Report test coverage for PHP

Signed-off-by: Georg Ehrke <developer@georgehrke.com>

.github/workflows/php-test.yml

@@ -38,3 +38,10 @@ jobs:
     - name: Run tests
       working-directory: nextcloud/apps/calendar
       run: composer run test
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        file: ./nextcloud/apps/calendar/tests/php/clover.unit.xml
+        flags: php
+        fail_ci_if_error: true

composer.json

@@ -15,6 +15,6 @@
     "scripts": {
         "lint": "find . -name \\*.php -not -path './vendor/*' -exec php -l \"{}\" \\;",
         "phan": "phan --allow-polyfill-parser -k .phan/config.php",
-        "test": "phpunit --bootstrap tests/php/unit/bootstrap.php tests/php/unit/ --fail-on-warning"
+        "test": "phpunit --configuration tests/php/phpunit.unit.xml --fail-on-warning"
     }
 }

tests/php/phpunit.unit.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<phpunit bootstrap="unit/bootstrap.php"
+         verbose="true"
+         timeoutForSmallTests="900"
+         timeoutForMediumTests="900"
+         timeoutForLargeTests="900"
+>
+    <testsuite name='Calendar app tests'>
+        <directory suffix='test.php'>unit</directory>
+        <directory suffix='Test.php'>unit</directory>
+    </testsuite>
+    <!-- filters for code coverage -->
+    <filter>
+        <whitelist>
+            <directory suffix=".php">../../</directory>
+            <exclude>
+                <directory suffix=".php">../calendar/appinfo</directory>
+                <directory suffix=".php">../calendar/l10n</directory>
+                <directory suffix=".php">../calendar/templates</directory>
+                <directory suffix=".php">../calendar/tests</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+    <logging>
+        <!-- and this is where your report will be written -->
+        <log type="coverage-clover" target="./clover.unit.xml"/>
+    </logging>
+</phpunit>