add coverage to coveralls

.coveralls.yml

@@ -0,0 +1,4 @@
+service_name: github-actions
+
+# for php-coveralls
+coverage_clover: build/logs/clover.xml

.github/workflows/tests.yml

@@ -16,10 +16,16 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-versions }}
-          coverage: none
+          tools: composer:v2
       - uses: actions/checkout@v2
       - uses: php-actions/composer@v6
         with:
           php_version: ${{ matrix.php-versions }}
           version: 2
-      - run: ./vendor/bin/phpunit
+      - run: XDEBUG_MODE=coverage ./vendor/bin/phpunit
+      - name: Upload coverage results to Coveralls
+        env:
+          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          composer global require php-coveralls/php-coveralls
+          php-coveralls --coverage_clover=build/logs/clover.xml -v

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - add run of tests on Github Actions
+- add coverage to coveralls
 
 ### Removed
 - remove Travis integration for tests

README.md

@@ -1,6 +1,7 @@
 Convert World Coordinates to Swiss Coordinates - and vice versa
 =============
 
+[![Coverage Status](https://coveralls.io/repos/github/antistatique/swisstopo/badge.svg?branch=dev)](https://coveralls.io/github/antistatique/swisstopo?branch=dev)
 [![Build](https://github.com/antistatique/swisstopo/actions/workflows/tests.yml/badge.svg)](https://github.com/antistatique/swisstopo/actions/workflows/tests.yml)
 [![Packagist](https://img.shields.io/packagist/dt/antistatique/swisstopo.svg?maxAge=2592000)](https://packagist.org/packages/antistatique/swisstopo)
 [![License](https://poser.pugx.org/antistatique/swisstopo/license)](https://packagist.org/packages/antistatique/swisstopo)