### Question:
GlusterFileSystem extends FileSystem { @Override public String getSeparator() { return SEPARATOR; }  @Override FileSystemProvider provider(); @Override void close(); @Override boolean isOpen(); @Override boolean isReadOnly(); @Override String getSeparator(); @Override Iterable<Path> getRootDirectories(); @Override Iterable<FileStore> getFileStores(); @Override Set<String> supportedFileAttributeViews(); @Override Path getPath(String s, String... strings); @Override PathMatcher getPathMatcher(String s); @Override UserPrincipalLookupService getUserPrincipalLookupService(); @Override WatchService newWatchService(); String toString();  }### Answer:
@Test public void testGetSeparator() { assertEquals("/", fileSystem.getSeparator()); }