Add github actions

- Now the laravel discounts support laravel 5.8 or above

.github/workflows/tests.yml

@@ -0,0 +1,60 @@
+name: tests
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        php: [7.4, 7.3, 7.2]
+        laravel: [8.*, 7.*, 6.*, 5.8.*]
+        dependency-version: [prefer-stable]
+        os: [ubuntu-latest]
+        include:
+          - laravel: 8.*
+            testbench: 6.*
+          - laravel: 7.*
+            testbench: 5.*
+          - laravel: 6.*
+            testbench: 4.*
+          - laravel: 5.8.*
+            testbench: 3.8.*
+
+    name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.dependency-version }} - ${{ matrix.os }}
+
+    services:
+      mysql:
+        image: mysql:5.7
+        env:
+          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_DATABASE: laravel-discounts
+        ports:
+          - 3306
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v1
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache/files
+          key: dependencies-laravel-${{ matrix.laravel }}-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, mysql, mysqli, pdo_mysql, bcmath, soap, intl, gd, exif, iconv, imagick
+          coverage: none
+
+      - name: Install dependencies
+        run: |
+          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
+          composer update --${{ matrix.dependency-version }} --prefer-dist --no-interaction --no-suggest
+
+      - name: Execute tests
+        run: vendor/bin/phpunit
+        env:
+          DB_PORT: ${{ job.services.mysql.ports[3306] }}

README.md

@@ -27,6 +27,8 @@ $item = Item::find(1);
 $item->createDiscount(100);
 
 ```
+## Requirements
+The Laravel Discounts package requires PHP >= 7.2 and Laravel >= 5.8.
 
 ## Installation
 

composer.json

@@ -10,13 +10,13 @@
         }
     ],
     "require": {
-        "php": "^7.1",
-        "illuminate/database": "~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0|^8.0",
-        "illuminate/support": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0|^8.0"
+        "php": "^7.2",
+        "illuminate/database": "~5.8.0|^6.0|^7.0|^8.0",
+        "illuminate/support": "~5.8.0|^6.0|^7.0|^8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.0|^8.0|^9.0",
-        "orchestra/testbench": "~3.6.0|~3.7.0|~3.8.0|^4.0|^5.0|^6.0"
+        "orchestra/testbench": "~3.8.0|^4.0|^5.0|^6.0"
     },
     "autoload": {
         "psr-4": {