HexStringTest.java
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/*
* Copyright 2014-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.util;
import org.junit.Test;
import com.esotericsoftware.minlog.Log;
import junit.framework.TestCase;
import java.nio.ByteBuffer;
import java.util.Arrays;
import static org.junit.Assert.fail;
/**
* Test of the Hexstring.
*
*/
public class HexStringTest {
@Test
public void testMarshalling() throws Exception {
String dpidStr = "00:00:00:23:20:2d:16:71";
long dpid = HexString.toLong(dpidStr);
String testStr = HexString.toHexString(dpid);
TestCase.assertEquals(dpidStr, testStr);
}
@Test
public void testToLong() {
String dpidStr = "3e:1f:01:fc:72:8c:63:31";
long valid = 0x3e1f01fc728c6331L;
long testLong = HexString.toLong(dpidStr);
TestCase.assertEquals(valid, testLong);
}
@Test
public void testToLongMsb() {
String dpidStr = "ca:7c:5e:d1:64:7a:95:9b";
long valid = -3856102927509056101L;
long testLong = HexString.toLong(dpidStr);
TestCase.assertEquals(valid, testLong);
}
@Test
public void testFromHexString() {
String dpidStr = "3e:1f:01:fc:72:8c:63:31";
String dpidStrNoSep = "3e1f01fc728c6331";
long valid = 0x3e1f01fc728c6331L;
byte[] validBytes = ByteBuffer.allocate(Long.BYTES).putLong(valid).array();
byte[] testBytes = HexString.fromHexString(dpidStr);
byte[] testBytesNoSep = HexString.fromHexString(dpidStrNoSep, null);
byte[] testBytesUCase = HexString.fromHexString(dpidStr.toUpperCase());
byte[] testBytesUCaseNoSep = HexString.fromHexString(dpidStrNoSep.toUpperCase(), null);
TestCase.assertTrue(Arrays.equals(validBytes, testBytes));
TestCase.assertTrue(Arrays.equals(validBytes, testBytesNoSep));
TestCase.assertTrue(Arrays.equals(validBytes, testBytesUCase));
TestCase.assertTrue(Arrays.equals(validBytes, testBytesUCaseNoSep));
}
@Test
public void testToLongError() {
String dpidStr = "09:08:07:06:05:04:03:02:01";
try {
HexString.toLong(dpidStr);
fail("HexString.toLong() should have thrown a NumberFormatException");
} catch (NumberFormatException expected) {
Log.info("HexString.toLong() have thrown a NumberFormatException");
}
}
@Test
public void testToStringBytes() {
byte[] dpid = {0, 0, 0, 0, 0, 0, 0, -1 };
String valid = "00:00:00:00:00:00:00:ff";
String testString = HexString.toHexString(dpid);
TestCase.assertEquals(valid, testString);
}
@Test
public void testFromHexStringError() {
String invalidStr = "00:00:00:00:00:00:ffff";
try {
HexString.fromHexString(invalidStr);
fail("HexString.fromHexString() should have thrown a NumberFormatException");
} catch (NumberFormatException expected) {
Log.info("HexString.toLong() have thrown a NumberFormatException");
}
}
}