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XidCodecSupportTest.java
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XidCodecSupportTest.java
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/*
* 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.activemq.artemis.util;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQBuffers;
import org.apache.activemq.artemis.core.transaction.impl.XidImpl;
import org.apache.activemq.artemis.utils.UUIDGenerator;
import org.apache.activemq.artemis.utils.XidCodecSupport;
import org.apache.activemq.artemis.api.core.ActiveMQInvalidBufferException;
import org.junit.Test;
import javax.transaction.xa.Xid;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.fail;
public class XidCodecSupportTest {
private static final Xid VALID_XID =
new XidImpl("xa1".getBytes(), 1, UUIDGenerator.getInstance().generateStringUUID().getBytes());
@Test
public void testEncodeDecode() {
final ActiveMQBuffer buffer = ActiveMQBuffers.dynamicBuffer(0);
XidCodecSupport.encodeXid(VALID_XID, buffer);
assertThat(buffer.readableBytes(), equalTo(51)); // formatId(4) + branchQualLength(4) + branchQual(3) +
// globalTxIdLength(4) + globalTx(36)
final Xid readXid = XidCodecSupport.decodeXid(buffer);
assertThat(readXid, equalTo(VALID_XID));
}
@Test
public void testNegativeLength() {
final ActiveMQBuffer buffer = ActiveMQBuffers.dynamicBuffer(0);
XidCodecSupport.encodeXid(VALID_XID, buffer);
// Alter branchQualifierLength to be negative
buffer.setByte(4, (byte) 0xFF);
try {
XidCodecSupport.decodeXid(buffer);
fail("Should have thrown");
} catch (ActiveMQInvalidBufferException ex) {
return;
}
fail("should have thrown exception");
}
@Test(expected = ActiveMQInvalidBufferException.class)
public void testOverflowLength() {
final ActiveMQBuffer buffer = ActiveMQBuffers.dynamicBuffer(0);
XidCodecSupport.encodeXid(VALID_XID, buffer);
// Alter globalTxIdLength to be too big
buffer.setByte(11, (byte) 0x0C);
XidCodecSupport.decodeXid(buffer);
}
}