public function testDataSourceConfig()
{
$dataSourceConfig = new DataSourceConfig();
$dataSourceConfig->setKey('key');
$dataSourceConfig->setType('\\PDO');
$dataSourceConfig->addProperty('key1', 'value1');
$dataSourceConfig->addProperty('key2', 'value2');
$expected = "\\Phruts\\Config\\DataSourceConfig[key='key',type='\\\\PDO',key1='value1',key2='value2']";
$this->assertEquals($expected, (string) $dataSourceConfig);
// TODO: Test exception
$dataSourceConfig->freeze();
$this->setExpectedException('\\Phruts\\Exception\\IllegalStateException');
$dataSourceConfig->setKey('expected');
}