Implementation:Nightwatchjs Nightwatch Cucumber Package Install

Knowledge Sources	Nightwatch Cucumber.js Installation
Domains	Testing, BDD, Dependency_Management
Last Updated	2026-02-12 00:00 GMT

Overview

External npm package installation for adding Cucumber.js BDD support to a Nightwatch.js project.

Description

The @cucumber/cucumber package (version 7.3+) is installed as a dev dependency alongside Nightwatch. It provides the Given, When, Then, Before, and After step definition registration functions. The package is external to the Nightwatch repository and must be installed separately.

Usage

Run the npm install command once when setting up Cucumber integration.

Code Reference

Source Location

• Repository: nightwatch
• File: examples/cucumber-js/README.md (lines 6-9)

Signature

npm i @cucumber/cucumber --save-dev

Import

// After installation, import in step definition files:
const { Given, When, Then, Before, After } = require('@cucumber/cucumber');

I/O Contract

Inputs

Name	Type	Required	Description
Existing Nightwatch project	Directory	Yes	Project with nightwatch already installed

Outputs

Name	Type	Description
@cucumber/cucumber	npm package	Available in node_modules
Given, When, Then	Functions	Step definition registration functions importable
Before, After	Functions	Hook registration functions importable

Usage Examples

Install Cucumber

# Install Cucumber.js (version 7.3 or higher required)
npm i @cucumber/cucumber --save-dev

# Verify installation
npx cucumber-js --version

Related Pages

Implements Principle

• Principle:Nightwatchjs_Nightwatch_Cucumber_Dependency_Setup