Xpressengine\Plugin\PluginEntity::setInstalledVersion PHP Method

    public function setInstalledVersion($version)
    {
        $this->installedVersion = $version;
    }

 /**
  * @depends testConstruct
  *
  * @param \Xpressengine\Plugin\PluginEntity $entity
  */
 public function testCheckUpdate($entity)
 {
     $entity->setInstalledVersion('2.0.0');
     $this->assertFalse($entity->checkUpdate());
 }