public function testRetrieveFile()
{
$dir = vfsStream::setup('base');
mkdir('vfs://base/src');
mkdir('vfs://base/dest');
file_put_contents('vfs://base/src/test.csv', 'testdata');
$sut = new Dfp_Datafeed_Transfer_Adapter_Stream();
$sut->setHost('base/src');
$sut->setSchema('vfs');
$sut->setBasePath('vfs://base/dest');
$sut->retrieveFile('test.csv');
$this->assertEquals('testdata', file_get_contents('vfs://base/dest/test.csv'));
$sut->retrieveFile('test.csv', 'test2.csv');
$this->assertEquals('testdata', file_get_contents('vfs://base/dest/test2.csv'));
}
