---
title: "Validate AI Code with Auto-Generated Tests | Speedscale"
description: "AI generates code fast. Traffic-based tests prove it works. Auto-generate tests and mocks from real production traffic—no scripting required."
canonical: "https://speedscale.com/features/tests-and-mocks/"
---

## Turn AI Code Changes into Validated Tests

*   AI generates code fast—traffic replay proves it works
    
*   Auto-generate tests from real traffic, not synthetic data
    
*   Catch regressions AI introduces before they reach production
    

![Replay tests and mocks view](https://speedscale.com/images/screenshots/replay-tests-and-mocks.png)

## Why AI-Generated Code Needs Traffic-Based Tests

AI coding tools optimize for syntax correctness, not production reality. They've never seen your actual traffic.

### What AI Has Never Seen

*   Your actual API request patterns and payloads
*   Edge cases users hit daily (emoji, Unicode, legacy formats)
*   How third-party APIs actually respond (including errors)
*   Timing-dependent behaviors under real load

### What Traffic-Based Tests Catch

*   Every scenario your production system handles today
*   Behavioral regressions AI changes introduce
*   Contract violations that break downstream consumers
*   Performance degradation under realistic load

## Automated Test Generation

### Zero Scripting

Generate comprehensive test suites from recorded traffic without writing a single line of test code.

### Real User Scenarios

Tests are based on actual user interactions, capturing edge cases and complex workflows.

### Continuous Updates

Keep tests current by automatically updating them as your APIs evolve.

## Generated Test Types

### Integration Tests

Generate comprehensive integration tests that validate API interactions, data flow, and system behavior across multiple services.

*   API endpoint validation
*   Request/response matching
*   Cross-service workflows

### Digital Twin Mocks for AI Development

Give AI coding tools realistic backend responses without hitting live systems. Mocks are auto-generated from real traffic—no manual stub maintenance.

*   Third-party API mocks (Stripe, Salesforce, Twilio)
*   Database responses (Postgres, MySQL, Redis)
*   AI agents get production context locally via MCP

## How It Works

1

### Capture Traffic

Record live API interactions and user flows

2

### Auto-Generate

Convert recordings into tests and mocks automatically

3

### Parameterize

Intelligently handle dynamic data and variables

4

### Execute

Run tests in CI/CD or use mocks for development

## Ready to validate AI code with real traffic?

Stop hoping AI-generated code works. Prove it with traffic-based tests that catch what static analysis misses.

[Try proxymock Free](https://docs.speedscale.com/proxymock/getting-started/installation/) [Schedule a Demo](https://speedscale.com/company/demo/)