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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed 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 libcore.java.util.zip;
import junit.framework.TestCase;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.zip.Zip64;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
public class Zip64Test extends TestCase {
// We shouldn't attempt to look inside the extended info if we have valid fields
// in the regular file header / central directory entry.
public void testParseZip64ExtendedInfo_noFieldsPresent() throws Exception {
ZipEntry ze = createZipEntry(null, 100, 200, ZipEntry.STORED, 300);
Zip64.parseZip64ExtendedInfo(ze, false /* fromCentralDirectory */);
Zip64.parseZip64ExtendedInfo(ze, true /* fromCentralDirectory */);
}
// We *should* attempt to look in the extended info if the local file header / central
// directory entry don't have the correct values.
public void testParseZip64ExtendedInfo_missingExtendedInfo() throws Exception {
ZipEntry ze = createZipEntry(null, Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE,
Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE, ZipEntry.STORED, 300);
try {
Zip64.parseZip64ExtendedInfo(ze, false /* fromCentralDirectory */);
fail();
} catch (ZipException expected) {
}
try {
Zip64.parseZip64ExtendedInfo(ze, true /* fromCentralDirectory */);
fail();
} catch (ZipException expected) {
}
}
// Test the case where the compressed / uncompressed sizes are in the extended info
// but the header offset isn't.
public void testParseZip64ExtendedInfo_partialInfo() throws Exception {
byte[] extras = new byte[20];
ByteBuffer buf = ByteBuffer.wrap(extras);
buf.order(ByteOrder.LITTLE_ENDIAN);
buf.putShort((short) 0x0001);
buf.putShort((short) 16);
buf.putLong(50);
buf.putLong(100);
ZipEntry ze = createZipEntry(extras, Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE,
Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE, ZipEntry.STORED, 300);
Zip64.parseZip64ExtendedInfo(ze, false /*fromCentralDirectory */);
assertEquals(50, ze.getSize());
assertEquals(100, ze.getCompressedSize());
ze = createZipEntry(extras, Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE,
Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE, ZipEntry.STORED, 300);
Zip64.parseZip64ExtendedInfo(ze, true /*fromCentralDirectory */);
assertEquals(50, ze.getSize());
assertEquals(100, ze.getCompressedSize());
}
public void testInsertZip64ExtendedInfo() throws Exception {
ZipEntry ze = createZipEntry(null, Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE + 300,
Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE + 500, ZipEntry.STORED, 300);
Zip64.insertZip64ExtendedInfoToExtras(ze);
assertNotNull(ze.getExtra());
ByteBuffer buf = ByteBuffer.wrap(ze.getExtra());
buf.order(ByteOrder.LITTLE_ENDIAN);
assertEquals(0x0001, buf.getShort());
assertEquals(24, buf.getShort());
assertEquals(Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE + 300, buf.getLong());
assertEquals(Zip64.MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE + 500, buf.getLong());
}
private static ZipEntry createZipEntry(byte[] extras, long size, long compressedSize,
int compressionMethod, long headerOffset) {
return new ZipEntry("name", "comment", 42 /* crc */, compressedSize, size,
compressionMethod, 42 /* time */, 42 /* modDate */, extras, headerOffset,
42 /* data offset */);
}
}
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