AI Test Generator
Generate complete, immediately runnable test suites — including security attack vectors, boundary conditions, and error paths. Powered by DeepSeek AI.
Security mode active — tests will include SQL injection, XSS, path traversal, prototype pollution, integer overflow, ReDoS, and null-byte injection vectors.
Generated tests will appear here
Ready to run immediately — no edits needed
Your code is private
Sent securely to DeepSeek, never stored, never used for training.
Real assertions guaranteed
The prompt prohibits placeholder tests — every assertion verifies real behaviour.
Frequently Asked Questions
Are the generated tests actually runnable?▼
Yes. The AI is explicitly instructed to generate a complete test file with all imports, proper framework syntax, and real assertions derived from the code logic. You can copy the file and run it immediately with your test runner.
What makes the security tests different?▼
When security mode is on, the AI generates tests using real attack vectors: SQL injection strings, XSS payloads, path traversal sequences, prototype pollution objects, ReDoS patterns, integer overflow values, null bytes, and Unicode edge cases. These go far beyond simple null checks.
What is the difference between Standard and Thorough depth?▼
Standard generates 20–40 high-value tests covering the key paths. Thorough generates 40–80 tests, stress-testing every branch and boundary condition. Thorough mode takes longer but produces near-complete coverage.
Does it mock external dependencies?▼
Yes. The AI is instructed to mock all external I/O — database calls, HTTP requests, file system access, randomness, and system clocks — using the chosen framework's native mocking API (vi.fn() for Vitest, jest.fn() for Jest, unittest.mock for Python, etc.).
Which frameworks are supported?▼
Vitest, Jest, Mocha (JavaScript/TypeScript); pytest, unittest (Python); Go testing, Rust built-in; JUnit 5, TestNG (Java/Kotlin); xUnit, NUnit, MSTest (C#); PHPUnit, RSpec, Minitest, XCTest, Google Test, Catch2.
Is my code stored?▼
No. Your code is sent to DeepSeek's API for processing and is immediately discarded. We never store your code on our servers and it is not used to train AI models.