# Contributing ## Contributing Install [bundler](http://gembundler.com/) and use it to install all the development dependencies: ``` gem install bundler bundle install ``` You should be able to run the tests now: ``` bundle exec rake ``` VCR uses [RSpec](http://github.com/rspec/rspec) for unit tests. The specs are written in a very "focused" style, where each spec is concerned only with exercising the object under test, using mocks as necessary. You can run the specs using `rake spec`. [Cucumber](http://cukes.info/) is used for end-to-end full stack integration tests that also function as VCR's documentation. ## Problems running bundle install? If you get an error while running `bundle install`, it may be one of the "extras" gems which are not required for development. Try installing it without these gems. ``` bundle install --without extras ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://nicolasiensen.gitbook.io/vcr-documentation/contributing.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.