/*
* 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.commons.compress.archivers.zip;
import static org.apache.commons.compress.AbstractTestCase.getFile;
import static org.junit.Assert.*;
import java.io.ByteArrayOutputStream;
import java.util.zip.ZipEntry;
import org.junit.Test;
/**
* JUnit testcases for org.apache.commons.compress.archivers.zip.ZipEntry.
*
*/
public class ZipArchiveEntryTest {
/**
* test handling of extra fields
*/
@Test
public void testExtraFields() {
final AsiExtraField a = new AsiExtraField();
a.setDirectory(true);
a.setMode(0755);
final UnrecognizedExtraField u = new UnrecognizedExtraField();
u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
u.setLocalFileDataData(new byte[0]);
final ZipArchiveEntry ze = new ZipArchiveEntry("test/");
ze.setExtraFields(new ZipExtraField[] {a, u});
final byte[] data1 = ze.getExtra();
ZipExtraField[] result = ze.getExtraFields();
assertEquals("first pass", 2, result.length);
assertSame(a, result[0]);
assertSame(u, result[1]);
final UnrecognizedExtraField u2 = new UnrecognizedExtraField();
u2.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
u2.setLocalFileDataData(new byte[] {1});
ze.addExtraField(u2);
final byte[] data2 = ze.getExtra();
result = ze.getExtraFields();
assertEquals("second pass", 2, result.length);
assertSame(a, result[0]);
assertSame(u2, result[1]);
assertEquals("length second pass", data1.length+1, data2.length);
final UnrecognizedExtraField u3 = new UnrecognizedExtraField();
u3.setHeaderId(new ZipShort(2));
u3.setLocalFileDataData(new byte[] {1});
ze.addExtraField(u3);
result = ze.getExtraFields();
assertEquals("third pass", 3, result.length);
ze.removeExtraField(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
final byte[] data3 = ze.getExtra();
result = ze.getExtraFields();
assertEquals("fourth pass", 2, result.length);
assertSame(a, result[0]);
assertSame(u3, result[1]);
assertEquals("length fourth pass", data2.length, data3.length);
try {
ze.removeExtraField(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
fail("should be no such element");
} catch (final java.util.NoSuchElementException nse) {
}
}
/**
* test handling of extra fields via central directory
*/
@Test
public void testExtraFieldMerging() {
final AsiExtraField a = new AsiExtraField();
a.setDirectory(true);
a.setMode(0755);
final UnrecognizedExtraField u = new UnrecognizedExtraField();
u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
u.setLocalFileDataData(new byte[0]);
final ZipArchiveEntry ze = new ZipArchiveEntry("test/");
ze.setExtraFields(new ZipExtraField[] {a, u});
// merge
// Header-ID 1 + length 1 + one byte of data
final byte[] b = ExtraFieldUtilsTest.UNRECOGNIZED_HEADER.getBytes();
ze.setCentralDirectoryExtra(new byte[] {b[0], b[1], 1, 0, 127});
ZipExtraField[] result = ze.getExtraFields();
assertEquals("first pass", 2, result.length);
assertSame(a, result[0]);
assertEquals(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER,
result[1].getHeaderId());
assertEquals(new ZipShort(0), result[1].getLocalFileDataLength());
assertEquals(new ZipShort(1), result[1].getCentralDirectoryLength());
// add new
// Header-ID 2 + length 0
ze.setCentralDirectoryExtra(new byte[] {2, 0, 0, 0});
result = ze.getExtraFields();
assertEquals("second pass", 3, result.length);
// merge
// Header-ID 2 + length 1 + one byte of data
ze.setExtra(new byte[] {2, 0, 1, 0, 127});
result = ze.getExtraFields();
assertEquals("third pass", 3, result.length);
assertSame(a, result[0]);
assertEquals(new ZipShort(2), result[2].getHeaderId());
assertEquals(new ZipShort(1), result[2].getLocalFileDataLength());
assertEquals(new ZipShort(0), result[2].getCentralDirectoryLength());
}
/**
* test handling of extra fields
*/
@Test
public void testAddAsFirstExtraField() {
final AsiExtraField a = new AsiExtraField();
a.setDirectory(true);
a.setMode(0755);
final UnrecognizedExtraField u = new UnrecognizedExtraField();
u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
u.setLocalFileDataData(new byte[0]);
final ZipArchiveEntry ze = new ZipArchiveEntry("test/");
ze.setExtraFields(new ZipExtraField[] {a, u});
final byte[] data1 = ze.getExtra();
final UnrecognizedExtraField u2 = new UnrecognizedExtraField();
