| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2014 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | * |
| 9 | * Contributors: |
| 10 | * Vincent Perot - Initial API and implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.tracecompass.pcap.core.tests.file; |
| 14 | |
| 15 | import static org.junit.Assert.assertEquals; |
| 16 | import static org.junit.Assume.assumeTrue; |
| 17 | |
| 18 | import java.io.IOException; |
| 19 | import java.nio.ByteOrder; |
| 20 | import java.nio.file.Path; |
| 21 | |
| 22 | import org.eclipse.tracecompass.internal.pcap.core.packet.BadPacketException; |
| 23 | import org.eclipse.tracecompass.internal.pcap.core.trace.BadPcapFileException; |
| 24 | import org.eclipse.tracecompass.internal.pcap.core.trace.PcapFile; |
| 25 | import org.eclipse.tracecompass.pcap.core.tests.shared.PcapTestTrace; |
| 26 | import org.junit.Test; |
| 27 | |
| 28 | /** |
| 29 | * JUnit Class that tests whether the Pcap parser can read both big endian and |
| 30 | * little endian files. |
| 31 | * |
| 32 | * @author Vincent Perot |
| 33 | */ |
| 34 | public class PcapFileEndiannessTest { |
| 35 | |
| 36 | /** |
| 37 | * Test that verify that two files with different endianness contain the |
| 38 | * same packets. |
| 39 | * |
| 40 | * @throws BadPcapFileException |
| 41 | * Thrown when the file is erroneous. Fails the test. |
| 42 | * @throws IOException |
| 43 | * Thrown when an IO error occurs. Fails the test. |
| 44 | * @throws BadPacketException |
| 45 | * Thrown when a packet is erroneous. Fails the test. |
| 46 | */ |
| 47 | @Test |
| 48 | public void EndiannessTest() throws IOException, BadPcapFileException, BadPacketException { |
| 49 | PcapTestTrace trace = PcapTestTrace.SHORT_LITTLE_ENDIAN; |
| 50 | assumeTrue(trace.exists()); |
| 51 | Path path1 = trace.getPath(); |
| 52 | |
| 53 | trace = PcapTestTrace.SHORT_LITTLE_ENDIAN; |
| 54 | assumeTrue(trace.exists()); |
| 55 | Path path2 = PcapTestTrace.SHORT_BIG_ENDIAN.getPath(); |
| 56 | |
| 57 | try (PcapFile littleEndian = new PcapFile(path1); |
| 58 | PcapFile bigEndian = new PcapFile(path2);) { |
| 59 | assertEquals(ByteOrder.BIG_ENDIAN, bigEndian.getByteOrder()); |
| 60 | assertEquals(ByteOrder.LITTLE_ENDIAN, littleEndian.getByteOrder()); |
| 61 | while (littleEndian.hasNextPacket() && bigEndian.hasNextPacket()) { |
| 62 | assertEquals(littleEndian.parseNextPacket(), bigEndian.parseNextPacket()); |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | } |