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AtomicCountProcedureTest.java
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AtomicCountProcedureTest.java
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/*
* Copyright (c) 2021 The Bank of New York Mellon and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.impl.block.procedure;
import org.eclipse.collections.impl.list.Interval;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class AtomicCountProcedureTest
{
private static final int STRING_LENGTH = 5;
private static final int ZERO = 0;
@Test
public void getCount()
{
AtomicCountProcedure<String> atomicCountProcedure = new AtomicCountProcedure<>(each -> STRING_LENGTH < each.length());
atomicCountProcedure.value("word");
assertEquals(0, atomicCountProcedure.getCount());
atomicCountProcedure.value("america");
assertEquals(1, atomicCountProcedure.getCount());
}
@Test(expected = ArithmeticException.class)
public void predicateException()
{
AtomicCountProcedure<String> atomicCountProcedure = new AtomicCountProcedure<>(each -> STRING_LENGTH < each.length() / ZERO);
atomicCountProcedure.value("word");
}
@Test
public void parallelProcessing()
{
AtomicCountProcedure<Integer> atomicCountProcedure = new AtomicCountProcedure<>(each -> each % 2 == 0);
Interval.oneTo(50_000)
.parallelStream()
.forEach(atomicCountProcedure);
assertEquals(25_000, atomicCountProcedure.getCount());
}
}