public static List<UnixMountInfo> getUnixMountInfo() throws IOException {
    Preconditions.checkState(OSUtils.isLinux() || OSUtils.isMacOS());
    String output = execCommand(MOUNT_COMMAND);
    List<UnixMountInfo> mountInfo = new ArrayList<>();
    for (String line : output.split("\n")) {
      mountInfo.add(parseMountInfo(line));
    }
    return mountInfo;
  }
@Test
  public void getMountInfo() throws Exception {
    assumeTrue(OSUtils.isMacOS() || OSUtils.isLinux());
    List<UnixMountInfo> info = ShellUtils.getUnixMountInfo();
    assertTrue(info.size() > 0);
  }