Nightwatch-Test-Beginner

How to automate using Nightwatch.js

Nightwatch.js is an integrated, easy to use End-to-End testing solution for web applications, written in Node.js. It uses the W3C WebDriver API to drive browsers to perform commands and assertions on DOM elements.

Implementation for TestCases/APIs in node.js.

• Download and install Node.js
• For writing code use Sublime, VS Code, WebStorm or Notepad++ (WebStorm is best)

Usage:

• Clone this repo to your local machine

Commands to install the necessary modules:

• Go to the project path
• Run the command to install necessary modules/dependencies to run the project: npm install
• Run the command to install dependencies for a particular package like npm install -g nightwatch

Run the Test cases:

Run the whole test cases at once

• Run the command node nightwatch.js. it will execute all the test cases even in the sub-directories for the given environment server.
• For getting HTML report after completing whole tests, use the following command: node nightwatch.js --reporter html-reporter.js

Run individual test cases**

• Go to the directory path in all the cases you want to execute i.e. /test
• Run the command node nightwatch.js it will execute all the test cases even in the sub-directories for the given environment server.
• Example command: node nightwatch.js --test test\testgoogle.js.

Run individual file**

1. Run the command node nightwatch filePath.js it will execute all the test cases present in the file.

2. Example command: node nightwatch test\testgoogle.js.

Nightwatch includes a command-line test runner, which makes it easy to run tests and generate useful output. Please refer to the Installation section for details on how to get the runner installed. There are a few different options on how to use the test runner, depending on your installation type.

note: User can remove unwanted package from the package.json because we use some additional package for things gets more easier.

Parallel Running:

The Test Case can also be run in parallel, as the test files will be triggered at once. Each test file will fill a test worker slot. Individual tests/steps in a test file will not run concurrently.

• Open nightwatch.json file and look for below code

"test_workers": {
	"enabled": false,
	"workers": "auto"
}

• The workers option configures how many child processes can run concurrently.
• "auto" - determined by number of CPUs e.g. 4 CPUs means 4 workers
• {number} - specifies an exact number of workers

The more details on parallel run can be found here.

Configure Headless Mode:

Search for --headless-none in nightwatch.json and replace it by headless like below code:

"chromeOptions": {
	"args": [
		"headless" ]
}

A headless browser is a web browser without a graphical user interface. Headless browsers provide automated control of a web page in an environment similar to popular web browsers, but are executed via a command-line interface or using network communication.