add github actions

Author: thekonz

.editorconfig

@@ -13,3 +13,6 @@ trim_trailing_whitespace = true
 
 [*.md]
 trim_trailing_whitespace = false
+
+[*.yml]
+indent_size = 2

.github/workflows/test.yml

@@ -0,0 +1,39 @@
+name: Unit Test
+on: [ push ]
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-version: ['7.2', '7.3', '7.4', '8.0', '8.1']
+        laravel-version: ['^6', '^7', '^8', '^9']
+        exclude:
+          - php-version: 7.2
+            laravel-version: ^8
+          - php-version: 7.2
+            laravel-version: ^9
+          - php-version: 7.3
+            laravel-version: ^9
+          - php-version: 7.4
+            laravel-version: ^9
+          - php-version: 8.0
+            laravel-version: ^6
+          - php-version: 8.0
+            laravel-version: ^7
+          - php-version: 8.1
+            laravel-version: ^6
+          - php-version: 8.1
+            laravel-version: ^7
+    steps:
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+      - uses: actions/checkout@v2
+      - name: Install dependencies
+        run: composer install --no-interaction --prefer-dist --no-progress
+      - name: Install laravel
+        run: composer require illuminate/contracts:${{ matrix.laravel-version }} --no-interaction --prefer-dist --no-progress
+      - name: Run unit tests
+        run: vendor/bin/phpunit
+