Resolves issue #23

.github/workflows/build.yml

@@ -0,0 +1,41 @@
+name: build
+
+on: [push, pull_request]
+
+jobs:
+  run:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ['7.2', '7.3', '7.4']
+    name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: mbstring, pdo, pdo_mysql, intl, zip
+          coverage: none
+
+      - name: Check PHP Version
+        run: php -v
+
+      - name: Check Composer Version
+        run: composer -V
+
+      - name: Check PHP Extensions
+        run: php -m
+
+      - 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 check-all