Add coverage

.github/workflows/test.yml

@@ -9,8 +9,24 @@ jobs:
 
       - uses: php-actions/composer@v6
 
-      - name: PHPUnit Tests
-        uses: php-actions/phpunit@master
+      - name: Cache vendor folder
+        uses: actions/cache@v3
         with:
-          bootstrap: vendor/autoload.php
-          configuration: phpunit.xml
+          path: "vendor"
+          key: ${{ runner.os }}-${{ hashFiles('**/composer.lock') }}
+
+      - name: Cache dependencies installed with composer
+        uses: actions/cache@v3
+        with:
+          path: "/tmp/cache"
+          key: ${{ runner.os }}-${{ hashFiles('**/composer.lock') }}
+
+      - name: Run PHPUnit + Coverage
+        run: vendor/bin/phpunit --coverage-clover ./coverage.xml
+
+      - name: Upload code coverage to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODE_COV_TOKEN }}
+          files: ./coverage.xml
+          verbose: true

phpunit.xml

@@ -3,13 +3,19 @@
          colors="true"
          xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.1/phpunit.xsd"
          cacheDirectory=".phpunit.cache"
+         executionOrder="depends,defects"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         failOnRisky="true"
+         failOnWarning="true"
 >
   <testsuites>
     <testsuite name="PHP ByteArray Tests">
       <directory>tests</directory>
     </testsuite>
   </testsuites>
-  <coverage/>
+  <coverage cacheDirectory=".phpunit.cache/code-coverage">
+  </coverage>
   <source>
     <include>
       <directory suffix=".php">src</directory>