Add github workflows for PRS #3

	name: Run Tests

	on: [pull_request]

	jobs:
	backend-test:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Set up JDK 21
	uses: actions/setup-java@v2
	with:
	java-version: '21'
	distribution: 'adopt'

	- name: Cache Gradle packages
	uses: actions/cache@v2
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle') }}
	restore-keys: ${{ runner.os }}-gradle

	- name: Run backend tests
	run: cd backend && ./gradlew test

	frontend-test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Use Node.js
	uses: actions/setup-node@v2
	with:
	node-version: '14'

	- name: Cache Node.js modules
	uses: actions/cache@v2
	with:
	path: ~/.npm
	key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
	restore-keys: ${{ runner.os }}-node

	- name: Install Dependencies
	run: cd frontend && npm install

	# TODO add testing for frontend
	# - name: Run tests
	# run: cd frontend && npm test
	backend-build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Build backend Docker container
	working-directory: backend
	run: \|
	docker build -t backend .

	frontend-build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Build frontend Docker container
	working-directory: frontend
	run: \|
	docker build -t frontend .

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