u2.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER);
u2.setLocalFileDataData(new byte[] {1});
ze.addAsFirstExtraField(u2);
final byte[] data2 = ze.getExtra();
ZipExtraField[] result = ze.getExtraFields();
assertEquals("second pass", 2, result.length);
assertSame(u2, result[0]);
assertSame(a, result[1]);
assertEquals("length second pass", data1.length + 1, data2.length);
final UnrecognizedExtraField u3 = new UnrecognizedExtraField();
u3.setHeaderId(new ZipShort(2));
u3.setLocalFileDataData(new byte[] {1});
ze.addAsFirstExtraField(u3);
result = ze.getExtraFields();
assertEquals("third pass", 3, result.length);
assertSame(u3, result[0]);
assertSame(u2, result[1]);
assertSame(a, result[2]);
}
@Test
public void testUnixMode() {
ZipArchiveEntry ze = new ZipArchiveEntry("foo");
assertEquals(0, ze.getPlatform());
ze.setUnixMode(0755);
assertEquals(3, ze.getPlatform());
assertEquals(0755,
(ze.getExternalAttributes() >> 16) & 0xFFFF);
assertEquals(0, ze.getExternalAttributes() & 0xFFFF);
ze.setUnixMode(0444);
assertEquals(3, ze.getPlatform());
assertEquals(0444,
(ze.getExternalAttributes() >> 16) & 0xFFFF);
assertEquals(1, ze.getExternalAttributes() & 0xFFFF);
ze = new ZipArchiveEntry("foo/");
assertEquals(0, ze.getPlatform());
ze.setUnixMode(0777);
assertEquals(3, ze.getPlatform());
assertEquals(0777,
(ze.getExternalAttributes() >> 16) & 0xFFFF);
assertEquals(0x10, ze.getExternalAttributes() & 0xFFFF);
ze.setUnixMode(0577);
assertEquals(3, ze.getPlatform());
assertEquals(0577,
(ze.getExternalAttributes() >> 16) & 0xFFFF);
assertEquals(0x11, ze.getExternalAttributes() & 0xFFFF);
}
/**
* Test case for
* <a href="https://issues.apache.org/jira/browse/COMPRESS-93"
* >COMPRESS-93</a>.
*/
@Test
public void testCompressionMethod() throws Exception {
final ZipArchiveOutputStream zos =
new ZipArchiveOutputStream(new ByteArrayOutputStream());
final ZipArchiveEntry entry = new ZipArchiveEntry("foo");
assertEquals(-1, entry.getMethod());
assertFalse(zos.canWriteEntryData(entry));
entry.setMethod(ZipEntry.STORED);
assertEquals(ZipEntry.STORED, entry.getMethod());
assertTrue(zos.canWriteEntryData(entry));
entry.setMethod(ZipEntry.DEFLATED);
assertEquals(ZipEntry.DEFLATED, entry.getMethod());
assertTrue(zos.canWriteEntryData(entry));
// Test the unsupported "imploded" compression method (6)
entry.setMethod(6);
assertEquals(6, entry.getMethod());
assertFalse(zos.canWriteEntryData(entry));
zos.close();
}
/**
* Test case for
* <a href="https://issues.apache.org/jira/browse/COMPRESS-94"
* >COMPRESS-94</a>.
*/
@Test
public void testNotEquals() {
final ZipArchiveEntry entry1 = new ZipArchiveEntry("foo");
final ZipArchiveEntry entry2 = new ZipArchiveEntry("bar");
assertFalse(entry1.equals(entry2));
}
/**
* Tests comment's influence on equals comparisons.
* @see "https://issues.apache.org/jira/browse/COMPRESS-187"
*/
@Test
public void testNullCommentEqualsEmptyComment() {
final ZipArchiveEntry entry1 = new ZipArchiveEntry("foo");
final ZipArchiveEntry entry2 = new ZipArchiveEntry("foo");
final ZipArchiveEntry entry3 = new ZipArchiveEntry("foo");
entry1.setComment(null);
entry2.setComment("");
entry3.setComment("bar");
assertEquals(entry1, entry2);
assertFalse(entry1.equals(entry3));
assertFalse(entry2.equals(entry3));
}
@Test
public void testCopyConstructor() throws Exception {
final ZipArchiveEntry archiveEntry = new ZipArchiveEntry("fred");
archiveEntry.setUnixMode(0664);
archiveEntry.setMethod(ZipEntry.DEFLATED);
archiveEntry.getGeneralPurposeBit().useStrongEncryption(true);
final ZipArchiveEntry copy = new ZipArchiveEntry(archiveEntry);
assertEquals(archiveEntry, copy);
}
/**
* @see "https://issues.apache.org/jira/browse/COMPRESS-379"
*/
@Test
public void isUnixSymlinkIsFalseIfMoreThanOneFlagIsSet() throws Exception {
try (ZipFile zf = new ZipFile(getFile("COMPRESS-379.jar"))) {
ZipArchiveEntry ze = zf.getEntry("META-INF/maven/");
assertFalse(ze.isUnixSymlink());
}
}
@Test
public void testIsUnixSymlink() {
ZipArchiveEntry ze = new ZipArchiveEntry("foo");
ze.setUnixMode(UnixStat.LINK_FLAG);
assertTrue(ze.isUnixSymlink());
ze.setUnixMode(UnixStat.LINK_FLAG | UnixStat.DIR_FLAG);
assertFalse(ze.isUnixSymlink());
}
}