Generate Unit Tests
Paste a Function. Get Tests.
Send code to @vustbot, name your framework, and get happy-path, edge-case and error tests to review and run. A coding chat — free tier, no card.
See the difference
Send code to @vustbot, name your framework, and get happy-path, edge-case and error tests to review and run.
Who generates tests with AI
- Devs
- Get a test scaffold for a function fast
- Paste the function, get cases (happy path, edges, errors) to adapt.
- Learners
- See how to test a piece of code
- Example tests in your framework, explained.
- Refactorers
- Add a safety net before changing code
- Tests that capture current behavior so refactors stay safe.
How test generation works here
- 01
Paste the function
Open @vustbot, paste the code, and name your framework (Jest, pytest, JUnit…).
- 02
Get test cases
Happy path, edge cases, and error paths as runnable tests in your framework.
- 03
Refine coverage
Ask for more edge cases, mocks, or a different style — in the same chat.
Generate unit tests free
Open @vustbot, paste a function, name your framework, and get test cases — free tier, no card.
Test generation, honestly
A scaffold, not a guarantee
@vustbot writes plausible tests from the code you paste — review them and run them. It doesn't execute your suite or measure real coverage.
Name your framework
Say which test framework and style you use so the output drops in cleanly.
Free tier, no card
Start free; pay with Telegram Stars only for heavier use. No card subscription.
Frequently asked questions
How does AI test generation work here?
Open @vustbot, paste the function and name your framework (Jest, pytest, JUnit, etc.), and the bot writes runnable tests — happy path, edge cases and error paths — to review and run.
Are the tests guaranteed correct?
No — they are a scaffold written from the code you paste. Review them and run them; the bot does not execute your suite or measure real coverage.
Which frameworks does it support?
Most common ones — Jest, Vitest, pytest, unittest, JUnit, Go testing, RSpec and more. Name yours so the output drops in cleanly.
Can it add more edge cases?
Yes — ask for more edges, mocks, or a different style in the same chat.
Will it mock external dependencies?
Yes — ask and it adds mocks or stubs for network, DB and filesystem calls in your framework’s style. Tell it what to mock so the tests stay isolated.
Ready when you are
Generate unit tests in Telegram.
Paste a function and @vustbot writes happy-path, edge and error tests in your framework — review and run them. A coding chat, free to start, pay with Telegram Stars.