### Question:
GlusterFileSystemProvider extends FileSystemProvider { stat statPath(Path path) throws IOException { stat stat = new stat(); String pathString = ((GlusterPath) path).getString(); int ret = GLFS.glfs_stat(((GlusterFileSystem) path.getFileSystem()).getVolptr(), pathString, stat); if (ret != 0) { throw new IOException("Stat failed for " + pathString); } return stat; }  @Override String getScheme(); @Override FileSystem newFileSystem(URI uri, Map<String, ?> stringMap); @Override FileSystem getFileSystem(URI uri); @Override Path getPath(URI uri); @Override SeekableByteChannel newByteChannel(Path path, Set<? extends OpenOption> openOptions, FileAttribute<?>... fileAttributes); @Override FileChannel newFileChannel(Path path, Set<? extends OpenOption> options, FileAttribute<?>... attrs); @Override DirectoryStream<Path> newDirectoryStream(Path path, DirectoryStream.Filter<? super Path> filter); @Override void createDirectory(Path path, FileAttribute<?>... fileAttributes); @Override void delete(Path path); @Override void copy(Path path, Path path2, CopyOption... copyOptions); @Override void move(Path path, Path path2, CopyOption... copyOptions); @Override boolean isSameFile(Path path, Path path2); @Override boolean isHidden(Path path); @Override FileStore getFileStore(Path path); @Override void checkAccess(Path path, AccessMode... accessModes); @Override V getFileAttributeView(Path path, Class<V> vClass, LinkOption... linkOptions); @Override A readAttributes(Path path, Class<A> type, LinkOption... linkOptions); @Override Map<String, Object> readAttributes(Path path, String s, LinkOption... linkOptions); @Override void setAttribute(Path path, String s, Object o, LinkOption... linkOptions); @Override Path readSymbolicLink(Path link); @Override void createSymbolicLink(Path link, Path target, FileAttribute<?>... attrs); static final String GLUSTER; static final int GLUSTERD_PORT; static final String TCP; }### Answer:
@Test public void testStatPath() throws Exception { long volptr = 1234L; stat stat = new stat(); whenNew(stat.class).withNoArguments().thenReturn(stat); mockStatic(GLFS.class); String pathString = "/foo"; when(GLFS.glfs_stat(volptr, pathString, stat)).thenReturn(0); doReturn(mockFileSystem).when(mockPath).getFileSystem(); doReturn(volptr).when(mockFileSystem).getVolptr(); doReturn(pathString).when(mockPath).getString(); stat ret = provider.statPath(mockPath); assertTrue(ret == stat); verify(mockPath).getFileSystem(); verify(mockFileSystem).getVolptr(); verify(mockPath).getString(); verifyStatic(); GLFS.glfs_stat(volptr, pathString, stat); verifyNew(stat.class).withNoArguments(); }