also add test for running upgrade via cron

.travis.yml

@@ -53,6 +53,7 @@ before_script:
     - mkdir data
     - ./occ maintenance:install --database-name oc_autotest --database-user oc_autotest --admin-user admin --admin-pass admin --database $DB --database-pass=''
     - ./occ app:enable news
+    - ./occ background:cron  # enable default cron
     - cd apps/news/js
     # install test deps
     - npm install --deps # npm install needs to run before sudo npm install because otherwise it fails because a tmp file exists in the home dir

tests/integration/command/CommandTest.php

@@ -11,8 +11,17 @@
 
 class CommandTest extends \PHPUnit_Framework_TestCase {
 
-    public function testCommandOk() {
-        $command = __DIR__ . '/../../../../../occ news:create-search-indices';
+    private $corePath = __DIR__ . '/../../../../../';
+
+    public function testGenerateIndices() {
+        $command = $this->corePath . 'occ news:create-search-indices';
+        exec($command, $_, $success);
+
+        $this->assertSame(0, $success);
+    }
+
+    public function testCronUpdate() {
+        $command = 'php -f ' . $this->corePath . 'cron.php';
         exec($command, $_, $success);
 
         $this->assertSame(0, $success);