/*
* Copyright (C) 2012-2015 DataStax Inc.
*
* 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 com.datastax.driver.core;
import com.datastax.driver.core.utils.Bytes;
import org.testng.annotations.Test;
import java.nio.ByteBuffer;
import java.util.Set;
import static com.datastax.driver.core.Assertions.assertThat;
@CCMConfig(
// force the initial token to a non-min value to validate that the single range will always be ]minToken, minToken]
config = "initial_token:1",
clusterProvider = "createClusterBuilderNoDebouncing"
)
public class SingleTokenIntegrationTest extends CCMTestsSupport {
/**
* JAVA-684: Empty TokenRange returned in a one token cluster
*/
@Test(groups = "short")
public void should_return_single_non_empty_range_when_cluster_has_one_single_token() {
cluster().manager.controlConnection.refreshNodeListAndTokenMap();
Metadata metadata = cluster().getMetadata();
Set<TokenRange> tokenRanges = metadata.getTokenRanges();
assertThat(tokenRanges).hasSize(1);
TokenRange tokenRange = tokenRanges.iterator().next();
assertThat(tokenRange)
.startsWith(Token.M3PToken.FACTORY.minToken())
.endsWith(Token.M3PToken.FACTORY.minToken())
.isNotEmpty()
.isNotWrappedAround();
Set<Host> hostsForRange = metadata.getReplicas(keyspace, tokenRange);
Host host1 = TestUtils.findHost(cluster(), 1);
assertThat(hostsForRange).containsOnly(host1);
ByteBuffer randomPartitionKey = Bytes.fromHexString("0xCAFEBABE");
Set<Host> hostsForKey = metadata.getReplicas(keyspace, randomPartitionKey);
assertThat(hostsForKey).containsOnly(host1);
Set<TokenRange> rangesForHost = metadata.getTokenRanges(keyspace, host1);
assertThat(rangesForHost).containsOnly(tokenRange);
}
}