/*
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * Portions Copyright (c) 2012 IBM Corporation
 */

import java.io.InputStream;

import javax.sql.rowset.serial.SerialBlob;
import javax.sql.rowset.serial.SerialException;

/**
 * @test
 * @bug 
 * @summary tests for free() and getBinaryStream on SerialBlob
 */

public class FreeAndGetBinaryStream {
  static byte[] byteArray = new byte[] {1, 2, 3, 4, 5};

  private static SerialBlob prepareSerialBlob() throws Exception {
    return new SerialBlob(byteArray);
  }

  public static void testFree() throws Exception {
    SerialBlob sb = prepareSerialBlob();
    sb.free();
    // test a API, should throw exception after free()
    Exception exception = null;
    try {
      sb.getBinaryStream();
    } catch (SerialException se) {
      exception = se;
    }
    if (exception == null) {
      throw new Exception("operation on a freed SerialBlob should throw exception");
    }
    // multiple calls are treated as no-op
    sb.free();
  }

  public static void testGetBinaryStreamLLContent() throws Exception {
    SerialBlob sb = prepareSerialBlob();
    InputStream is = sb.getBinaryStream(1, 3);

    byte[] expected = new byte[] {1, 2, 3};
    for (int idx=0; idx<3; idx++) {
      if (expected[idx] != is.read()) {
        throw new Exception("Unexpected byte");
      }
    }

    if (is.read()!=-1) {
      throw new Exception("More left in SerialBlob");
    }
  }

  public static void testGetBinaryStreamLLEdgyCase() throws Exception {
    SerialBlob sb = prepareSerialBlob();
    Exception exception = null;

    try {
      sb.getBinaryStream(-1, 3);
    } catch (SerialException se) {
      exception = se;
    }
    if (exception==null) {
      throw new Exception("Should throw exception when pos < 0");
    }

    sb = prepareSerialBlob();
    exception = null;
    try {
      sb.getBinaryStream(0, 3);
    } catch (SerialException se) {
      exception = se;
    }
    if (exception==null) {
      throw new Exception("Should throw exception when pos == 0");
    }

    sb = prepareSerialBlob();
    exception = null;
    try {
      sb.getBinaryStream(1, byteArray.length+1);
    } catch (SerialException se) {
      exception = se;
    }
    if (exception==null) {
      throw new Exception("Should throw exception when pos + length > actual length + 1");
    }

    sb = prepareSerialBlob();
    exception = null;
    try {
      sb.getBinaryStream(byteArray.length+1, 2);
    } catch (SerialException se) {
      exception = se;
    }
    if (exception==null) {
      throw new Exception("Should throw exception when pos > length");
    }
  }

  public static void main(String[] args) throws Exception {
    testGetBinaryStreamLLEdgyCase();
    testGetBinaryStreamLLContent();
    testFree();
  }

}