package org.apache.cassandra.service;
/*
*
* 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.
*
*/
import java.util.Arrays;
import org.apache.cassandra.SchemaLoader;
import org.junit.Test;
import org.apache.cassandra.db.ColumnFamily;
import org.apache.cassandra.db.TimestampClock;
import static org.apache.cassandra.db.TableTest.assertColumns;
import static org.apache.cassandra.Util.column;
import static junit.framework.Assert.assertNull;
public class ReadResponseResolverTest extends SchemaLoader
{
@Test
public void testResolveSupersetNewer()
{
ColumnFamily cf1 = ColumnFamily.create("Keyspace1", "Standard1");
cf1.addColumn(column("c1", "v1", new TimestampClock(0)));
ColumnFamily cf2 = ColumnFamily.create("Keyspace1", "Standard1");
cf2.addColumn(column("c1", "v2", new TimestampClock(1)));
ColumnFamily resolved = ReadResponseResolver.resolveSuperset(Arrays.asList(cf1, cf2));
assertColumns(resolved, "c1");
assertColumns(ColumnFamily.diff(cf1, resolved), "c1");
assertNull(ColumnFamily.diff(cf2, resolved));
}
@Test
public void testResolveSupersetDisjoint()
{
ColumnFamily cf1 = ColumnFamily.create("Keyspace1", "Standard1");
cf1.addColumn(column("c1", "v1", new TimestampClock(0)));
ColumnFamily cf2 = ColumnFamily.create("Keyspace1", "Standard1");
cf2.addColumn(column("c2", "v2", new TimestampClock(1)));
ColumnFamily resolved = ReadResponseResolver.resolveSuperset(Arrays.asList(cf1, cf2));
assertColumns(resolved, "c1", "c2");
assertColumns(ColumnFamily.diff(cf1, resolved), "c2");
assertColumns(ColumnFamily.diff(cf2, resolved), "c1");
}
@Test
public void testResolveSupersetNullOne()
{
ColumnFamily cf2 = ColumnFamily.create("Keyspace1", "Standard1");
cf2.addColumn(column("c2", "v2", new TimestampClock(1)));
ColumnFamily resolved = ReadResponseResolver.resolveSuperset(Arrays.asList(null, cf2));
assertColumns(resolved, "c2");
assertColumns(ColumnFamily.diff(null, resolved), "c2");
assertNull(ColumnFamily.diff(cf2, resolved));
}
@Test
public void testResolveSupersetNullTwo()
{
ColumnFamily cf1 = ColumnFamily.create("Keyspace1", "Standard1");
cf1.addColumn(column("c1", "v1", new TimestampClock(0)));
ColumnFamily resolved = ReadResponseResolver.resolveSuperset(Arrays.asList(cf1, null));
assertColumns(resolved, "c1");
assertNull(ColumnFamily.diff(cf1, resolved));
assertColumns(ColumnFamily.diff(null, resolved), "c1");
}
@Test
public void testResolveSupersetNullBoth()
{
assertNull(ReadResponseResolver.resolveSuperset(Arrays.<ColumnFamily>asList(null, null)));
}
}