/**
  * Ensures that the rmt config section can be added to the composer file.
  */
 public function testAddRmtConfigSection()
 {
     $config = \Liip\RMT\Config::create(array('vcs' => 'git', "prerequisites" => array("working-copy-check", "display-last-changes"), 'versionPersister' => "vcs-tag"));
     $serialized = $this->helper->addRMTConfigSection($config);
     $this->assertContains('vcs-tag', $serialized);
     $config = $this->helper->getRMTConfigSection();
     $this->assertNotNull($config);
     $this->assertEquals('git', $config->getVcs(), var_export($config, true));
 }