Add coverage

.gitattributes

@@ -15,3 +15,4 @@
 /phpunit.xml            export-ignore
 /psalm-baseline.xml     export-ignore
 /psalm.xml              export-ignore
+/clover.xml             export-ignore

.github/workflows/tests.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - 'release'
       - 'hotfix'
+      - 'feature/coverage-badge'
 
 permissions:
   contents: read
@@ -314,6 +315,8 @@ jobs:
 
   unit-tests:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
 
     strategy:
       fail-fast: true
@@ -344,13 +347,20 @@ jobs:
       with:
         php-version: ${{ matrix.php }}
         extensions: dom, libxml, mbstring
-        coverage: none
+        coverage: xdebug
 
     - name: Install dependencies
       run: composer install --no-interaction --no-progress --no-suggest --prefer-dist
 
     - name: Execute unit tests
-      run: composer u-tests
+      run: XDEBUG_MODE_COVERAGE=coverage composer u-tests
+
+    - name: Generate test coverage badge
+      uses: timkrase/[email protected]
+      with:
+        coverage_badge_path: '.github/badge.svg'
+        push_badge: true
+        repo_token: ${{ secrets.GITHUB_TOKEN }}
 
   php-salm:
     runs-on: ubuntu-latest

phpunit.xml

@@ -8,6 +8,9 @@
         <include>
             <directory suffix=".php">./src</directory>
         </include>
+        <report>
+            <clover outputFile="clover.xml" />
+        </report>
     </coverage>
 
     <testsuites>