Cucumber
Cucumber supports BDD, and enables using features and scenarios written in a human-readable language.
Cucumber becomes available in RubyMine, provided that cucumber gem (for Ruby projects), or cucumber and cucumber-rails (for Rails applications) are installed and activated.
Cucumber support
RubyMine supports:
Cucumber in both plain Ruby projects, and in Rails applications.
Syntax and error highlighting.
Quick fix to create step definitions.
Ability to describe steps in English or any other language specified in the
# language:comment.Run/debug configurations: Cucumber, Cucumber.js.
Ability to run all features in a directory, a feature, or a single step within a feature.
Cucumber files are marked with 
.