends on the prompt and context you give Claude.

STEP 4

Run Tests and Fix Failures · VS Code

Automation

VS Code executes this mechanically. No judgment call — it runs the same way every time.

STEP 5

Check and Report Coverage · GitHub Copilot

Automation

GitHub Copilot executes this mechanically. No judgment call — it runs the same way every time.

Workflows, proven by builders

Automated Test Writing System