Put each association into it's own behavior module. This makes testing and organizing your Rails app a lot easier when it gets big.

Easy, flexible A/B testing and feature toggle for Rails

Testing Description

Generative testing for Minitest.

A performance testing tool

Does nothing. Useful for testing.

Generate values for testing.

A gem for generating fake values for testing or development.

Just a test.

Dummy testing pattern helper gem.

This is a nice gem for testing gem.

a window sandbox for jQuery application testing with jSpec

Eases web-request routing, handling, and response as a half-way front, half-way page controller. Implemented with specific emphasis on enabling easy unit/integration testing that doesn't require a browser.

Kill hadoop daemons for debugging, testing, and development.

Duple simplifies moving and processing data snapshots between development, testing and production environements.

gem for testing out ideas quickly

Extract a subset of a relational database for use in development or testing. Provides a simple API to filter rows and preserve referential integrity.

A framework for doing cross app testing with support for distributed factories, test parallelism, and verification of async events.

DTest is a testing tool to describe integrating test for distributed systems.

Generates data to insert into database tables, allowing columns to be defaulted or overriden. Intended to be used when testing wide tables where many not null columns may need to be populated but are not part of the test