content: /*
   * 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.calcite.avatica.remote;
  
  import org.apache.calcite.avatica.remote.KerberosConnection.RenewalTask;
  
  import org.junit.Test;
  import org.mockito.Mockito;
  
  import java.io.File;
  import java.util.Locale;
  import java.util.Map.Entry;
  import javax.security.auth.Subject;
  import javax.security.auth.login.Configuration;
  import javax.security.auth.login.LoginContext;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.nullable;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  /**
   * Test case for KerberosConnection
   */
  public class KerberosConnectionTest {
  
    @Test(expected = NullPointerException.class) public void testNullArgs() {
      new KerberosConnection(null, null);
    }
  
    @Test public void testThreadConfiguration() {
      KerberosConnection krbUtil = new KerberosConnection("foo", new File("/bar.keytab"));
      Subject subject = new Subject();
      LoginContext context = Mockito.mock(LoginContext.class);
  
      Entry<RenewalTask, Thread> entry = krbUtil.createRenewalThread(context, subject, 10);
      assertNotNull("RenewalTask should not be null", entry.getKey());
      Thread t = entry.getValue();
      assertTrue("Thread name should contain 'Avatica', but is '" + t.getName() + "'",
          t.getName().contains("Avatica"));
      assertTrue(t.isDaemon());
      assertNotNull(t.getUncaughtExceptionHandler());
    }
  
    @Test public void noPreviousContextOnLogin() throws Exception {
      KerberosConnection krbUtil = mock(KerberosConnection.class);
      Subject subject = new Subject();
      Subject loggedInSubject = new Subject();
      Configuration conf = mock(Configuration.class);
      LoginContext context = mock(LoginContext.class);
  
      // Call the real login(LoginContext, Configuration, Subject) method
      when(krbUtil.login(nullable(LoginContext.class), any(Configuration.class), any(Subject.class)))
          .thenCallRealMethod();
      // Return a fake LoginContext
      when(krbUtil.createLoginContext(conf)).thenReturn(context);
      // Return a fake Subject from that fake LoginContext
      when(context.getSubject()).thenReturn(loggedInSubject);
  
      Entry<LoginContext, Subject> pair = krbUtil.login(null, conf, subject);
  
      // Verify we get the fake LoginContext and Subject
      assertEquals(context, pair.getKey());
      assertEquals(loggedInSubject, pair.getValue());
  
      // login should be called on the LoginContext
      verify(context).login();
    }
  
    @Test public void previousContextLoggedOut() throws Exception {
      KerberosConnection krbUtil = mock(KerberosConnection.class);
      Subject subject = new Subject();
      Subject loggedInSubject = new Subject();
      Configuration conf = mock(Configuration.class);
      LoginContext originalContext = mock(LoginContext.class);
      LoginContext context = mock(LoginContext.class);
  
      // Call the real login(LoginContext, Configuration, Subject) method
      when(krbUtil.login(any(LoginContext.class), any(Configuration.class), any(Subject.class)))
          .thenCallRealMethod();
      // Return a fake LoginContext
      when(krbUtil.createLoginContext(conf)).thenReturn(context);
      // Return a fake Subject from that fake LoginContext
      when(context.getSubject()).thenReturn(loggedInSubject);
  
      Entry<LoginContext, Subject> pair = krbUtil.login(originalContext, conf, subject);
  
      // Verify we get the fake LoginContext and Subject
      assertEquals(context, pair.getKey());
      assertEquals(loggedInSubject, pair.getValue());
  
      verify(originalContext).logout();
  
      // login should be called on the LoginContext
      verify(context).login();
    }
  
    @Test public void testTicketRenewalTime() {
      RenewalTask renewal = mock(RenewalTask.class);
      when(renewal.shouldRenew(any(long.class), any(long.class), any(long.class)))
          .thenCallRealMethod();
  
      long start = 0;
      long end = 200;
      long now = 100;
      assertFalse(renewal.shouldRenew(start, end, now));
  
      // Renewal should happen at 80%
      start = 0;
      end = 100;
      now = 80;
      assertTrue(renewal.shouldRenew(start, end, now));
  
      start = 5000;
      // One day
      end = start + 1000 * 60 * 60 * 24;
      // Ten minutes prior to expiration
      now = end - 1000 * 60 * 10;
      assertTrue(
          String.format(Locale.ROOT, "start=%d, end=%d, now=%d", start, end, now),
          renewal.shouldRenew(start, end, now));
    }
  }
  
  // End KerberosConnectionTest.java
  