Run unit tests using GitHub actions

.github/workflows/tests.yml

@@ -0,0 +1,48 @@
+name: Tests
+
+on:
+  push:
+    paths-ignore:
+      - 'Docs/**'
+  pull_request:
+    paths-ignore:
+      - 'Docs/**'
+
+jobs:
+  tests:
+    strategy:
+      fail-fast: true
+      matrix:
+        php: ["7.1", "7.2", "7.3", "7.4", "8.0", "8.1", "8.2", "8.3"]
+
+    name: "PHP ${{ matrix.php }}"
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.1
+          coverage: none
+
+      - name: Get Composer cache directory
+        id: composer-cache
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - uses: actions/cache@v3
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-composer-
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: PHPUnit
+        run: php bin/phpunit

README.md

@@ -1,6 +1,7 @@
 ![Logo](https://keylighter.kadet.net/img/logo.png)
 
 [![Packagist](https://img.shields.io/packagist/v/kadet/keylighter.svg?style=flat-square)](https://packagist.org/packages/kadet/keylighter)
+[![GitHub Actions](https://github.com/kadet1090/keylighter/actions/workflows/tests.yml/badge.svg?event=push)](https://github.com/kadet1090/KeyLighter/actions)
 [![Try it](https://img.shields.io/badge/www-try%20it-FF9700.svg?style=flat-square)](https://keylighter.kadet.net)
 
 [![stability: stable](https://img.shields.io/badge/Public%20API-stable-green.svg?style=flat-square)](Docs/2-basic-usage.md)