/*
* 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.nifi.processors.evtx.parser;
import com.google.common.primitives.UnsignedInteger;
import org.apache.nifi.logging.ComponentLog;
import org.junit.Before;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Random;
import java.util.zip.CRC32;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
public class FileHeaderTest {
private final Random random = new Random();
private FileHeader fileHeader;
private int oldestChunk = 111;
private int currentChunkNumber = 112;
private int nextRecordNumber = 113;
private int headerSize = 114;
private int minorVersion = 1;
private int majorVersion = 3;
private int headerChunkSize = 4096;
private int chunkCount = 0;
private int flags = 340942;
@Before
public void setup() throws IOException {
TestBinaryReaderBuilder testBinaryReaderBuilder = new TestBinaryReaderBuilder();
testBinaryReaderBuilder.putString(FileHeader.ELF_FILE);
testBinaryReaderBuilder.putQWord(oldestChunk);
testBinaryReaderBuilder.putQWord(currentChunkNumber);
testBinaryReaderBuilder.putQWord(nextRecordNumber);
testBinaryReaderBuilder.putDWord(headerSize);
testBinaryReaderBuilder.putWord(minorVersion);
testBinaryReaderBuilder.putWord(majorVersion);
testBinaryReaderBuilder.putWord(headerChunkSize);
testBinaryReaderBuilder.putWord(chunkCount);
byte[] unused = new byte[75];
random.nextBytes(unused);
testBinaryReaderBuilder.put(unused);
testBinaryReaderBuilder.put((byte) 0);
CRC32 crc32 = new CRC32();
crc32.update(testBinaryReaderBuilder.toByteArray());
testBinaryReaderBuilder.putDWord(flags);
testBinaryReaderBuilder.putDWord(UnsignedInteger.valueOf(crc32.getValue()));
fileHeader = new FileHeader(new ByteArrayInputStream(testBinaryReaderBuilder.toByteArray(4096)), mock(ComponentLog.class));
}
@Test
public void testInit() {
assertEquals(FileHeader.ELF_FILE, fileHeader.getMagicString());
assertEquals(oldestChunk, fileHeader.getOldestChunk().intValue());
assertEquals(currentChunkNumber, fileHeader.getCurrentChunkNumber().intValue());
assertEquals(nextRecordNumber, fileHeader.getNextRecordNumber().intValue());
assertEquals(headerSize, fileHeader.getHeaderSize().intValue());
assertEquals(minorVersion, fileHeader.getMinorVersion());
assertEquals(majorVersion, fileHeader.getMajorVersion());
assertEquals(headerChunkSize, fileHeader.getHeaderChunkSize());
assertEquals(chunkCount, fileHeader.getChunkCount());
assertEquals(flags, fileHeader.getFlags().intValue());
}
}