@SuppressWarnings("unchecked")
@Test
public void testCredentialsTransfer() {
WrappedContainerMultipleDAGs wc = new WrappedContainerMultipleDAGs();
TezDAGID dagID2 = TezDAGID.getInstance("800", 500, 2);
TezDAGID dagID3 = TezDAGID.getInstance("800", 500, 3);
TezVertexID vertexID2 = TezVertexID.getInstance(dagID2, 1);
TezVertexID vertexID3 = TezVertexID.getInstance(dagID3, 1);
TezTaskID taskID2 = TezTaskID.getInstance(vertexID2, 1);
TezTaskID taskID3 = TezTaskID.getInstance(vertexID3, 1);
TezTaskAttemptID attempt11 = TezTaskAttemptID.getInstance(wc.taskID, 200);
TezTaskAttemptID attempt12 = TezTaskAttemptID.getInstance(wc.taskID, 300);
TezTaskAttemptID attempt21 = TezTaskAttemptID.getInstance(taskID2, 200);
TezTaskAttemptID attempt22 = TezTaskAttemptID.getInstance(taskID2, 300);
TezTaskAttemptID attempt31 = TezTaskAttemptID.getInstance(taskID3, 200);
TezTaskAttemptID attempt32 = TezTaskAttemptID.getInstance(taskID3, 300);
Map<String, LocalResource> LRs = new HashMap<String, LocalResource>();
AMContainerTask fetchedTask = null;
Token<TokenIdentifier> amGenToken = mock(Token.class);
Token<TokenIdentifier> token1 = mock(Token.class);
Token<TokenIdentifier> token3 = mock(Token.class);
Credentials containerCredentials = new Credentials();
TokenCache.setSessionToken(amGenToken, containerCredentials);
Text token1Name = new Text("tokenDag1");
Text token3Name = new Text("tokenDag3");
Credentials dag1Credentials = new Credentials();
dag1Credentials.addToken(new Text(token1Name), token1);
Credentials dag3Credentials = new Credentials();
dag3Credentials.addToken(new Text(token3Name), token3);
wc.launchContainer(new HashMap<String, LocalResource>(), containerCredentials);
wc.containerLaunched();
wc.assignTaskAttempt(attempt11, LRs, dag1Credentials);
fetchedTask = wc.pullTaskToRun();
assertTrue(fetchedTask.haveCredentialsChanged());
assertNotNull(fetchedTask.getCredentials());
assertNotNull(fetchedTask.getCredentials().getToken(token1Name));
wc.taskAttemptSucceeded(attempt11);
wc.assignTaskAttempt(attempt12, LRs, dag1Credentials);
fetchedTask = wc.pullTaskToRun();
assertFalse(fetchedTask.haveCredentialsChanged());
assertNull(fetchedTask.getCredentials());
wc.taskAttemptSucceeded(attempt12);
// Move to running a second DAG, with no credentials.
wc.setNewDAGID(dagID2);
wc.assignTaskAttempt(attempt21, LRs, null);
fetchedTask = wc.pullTaskToRun();
assertTrue(fetchedTask.haveCredentialsChanged());
assertNull(fetchedTask.getCredentials());
wc.taskAttemptSucceeded(attempt21);
wc.assignTaskAttempt(attempt22, LRs, null);
fetchedTask = wc.pullTaskToRun();
assertFalse(fetchedTask.haveCredentialsChanged());
assertNull(fetchedTask.getCredentials());
wc.taskAttemptSucceeded(attempt22);
// Move to running a third DAG, with Credentials this time
wc.setNewDAGID(dagID3);
wc.assignTaskAttempt(attempt31, LRs, dag3Credentials);
fetchedTask = wc.pullTaskToRun();
assertTrue(fetchedTask.haveCredentialsChanged());
assertNotNull(fetchedTask.getCredentials());
assertNotNull(fetchedTask.getCredentials().getToken(token3Name));
assertNull(fetchedTask.getCredentials().getToken(token1Name));
wc.taskAttemptSucceeded(attempt31);
wc.assignTaskAttempt(attempt32, LRs, dag1Credentials);
fetchedTask = wc.pullTaskToRun();
assertFalse(fetchedTask.haveCredentialsChanged());
assertNull(fetchedTask.getCredentials());
wc.taskAttemptSucceeded(attempt32);
}
