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MultisetSerializerTest.java
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MultisetSerializerTest.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.flink.api.common.typeutils.base;
import org.apache.commons.collections4.multiset.AbstractMultiSet;
import org.apache.commons.collections4.multiset.HashMultiSet;
import org.apache.flink.api.common.typeutils.SerializerTestBase;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import java.util.Random;
/**
* Test for {@link MultisetSerializer}.
*/
public class MultisetSerializerTest extends SerializerTestBase<AbstractMultiSet<Long>> {
@Override
protected TypeSerializer<AbstractMultiSet<Long>> createSerializer() {
return new MultisetSerializer(LongSerializer.INSTANCE);
}
@Override
protected int getLength() {
return -1;
}
@SuppressWarnings("unchecked")
@Override
protected Class<AbstractMultiSet<Long>> getTypeClass() {
return (Class<AbstractMultiSet<Long>>) (Class<?>) AbstractMultiSet.class;
}
@SuppressWarnings({"rawtypes", "unchecked"})
@Override
protected AbstractMultiSet<Long>[] getTestData() {
final Random rnd = new Random(123654789);
// empty Multisets
final AbstractMultiSet<Long> set1 = new HashMultiSet<>();
// single element Multisets
final AbstractMultiSet<Long> set2 = new HashMultiSet<>();
set2.add(12345L);
// larger Multisets
final AbstractMultiSet<Long> set3 = new HashMultiSet<>();
for (int i = 0; i < rnd.nextInt(200); i++) {
set3.add(rnd.nextLong());
}
return (AbstractMultiSet<Long>[]) new AbstractMultiSet[]{
set1, set2, set3
};
}
}