Java tutorial
/* * Copyright 2015-present Open Networking Laboratory * * 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 org.onlab.packet; import org.apache.commons.lang3.StringUtils; import org.junit.Before; import org.junit.Test; import java.nio.ByteBuffer; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; /** * Unit tests for the ICMP class. */ public class ICMPTest { private Deserializer<ICMP> deserializer; private byte icmpType = ICMP.TYPE_ECHO_REQUEST; private byte icmpCode = 4; private short checksum = 870; private byte[] headerBytes; @Before public void setUp() throws Exception { deserializer = ICMP.deserializer(); ByteBuffer bb = ByteBuffer.allocate(ICMP.ICMP_HEADER_LENGTH); bb.put(icmpType); bb.put(icmpCode); bb.putShort(checksum); headerBytes = bb.array(); } @Test public void testDeserializeBadInput() throws Exception { PacketTestUtils.testDeserializeBadInput(deserializer); } @Test public void testDeserializeTruncated() throws Exception { PacketTestUtils.testDeserializeTruncated(deserializer, headerBytes); } /** * Tests deserialize and getters. */ @Test public void testDeserialize() throws Exception { ICMP icmp = deserializer.deserialize(headerBytes, 0, headerBytes.length); assertEquals(icmpType, icmp.getIcmpType()); assertEquals(icmpCode, icmp.getIcmpCode()); assertEquals(checksum, icmp.getChecksum()); } /** * Tests toString. */ @Test public void testToStringIcmp() throws Exception { ICMP icmp = deserializer.deserialize(headerBytes, 0, headerBytes.length); String str = icmp.toString(); assertTrue(StringUtils.contains(str, "icmpType=" + icmpType)); assertTrue(StringUtils.contains(str, "icmpCode=" + icmpCode)); assertTrue(StringUtils.contains(str, "checksum=" + checksum)); } }