code: @Test public void faultTest() throws IOException {
    int clients=10;
    mTfs.createFile("/0",1024);
    for (int k=1; k < clients; k++) {
      TachyonFS tfs=mLocalTachyonClusterMultiMaster.getClient();
      tfs.createFile("/" + k,1024);
    }
    List<String> files=mTfs.ls("/",true);
    Assert.assertEquals(clients + 1,files.size());
    Assert.assertEquals("/",files.get(0));
    for (int k=0; k < clients; k++) {
      Assert.assertEquals("/" + k,files.get(k + 1));
    }
    for (int kills=1; kills <= 3; kills++) {
      Assert.assertTrue(mLocalTachyonClusterMultiMaster.killLeader());
      CommonUtils.sleepMs(null,1500);
      mTfs=mLocalTachyonClusterMultiMaster.getClient();
      files=mTfs.ls("/",true);
      Assert.assertEquals(clients + 1,files.size());
      Assert.assertEquals("/",files.get(0));
      for (int k=0; k < clients; k++) {
        Assert.assertEquals("/" + k,files.get(k + 1));
      }
    }
  }
  