public function testAddGetDeleteValueFromFileSystem()
{
\DBG::log('*** testAddAndGetValueFromFileSystem ***');
$this->addValuesFileSystem();
$this->addValuesFileSystem();
Setting::init('MultiSiteTest', null, 'FileSystem');
$this->assertEquals('value6.1', Setting::getValue('key6.1'));
$this->assertEquals('value6.2', Setting::getValue('key6.2'));
$this->assertEquals('value8.1', Setting::getValue('key8.1', 'SupportTest'));
$this->assertEquals('value8.2', Setting::getValue('key8.2', 'SupportTest'));
$this->assertEquals('value7.1', Setting::getValue('key7.1'));
$this->assertEquals('value7.2', Setting::getValue('key7.2'));
/** delete check **/
Setting::init('MultiSiteTest', 'testgroup1', 'Database');
Setting::delete('key1.1');
Setting::init('MultiSiteTest', 'testgroup1', 'Database');
$this->assertNull(Setting::getValue('key1.1'));
$this->deleteValuesFileSystem();
Setting::init('MultiSiteTest', null, 'FileSystem');
$this->assertEmpty(Setting::getSettings('MultiSiteTest', 'FileSystem'));
Setting::init('SupportTest', null, 'FileSystem');
$this->assertEmpty(Setting::getSettings('SupportTest', 'FileSystem'));
}