package io.hadoop.fs.spi; import java.nio.file.spi.FileSystemProvider; import java.util.List; import junit.framework.Assert; import org.junit.Test; import io.dstream.hadoop.fs.spi.HdfsFileSystemProvider; public class HdfsFileSystemProviderTests { @Test public void validateProviderLoaded() throws Exception { List<FileSystemProvider> providers = FileSystemProvider.installedProviders(); int length = providers.stream().filter(x -> x instanceof HdfsFileSystemProvider).toArray().length; Assert.assertEquals(1, length); //FileSystem fs = FileSystems.getFileSystem(new URI("hdfs://hortonworks.com:9000")); } }