import org.apache.hadoop.crypto.key.KeyProviderCryptoExtension.CryptoExtension; //导入依赖的package包/类
/**
 * Tests obtaining delegation token from stored key
 */
@Test(timeout = 120000)
public void testDelegationToken() throws Exception {
  UserGroupInformation.createRemoteUser("JobTracker");
  DistributedFileSystem dfs = cluster.getFileSystem();
  KeyProvider keyProvider = Mockito.mock(KeyProvider.class,
      withSettings().extraInterfaces(
          DelegationTokenExtension.class,
          CryptoExtension.class));
  Mockito.when(keyProvider.getConf()).thenReturn(conf);
  byte[] testIdentifier = "Test identifier for delegation token".getBytes();

  Token<?> testToken = new Token(testIdentifier, new byte[0],
      new Text(), new Text());
  Mockito.when(((DelegationTokenExtension)keyProvider).
      addDelegationTokens(anyString(), (Credentials)any())).
      thenReturn(new Token<?>[] { testToken });

  dfs.getClient().setKeyProvider(keyProvider);

  Credentials creds = new Credentials();
  final Token<?> tokens[] = dfs.addDelegationTokens("JobTracker", creds);
  DistributedFileSystem.LOG.debug("Delegation tokens: " +
      Arrays.asList(tokens));
  Assert.assertEquals(2, tokens.length);
  Assert.assertEquals(tokens[1], testToken);
  Assert.assertEquals(1, creds.numberOfTokens());
}
 

import org.apache.hadoop.crypto.key.KeyProviderCryptoExtension.CryptoExtension; //导入依赖的package包/类
/**
 * Tests obtaining delegation token from stored key
 */
@Test(timeout = 120000)
public void testDelegationToken() throws Exception {
  UserGroupInformation.createRemoteUser("JobTracker");
  DistributedFileSystem dfs = cluster.getFileSystem();
  KeyProvider keyProvider = Mockito.mock(KeyProvider.class,
      withSettings().extraInterfaces(
          DelegationTokenExtension.class,
          CryptoExtension.class));
  Mockito.when(keyProvider.getConf()).thenReturn(conf);
  byte[] testIdentifier = "Test identifier for delegation token".getBytes();

  Token<?> testToken = new Token(testIdentifier, new byte[0],
      new Text(), new Text());
  Mockito.when(((DelegationTokenExtension)keyProvider).
      addDelegationTokens(anyString(), (Credentials)any())).
      thenReturn(new Token<?>[] { testToken });

  dfs.getClient().provider = keyProvider;

  Credentials creds = new Credentials();
  final Token<?> tokens[] = dfs.addDelegationTokens("JobTracker", creds);
  DistributedFileSystem.LOG.debug("Delegation tokens: " +
      Arrays.asList(tokens));
  Assert.assertEquals(2, tokens.length);
  Assert.assertEquals(tokens[1], testToken);
  Assert.assertEquals(1, creds.numberOfTokens());
}