### Question:
GlusterFileSystemProvider extends FileSystemProvider { @Override public boolean isSameFile(Path path, Path path2) throws IOException { if (path.equals(path2)) { return true; } if (!path.getFileSystem().equals(path2.getFileSystem())) { return false; } guardFileExists(path); guardFileExists(path2); stat stat1 = statPath(path); stat stat2 = statPath(path2); return stat1.st_ino == stat2.st_ino; }  @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 testIsSameFile_whenSamePaths() throws IOException { doReturn("/").when(mockFileSystem).getSeparator(); GlusterPath path = new GlusterPath(mockFileSystem, "/foo/bar"); boolean ret = provider.isSameFile(path, path); assertTrue(ret); verify(mockFileSystem, times(3)).getSeparator(); }
@Test public void testIsSameFile_whenPathsEqual() throws IOException { doReturn("/").when(mockFileSystem).getSeparator(); GlusterPath path1 = new GlusterPath(mockFileSystem, "/foo/bar"); GlusterPath path2 = new GlusterPath(mockFileSystem, "/foo/bar"); boolean ret = provider.isSameFile(path1, path2); assertTrue(ret); verify(mockFileSystem, times(6)).getSeparator(); }