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Add tests and coverage #76

	name: JavaCrypt Test

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	build:
	runs-on: ${{ matrix.os }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	java: [11, 17, 21, 25]

	steps:
	- name: Checkout Repository
	uses: actions/checkout@v7

	- name: Set up JDK
	uses: actions/setup-java@v6.0.1
	with:
	distribution: 'temurin'
	java-version: ${{ matrix.java }}
	cache: 'maven'

	- name: Build and test with Maven
	run: ./mvnw -B verify

	- name: Upload coverage report
	if: matrix.os == 'ubuntu-latest' && matrix.java == 21
	uses: actions/upload-artifact@v4
	with:
	name: jacoco-report
	path: target/site/jacoco

	- name: Start Tool
	run: java -jar target/JavaCrypt.jar

	- name: Generate Keys
	run: java -jar target/JavaCrypt.jar -genkeys priv.key pub.key

	- name: create Test (clear) File
	run: \|
	crypt_file="weather_report.txt"
	if [ ! -e "$crypt_file" ]; then
	echo "Dear readers, today's weather is best described as a blend of unpleasant dampness and ominous clouds." > "$crypt_file"
	else
	exit 1
	fi
	touch encrypt.txt
	touch decrypt.txt

	- name: encrypt file
	run: java -jar target/JavaCrypt.jar -encrypt pub.key weather_report.txt encrypt.txt

	- name: decrypt file
	run: java -jar target/JavaCrypt.jar -decrypt priv.key encrypt.txt decrypt.txt

	- name: compare files
	run: \|
	datei1="decrypt.txt"
	datei2="weather_report.txt"
	cat $datei1
	cat $datei2

	if [ -e "$datei1" ] && [ -e "$datei2" ]; then
	if ! cmp -s "$datei1" "$datei2"; then
	exit 1
	fi
	fi

	- name: Clean Up
	run: \|
	rm -rf *.key
	rm -rf *.txt
	git clean -fX