pat-ai-tests 🐥

Pedro Arantes Tests — AI-powered test generator for TypeScript

Generate, fix, and manage Jest unit tests automatically using Azure OpenAI or Ollama (local).

Install

npm install -g pat-ai-tests

Setup

# Azure OpenAI (cloud)
pat setup-api-key

# Ollama (local, free)
pat setup-ollama

Commands

Command	Description
pat generate	Generate tests for all files in ./src
pat coverage	Show which files are missing tests
pat suggest	Suggest test cases without writing files
pat report	Generate an HTML coverage report
pat watch	Auto-generate tests on file save
pat fix	Auto-fix failing tests
pat use azure	Switch to Azure OpenAI
pat use ollama	Switch to local Ollama
pat show-config	Show current configuration

Usage

# Generate tests for all files
pat generate

# Generate for a specific file
pat generate src/auth.service.ts

# Generate for a specific folder
pat generate --dir src/services

# Preview without writing
pat generate --dry-run

# Fix failing tests
pat fix
pat fix --retries 3

# Watch mode — auto-generates on save
pat watch

Framework support

pat automatically detects your framework and uses the right test patterns:

• Angular — TestBed, HttpClientTestingModule, ComponentFixture, fakeAsync
• NestJS — Test.createTestingModule, providers, supertest
• React — React Testing Library, hooks
• TypeScript — Jest, ts-jest

Switching providers

# Set up both providers once
pat setup-api-key    # Azure OpenAI
pat setup-ollama     # Ollama local

# Switch instantly between them
pat use azure
pat use ollama

# Check which is active
pat show-config

Coverage report

pat report

Generates a dark-mode HTML report showing which files have tests, file types (Component, Service, Pipe), and overall coverage percentage. Opens automatically in your browser.

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Made with 🐥 by Pedro Arantes