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CASTest.java
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101 lines (93 loc) · 3.13 KB
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/*
* Copyright 2021 TiKV Project Authors.
*
* 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.tikv.raw;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import com.google.protobuf.ByteString;
import java.util.Optional;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.tikv.BaseRawKVTest;
import org.tikv.common.TiConfiguration;
import org.tikv.common.TiSession;
import org.tikv.common.exception.RawCASConflictException;
public class CASTest extends BaseRawKVTest {
private RawKVClient client;
private boolean initialized;
private static final Logger logger = LoggerFactory.getLogger(RawKVClientTest.class);
private TiSession session;
@Before
public void setup() {
try {
TiConfiguration conf = createTiConfiguration();
conf.setEnableAtomicForCAS(true);
session = TiSession.create(conf);
initialized = false;
if (client == null) {
client = session.createRawClient();
}
initialized = true;
} catch (Exception e) {
logger.warn(
"Cannot initialize raw client, please check whether TiKV is running. Test skipped.", e);
}
}
@After
public void tearDown() throws Exception {
if (session != null) {
session.close();
}
}
@Test
public void rawCASTest() {
ByteString key = ByteString.copyFromUtf8("key_atomic");
ByteString value = ByteString.copyFromUtf8("value");
ByteString value2 = ByteString.copyFromUtf8("value2");
client.delete(key);
client.compareAndSet(key, Optional.empty(), value);
Assert.assertEquals(value, client.get(key).get());
try {
client.compareAndSet(key, Optional.empty(), value2);
Assert.fail("compareAndSet should fail.");
} catch (RawCASConflictException err) {
Assert.assertEquals(value, err.getPrevValue().get());
}
}
@Test
public void rawPutIfAbsentTest() {
long ttl = 10;
ByteString key = ByteString.copyFromUtf8("key_atomic");
ByteString value = ByteString.copyFromUtf8("value");
ByteString value2 = ByteString.copyFromUtf8("value2");
client.delete(key);
Optional<ByteString> res1 = client.putIfAbsent(key, value, ttl);
assertFalse(res1.isPresent());
Optional<ByteString> res2 = client.putIfAbsent(key, value2, ttl);
assertEquals(res2.get(), value);
try {
Thread.sleep(ttl * 1000 + 100);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
Optional<ByteString> res3 = client.putIfAbsent(key, value, ttl);
assertFalse(res3.isPresent());
}
}