Adds Github workflow file for running automated tests against various…

… PHP/Laravel versions

.github/workflows/tests.yml

@@ -0,0 +1,49 @@
+name: tests
+
+on: [ push, pull_request ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        php: [ 8.2, 8.1, 8.0 ]
+        laravel: [ ^9.0, ^10.0 ]
+        stability: [ prefer-lowest, prefer-stable ]
+        include:
+          - laravel: ^9.0
+            testbench: ^7.19
+          - laravel: ^10.0
+            testbench: ^8.0
+        exclude:
+          # Laravel 10 requires PHP 8.1 at least
+          - laravel: ^10.0
+            php: 8.0
+
+    name: PHP ${{ matrix.php }} - Laravel ${{ matrix.laravel }} - ${{ matrix.stability }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.composer/cache/files
+          key: dependencies-php-${{ matrix.php }}-laravel-${{ matrix.laravel }}-composer-${{ hashFiles('composer.lock') }}
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: gd
+          coverage: none
+
+      - name: Install dependencies
+        run: |
+          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
+          composer update --${{ matrix.stability }} --prefer-dist --no-interaction
+
+      - name: Execute tests
+        run: vendor/bin/phpunit