Added a `_different` test in addition to the `_same` test. #519

	# This workflow will test this Node.js package.
	# For more information see: https://docs.github.com/en/actions/guides/building-and-testing-nodejs

	name: Build and Test

	# Execute on every push, pull request and if activated manually.
	on: [push, pull_request, workflow_dispatch]

	# The caching settings were based on https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows#example-using-the-cache-action
	jobs:
	build:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	node-version: [18.x, 20.x]

	steps:
	- uses: actions/checkout@v3

	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@v3
	with:
	node-version: ${{ matrix.node-version }}

	- name: Clean install dependencies from package-lock.json.
	run: npm ci

	- name: Build with NPM
	run: npm run build --if-present

	- name: Test with NPM
	run: npm test

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