gecko/modules/libjar/zipwriter/test/unit/test_storedata.js

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Zip Writer Component.
 *
 * The Initial Developer of the Original Code is
 * Dave Townsend <dtownsend@oxymoronical.com>.
 *
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK *****
 */

const DATA = "ZIP WRITER TEST DATA";
const FILENAME = "test.txt";
const FILENAME2 = "test2.txt";
const CRC = 0xe6164331;
// XXX Must use a constant time here away from DST changes. See bug 402434.
const time = 1199145600000; // Jan 1st 2008

function testpass(source)
{
  // Should exist.
  do_check_true(source.hasEntry(FILENAME));

  var entry = source.getEntry(FILENAME);
  do_check_neq(entry, null);

  do_check_false(entry.isDirectory);

  // Should be stored
  do_check_eq(entry.compression, ZIP_METHOD_STORE);

  var diff = Math.abs((entry.lastModifiedTime / PR_USEC_PER_MSEC) - time);
  if (diff > TIME_RESOLUTION)
    do_throw(diff);

  // File size should match our data size.
  do_check_eq(entry.realSize, DATA.length);
  // When stored sizes should match.
  do_check_eq(entry.size, entry.realSize);

  // Check that the CRC is accurate
  do_check_eq(entry.CRC32, CRC);
}

function run_test()
{
  zipW.open(tmpFile, PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE);

  // Shouldn't be there to start with.
  do_check_false(zipW.hasEntry(FILENAME));

  do_check_false(zipW.inQueue);

  var stream = Cc["@mozilla.org/io/string-input-stream;1"]
                .createInstance(Ci.nsIStringInputStream);
  stream.setData(DATA, DATA.length);
  zipW.addEntryStream(FILENAME, time * PR_USEC_PER_MSEC,
                      Ci.nsIZipWriter.COMPRESSION_NONE, stream, false);

  // Check that zip state is right at this stage.
  testpass(zipW);
  zipW.close();

  do_check_eq(tmpFile.fileSize,
              DATA.length + ZIP_FILE_HEADER_SIZE + ZIP_CDS_HEADER_SIZE +
              (FILENAME.length * 2) + ZIP_EOCDR_HEADER_SIZE);

  // Check to see if we get the same results loading afresh.
  zipW.open(tmpFile, PR_RDWR);
  testpass(zipW);
  zipW.close();

  // Test the stored data with the zipreader
  var zipR = new ZipReader(tmpFile);
  testpass(zipR);
  zipR.test(FILENAME);
  var stream = Cc["@mozilla.org/scriptableinputstream;1"]
                .createInstance(Ci.nsIScriptableInputStream);
  stream.init(zipR.getInputStream(FILENAME));
  var result = stream.read(DATA.length);
  stream.close();
  zipR.close();

  do_check_eq(result, DATA);
}