Build

Add unit tests and minor refactoring #160

	name: Build

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up JDK 11s
	uses: actions/setup-java@v1
	with:
	java-version: 11
	- name: Grant execute permission for gradlew
	run: chmod +x gradlew
	- name: Build with Gradle
	run: ./gradlew clean build
	env:
	GITHUB_TOKEN: ${{ secrets.TOKEN }}
	GITHUB_USERNAME: ${{ secrets.USERNAME }}

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