getFilesystem() public method

Return FilesystemInterface saved under $prefix key or null if it does not exist.
public getFilesystem ( string $prefix ) : Kraken\Filesystem\FilesystemInterface
$prefix string
return Kraken\Filesystem\FilesystemInterface
 /**
  * @dataProvider filesystemManagerProvider
  */
 public function testApiGetFilesystem_ReturnsNull_WhenFsDoesNotExist(FilesystemManagerInterface $fs)
 {
     $prefix = 'prefix';
     $this->assertSame(null, $fs->getFilesystem($prefix));
 }