// Copyright 2015 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.android.ziputils;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENATT;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENATX;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENCRC;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENDSK;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENFLG;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENHOW;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENLEN;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENOFF;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENSIG;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENSIZ;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENTIM;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENVEM;
import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENVER;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertEquals;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.zip.ZipInputStream;
/**
* Unit tests for {@link DirectoryEntry}.
*/
@RunWith(JUnit4.class)
public class DirectoryEntryTest {
/**
* Test of viewOf method, of class DirectoryEntry.
*/
@Test
public void testViewOf() {
ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
for (int i = 0; i < 100; i++) {
buffer.put((byte) i);
}
int offset = 20;
int filenameLength = 10;
int extraLength = 6;
int commentLength = 8;
int marker = DirectoryEntry.SIGNATURE;
buffer.putShort(offset + ZipInputStream.CENNAM, (short) filenameLength); // filename length
buffer.putShort(offset + ZipInputStream.CENEXT, (short) extraLength); // extra data length
buffer.putShort(offset + ZipInputStream.CENCOM, (short) commentLength); // comment length
buffer.putInt(20, marker); // any marker
buffer.position(offset);
DirectoryEntry view = DirectoryEntry.viewOf(buffer);
int expMark = (int) ZipInputStream.CENSIG;
int expSize = ZipInputStream.CENHDR + filenameLength + extraLength + commentLength;
int expPos = 0;
assertEquals("not based at current position", expMark, view.get(CENSIG));
assertEquals("Not slice with position 0", expPos, view.buffer.position());
assertEquals("Not sized with comment", expSize, view.getSize());
assertEquals("Not limited to size", expSize, view.buffer.limit());
}
/**
* Test of view method, of class DirectoryEntry.
*/
@Test
public void testView_3Args() {
String filename = "pkg/foo.class";
String comment = "got milk";
byte[] extraData = { 1, 2, 3, 4, 5, 6, 7, 8};
int expSize = ZipInputStream.CENHDR + filename.getBytes(UTF_8).length
+ extraData.length + comment.getBytes(UTF_8).length;
int expPos = 0;
DirectoryEntry view = DirectoryEntry.allocate(filename, extraData, comment);
assertEquals("Incorrect filename", filename, view.getFilename());
Assert.assertArrayEquals("Incorrect extra data", extraData, view.getExtraData());
assertEquals("Incorrect comment", comment, view.getComment());
assertEquals("Not at position 0", expPos, view.buffer.position());
assertEquals("Not sized correctly", expSize, view.getSize());
assertEquals("Not limited to size", expSize, view.buffer.limit());
}
/**
* Test of view method, of class DirectoryEntry.
*/
@Test
public void testView_4Args() {
ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
for (int i = 0; i < 100; i++) {
buffer.put((byte) i);
}
int offset = 20;
buffer.position(offset);
String filename = "pkg/foo.class";
byte[] extraData = { 1, 2, 3, 4, 5};
String comment = "c";
int expMark = (int) ZipInputStream.CENSIG;
int expSize = 46 + filename.getBytes(UTF_8).length + extraData.length
+ comment.getBytes(UTF_8).length;
int expPos = 0;
DirectoryEntry view = DirectoryEntry.view(buffer, filename, extraData, comment);
assertEquals("not based at current position", expMark, view.get(CENSIG));
assertEquals("Not slice with position 0", expPos, view.buffer.position());
assertEquals("Not sized with filename", expSize, view.getSize());
assertEquals("Not limited to size", expSize, view.buffer.limit());
assertEquals("Incorrect filename", filename, view.getFilename());
Assert.assertArrayEquals("Incorrect extra data", extraData, view.getExtraData());
assertEquals("Incorrect comment", comment, view.getComment());
}
/**
* Test of copy method, of class DirectoryEntry.
*/
@Test
public void testCopy() {
String filename = "pkg/foo.class";
byte[] extraData = {};
String comment = "always comment!";
ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
DirectoryEntry view = DirectoryEntry.allocate(filename, extraData, comment);
view.copy(buffer);
int expSize = view.getSize();
assertEquals("buffer not advanced as expected", expSize, buffer.position());
buffer.position(0);
DirectoryEntry clone = DirectoryEntry.viewOf(buffer);
assertEquals("Fail to copy mark", view.get(CENSIG), clone.get(CENSIG));
assertEquals("Fail to copy comment", view.getFilename(), clone.getFilename());
Assert.assertArrayEquals("Fail to copy comment", view.getExtraData(), clone.getExtraData());
assertEquals("Fail to copy comment", view.getComment(), clone.getComment());
}
/**
* Test of with and get methods.
*/
@Test
public void testWithAndGetMethods() {
int crc = 0x12345678;
int compressed = 0x357f1d5;
int uncompressed = 0x74813159;
short flags = 0x7a61;
short method = 0x3b29;
int time = 0x12312345;
short version = 0x1234;
short versionMadeBy = 0x27a1;
short disk = 0x5a78;
int extAttr = 0x73b27a15;
short intAttr = 0x37cc;
int offset = 0x74c93ac1;
DirectoryEntry view = DirectoryEntry.allocate("pkg/foo.class", null, "")
.set(CENCRC, crc)
.set(CENSIZ, compressed)
.set(CENLEN, uncompressed)
.set(CENFLG, flags)
.set(CENHOW, method)
.set(CENTIM, time)
.set(CENVER, version)
.set(CENVEM, versionMadeBy)
.set(CENDSK, disk)
.set(CENATX, extAttr)
.set(CENATT, intAttr)
.set(CENOFF, offset);
assertEquals("CRC", crc, view.get(CENCRC));
assertEquals("Compressed size", compressed, view.get(CENSIZ));
assertEquals("Uncompressed size", uncompressed, view.get(CENLEN));
assertEquals("Flags", flags, view.get(CENFLG));
assertEquals("Method", method, view.get(CENHOW));
assertEquals("Modified time", time, view.get(CENTIM));
assertEquals("Version needed", version, view.get(CENVER));
assertEquals("Version made by", versionMadeBy, view.get(CENVEM));
assertEquals("Disk", disk, view.get(CENDSK));
assertEquals("External attributes", extAttr, view.get(CENATX));
assertEquals("Internal attributes", intAttr, view.get(CENATT));
assertEquals("Offset", offset, view.get(CENOFF));
}
}