test for github code coverage

.github/workflows/phpunit.yml

@@ -0,0 +1,27 @@
+name: PHPUnit Tests
+
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: Run PHPUnit tests with coverage
+        run: vendor/bin/phpunit --coverage-clover=coverage.xml
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          file: ./coverage.xml
+          fail_ci_if_error: true

codecov.yml

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+coverage:
+  status:
+    project:
+      default:
+        target: 80%
+        threshold: 5%
+    patch:
+      default:
+        target: 80%