Install bundler 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 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 is used for end-to-end full stack integration tests that also function as VCR's documentation.