Adding Vitest to your GPT Engineer app? Let us review it.
Expert review for Vitest integrations built with GPT Engineer. We fix GPT Engineer-generated Vitest code for security, error handling & production readiness. From $19.
Common GPT Engineer issues affecting integrations
No authentication system
GPT Engineer generates functional UIs but typically skips authentication entirely. All routes and data are publicly accessible.
Direct database access from client
Some generated apps query databases directly from the frontend without an API layer, exposing database credentials and structure.
Incomplete feature implementations
Features that look complete in the UI but don't actually work end-to-end. Buttons that don't submit, forms that don't save, and links that go nowhere.
Vitest issues we find in GPT Engineer apps
Mocking modules incorrectly with vi.mock()
AI-generated tests use vi.mock() with incorrect factory functions, missing auto-mock setup, or mock implementations that don't match the module's actual interface.
Only testing the happy path
Generated tests verify that functions work with valid input but skip error cases, edge cases, boundary values, and empty or null inputs.
Test isolation broken by shared mutable state
AI tools set up mock state in beforeAll instead of beforeEach, or modify shared variables across tests without resetting them, causing order-dependent test failures.
Start with a self-serve audit
Get a professional review of your Vitest integration at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you review my GPT Engineer-built Vitest integration?
Yes. We regularly audit Vitest integrations in GPT Engineer-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Vitest issues does GPT Engineer typically create?
Common issues in GPT Engineer-generated Vitest code include: mocking modules incorrectly with vi.mock(), only testing the happy path, test isolation broken by shared mutable state. We fix all of these in our code review.
How much does it cost to fix my Vitest integration?
Start with our code audit ($19) to get a complete list of Vitest issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What Vitest best practices does GPT Engineer typically miss?
AI tools often skip webhook signature verification, proper error handling for API failures, retry logic with exponential backoff, and secure token storage for Vitest. Our review checks all of these and provides specific fixes.
Related resources
More GPT Engineer Integrations
Need help with Vitest in your GPT Engineer app?
Tell us about your integration. We'll respond within 24 hours with a clear plan and fixed quote.