WebMock allows stubbing HTTP requests and setting expectations on HTTP requests.

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.

Real stubs and spies for HTTP(S) services

FakerMaker is a simple factory builder so you can throw away your fixtures and generate test data instead.

FakeWeb is a helper for faking web requests in Ruby. It works at a global level, without modifying code or writing extensive stubs.

Record network responses for easy stubbing of external calls

Stub HTTP responses

A webmock DSL using sinatra.

Ruby gem for using jquery mockjax within rspec examples

Replaces Net::HTTP with a subclass that routes all requests to a Rack application

API for Testing Rack Applications via Mock HTTP

The jQuery Mockjax Plugin provides a simple and extremely flexible interface for mocking or simulating ajax requests and responses