Add GitHub Actions configuration

Author: kitar

.github/workflows/php.yml

@@ -0,0 +1,20 @@
+name: PHP Composer
+
+on: [push]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate
+
+    - name: Install dependencies
+      run: composer install --prefer-dist --no-progress --no-suggest
+
+    - name: Run test suite
+      run: composer run-script test

composer.json

@@ -15,6 +15,9 @@
         }
     ],
     "license": "MIT",
+    "scripts": {
+        "test": "vendor/bin/phpunit"
+    },
     "require": {
         "illuminate/support": "^6.0",
         "illuminate/container": "^6.0",