Ship Faster With Tests You Never Write
No tests to write or maintain, no setup. DebuggAI uses your app as you build and turns real usage into tests that catch bugs before your users do.
Get Real Tests Without Writing Them
DebuggAI uses your app as you build, learning from real usage to write your test suites for you.
1. Run Your App
Run the version on your machine with our lightweight SDK. It works with any framework or language.
2. Automatic Monitoring
Our SDK silently monitors function calls, edge cases, and error states as you interact with your app.
3. AI Test Generation
DebuggAI turns what it saw into test suites tailored to your codebase.
4. Seamless Integration
Tests are automatically added to your project, ready to run in your existing test framework.
Catch the Bugs Manual Tests Miss
DebuggAI doesn't just generate basic tests. It builds test suites that cover edge cases, error handling, and performance scenarios.
Covers the edge cases you'd miss
Tests for edge cases, error handling, and happy paths, built from how your app is really used.
Works with your stack
Works with any testing framework including Jest, Mocha, Pytest, JUnit, and more.
Runs with no setup
Your generated tests run in the setup you already have, automatically. Nothing to wire up.
Coverage keeps up with your code
New tests are added as you build, so your test suite grows right along with your changes.
Bugs stay fixed
Every fixed bug gets its own test, so the same issue never comes back.
Catches slow code
Spots performance bottlenecks and adds tests so your code stays fast.
See the Tests DebuggAI Writes for You
See how DebuggAI writes real tests for different languages and frameworks.
import { expect } from 'chai';
import sinon from 'sinon';
import { AuthService } from '../services/AuthService';
import { UserRepository } from '../repositories/UserRepository';
describe('AuthService', () => {
let authService;
let userRepository;
beforeEach(() => {
userRepository = new UserRepository();
authService = new AuthService(userRepository);
});
describe('login', () => {
it('should return a token when credentials are valid', async () => {
// Arrange
const validCredentials = {
username: 'testuser',
password: 'password123'
};
const mockUser = {
id: 1,
username: 'testuser',
passwordHash: '$2a$10$X7UrY9Hx1PBxVV6X4Ygk2uQ8z8.9QVJ5Z.3XmP9Qf4pX5ZzLa',
roles: ['user']
};
sinon.stub(userRepository, 'findByUsername').resolves(mockUser);
sinon.stub(authService, 'verifyPassword').returns(true);
sinon.stub(authService, 'generateToken').returns('valid-jwt-token');
// Act
const result = await authService.login(validCredentials);
// Assert
expect(result).to.have.property('token', 'valid-jwt-token');
expect(result).to.have.property('user');
expect(result.user).to.have.property('id', 1);
expect(result.user).to.have.property('username', 'testuser');
expect(result.user).to.not.have.property('passwordHash');
});
it('should throw an error when username is not found', async () => {
// Arrange
const invalidCredentials = {
username: 'nonexistentuser',
password: 'password123'
};
sinon.stub(userRepository, 'findByUsername').resolves(null);
// Act & Assert
try {
await authService.login(invalidCredentials);
expect.fail('Expected error was not thrown');
} catch (error) {
expect(error.message).to.equal('Invalid username or password');
expect(error.statusCode).to.equal(401);
}
});
it('should throw an error when password is incorrect', async () => {
// Arrange
const invalidCredentials = {
username: 'testuser',
password: 'wrongpassword'
};
const mockUser = {
id: 1,
username: 'testuser',
passwordHash: '$2a$10$X7UrY9Hx1PBxVV6X4Ygk2uQ8z8.9QVJ5Z.3XmP9Qf4pX5ZzLa',
roles: ['user']
};
sinon.stub(userRepository, 'findByUsername').resolves(mockUser);
sinon.stub(authService, 'verifyPassword').returns(false);
// Act & Assert
try {
await authService.login(invalidCredentials);
expect.fail('Expected error was not thrown');
} catch (error) {
expect(error.message).to.equal('Invalid username or password');
expect(error.statusCode).to.equal(401);
}
});
// Additional tests generated based on observed edge cases
it('should handle null credentials gracefully', async () => {
try {
await authService.login(null);
expect.fail('Expected error was not thrown');
} catch (error) {
expect(error.message).to.equal('Credentials are required');
}
});
});
});What Your Team Gets
Here is what development teams get from tests that write and maintain themselves.
Save Development Time
Reduce time spent writing and maintaining tests by up to 80%, allowing your team to focus on building features.
Increase Code Quality
Thorough test coverage leads to more robust code with fewer bugs and regressions.
Catch Bugs Earlier
Identify and fix issues during development before they reach production or affect users.
Improve Developer Experience
Eliminate the tedious aspects of testing while maintaining high-quality standards.
Learn Best Practices
AI-generated tests follow industry best practices, helping your team learn and improve their testing skills.
Ship With No Setup
Your tests run in the setup you already have, so you ship without configuring anything new.
Frequently Asked Questions
Find answers to common questions about our AI test generation capabilities.
Stop Writing Tests. Start Building Features.
Teams using DebuggAI cut testing time by up to 80% and ship with more confidence. No tests to write or maintain, no setup.
Get started today. No credit card required.