Cucumber
Cucumber is a testing framework that supports behavior-driven development and allows you to write features and scenarios in a human-readable language.
Cucumber 
support in IntelliJ IDEA includes the following features:
Syntax and error highlighting
Code completion
Cucumber for other languages
IntelliJ IDEA allows you to work with Cucumber in other languages apart from Java provided that the required plugins are installed and enabled.
Also, make sure that your edition of IntelliJ IDEA supports the language you are interested in. Languages available only in IntelliJ IDEA Ultimate are marked with the Ultimate badge. For more information on IntelliJ IDEA editions, refer to comparison matrix.
Cucumber for Groovy
To use Cucumber with Groovy, the following plugins must be installed and enabled:
Gherkin
Cucumber for Java
Cucumber for Groovy
Cucumber for Kotlin
To use Cucumber with Kotlin, the following plugins must be installed and enabled:
Gherkin
Cucumber for Kotlin
Cucumber for Scala
To use Cucumber with Scala, the following plugins must be installed and enabled:
Scala
Gherkin
Cucumber for Scala
Cucumber for Ruby
To use Cucumber with Ruby, the following plugins and gems must be installed and enabled:
The Ruby plugin
The Gherkin plugin
cucumber gem (for Ruby projects), or cucumber and cucumber-rails (for Rails applications); see Bundler
Cucumber for JavaScript
To use Cucumber with JavaScript, the following plugins and gems must be installed and enabled:
JavaScript and TypeScript
Node.js
Cucumber.js
Gherkin