public function testStore()
{
$imageData = file_get_contents(FIXTURES_DIR . '/image.png');
$baseDir = 'someDir';
// Create the virtual directory
vfsStream::setup($baseDir);
$driver = new Filesystem(['dataDir' => vfsStream::url($baseDir)]);
$this->assertTrue($driver->store($this->user, $this->imageIdentifier, $imageData));
}