/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hive.minikdc;

import static org.junit.Assert.*;

import java.io.File;

import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.shims.Utils;
import org.apache.hadoop.security.UserGroupInformation;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import com.google.common.io.Files;

public class TestMiniHiveKdc {

  private static File baseDir;
  private MiniHiveKdc miniHiveKdc;
  private HiveConf hiveConf;

  @BeforeClass
  public static void beforeTest() throws Exception {
    baseDir =  Files.createTempDir();
    baseDir.deleteOnExit();
  }

  @Before
  public void setUp() throws Exception {
    hiveConf = new HiveConf();
    miniHiveKdc = MiniHiveKdc.getMiniHiveKdc(hiveConf);
  }

  @After
  public void tearDown() throws Exception {
    miniHiveKdc.shutDown();
  }

  @Test
  public void testLogin() throws Exception {
    String servicePrinc = miniHiveKdc.getHiveServicePrincipal();
    assertNotNull(servicePrinc);
    miniHiveKdc.loginUser(servicePrinc);
    assertTrue(UserGroupInformation.isLoginKeytabBased());
    UserGroupInformation ugi = Utils.getUGI();
    assertEquals(MiniHiveKdc.HIVE_SERVICE_PRINCIPAL, ugi.getShortUserName());
  }

  @AfterClass
  public static void afterTest() throws Exception {

  }

}