/*
 * 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.geode.internal.jta;

import static org.apache.geode.distributed.ConfigurationProperties.*;
import static org.junit.Assert.*;

import java.util.Properties;
import javax.transaction.NotSupportedException;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.UserTransaction;

import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import org.apache.geode.distributed.DistributedSystem;
import org.apache.geode.test.junit.categories.IntegrationTest;

/**
 * Check if the correct expectations are being thrown when they are supposed to.
 */
@Category(IntegrationTest.class)
public class ExceptionJUnitTest {

  private static DistributedSystem ds;
  private static TransactionManagerImpl tm;

  private UserTransaction utx = null;

  @BeforeClass
  public static void beforeClass() throws Exception {
    Properties props = new Properties();
    props.setProperty(MCAST_PORT, "0");
    ds = DistributedSystem.connect(props);
    tm = TransactionManagerImpl.getTransactionManager();
  }

  @AfterClass
  public static void afterClass() {
    ds.disconnect();
    ds = null;
    tm = null;
  }

  @Before
  public void setUp() throws Exception {
    utx = new UserTransactionImpl();
  }

  @Test
  public void testNestedTransactionNotSupported() throws Exception {
    try {
      utx.begin();
      utx.begin();
      utx.commit();
      fail("Exception on nested transaction not thrown");
    } catch (NotSupportedException expected) {
      utx.commit();
    }
  }

  @Test
  public void testCommitSystemException() throws Exception {
    try {
      utx.commit();
      fail("IllegalStateException not thrown on commit");
    } catch (IllegalStateException expected) {
      // success
    }
  }

  @Test
  public void testRollbackIllegalStateException() throws Exception {
    try {
      utx.begin();
      GlobalTransaction gtx = tm.getGlobalTransaction();
      gtx.setStatus(Status.STATUS_UNKNOWN);
      utx.rollback();
      fail("IllegalStateException not thrown on rollback");
    } catch (IllegalStateException e) {
      GlobalTransaction gtx = tm.getGlobalTransaction();
      gtx.setStatus(Status.STATUS_ACTIVE);
      utx.commit();
    }
  }

  @Test
  public void testAddNullTransaction() throws Exception {
    try {
      utx.begin();
      GlobalTransaction gtx = tm.getGlobalTransaction();
      Transaction txn = null;
      gtx.addTransaction(txn);
      utx.commit();
      fail("SystemException not thrown on adding null transaction");
    } catch (SystemException e) {
      utx.commit();
    }
  }
}
