Merge pull request #74 from art-cg/feature/github-actions

test: add github actions

.github/workflows/code_checks.yaml

@@ -0,0 +1,37 @@
+# .github/workflows/code_checks.yaml
+name: Code_Checks
+
+on: ["push", "pull_request"]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php: ['8.0', '8.1']
+        stability: [ prefer-lowest, prefer-stable ]
+
+    name: PHP ${{ matrix.php }} - ${{ matrix.stability }} tests
+    steps:
+      # basically git clone
+      - uses: actions/checkout@v2
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache/files
+          key: dependencies-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}
+
+      # use PHP of specific version
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: pcov, dom, curl, libxml, mbstring
+          coverage: pcov
+
+      - name: Install dependencies
+        run: composer update --${{ matrix.stability }} --prefer-dist --no-interaction
+
+      - name: Execute tests
+        run: vendor/bin/phpunit --verbose