@Test
public void mkdirTest() throws IOException, AlluxioException {

  String qualifiedPath =
          "tachyon://" + mLocalAlluxioCluster.getMasterHostname() + ":"
                  + mLocalAlluxioCluster.getMasterPort() + "/root/testFile1";
  InterpreterResult output = alluxioInterpreter.interpret("mkdir " + qualifiedPath, null);
  boolean existsDir = fs.exists(new AlluxioURI("/root/testFile1"));
  Assert.assertEquals(
          "Successfully created directory " + qualifiedPath + "\n\n",
          output.message());
  Assert.assertTrue(existsDir);
}