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MaxByProcedureTest.java
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MaxByProcedureTest.java
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/*
* Copyright (c) 2021 The Bank of New York Mellon.
* 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 java.util.Optional;
import org.eclipse.collections.impl.block.factory.Functions;
import org.junit.Assert;
import org.junit.Test;
public class MaxByProcedureTest
{
@Test
public void visitedAtLeastOnce()
{
MaxByProcedure<Integer, Integer> procedure = new MaxByProcedure<>(Functions.getPassThru());
Assert.assertFalse(procedure.isVisitedAtLeastOnce());
procedure.value(1);
Assert.assertTrue(procedure.isVisitedAtLeastOnce());
procedure.value(2);
Assert.assertTrue(procedure.isVisitedAtLeastOnce());
}
@Test
public void getResultOptional()
{
MaxByProcedure<Integer, Integer> procedure = new MaxByProcedure<>(Functions.getPassThru());
Assert.assertFalse(procedure.getResultOptional().isPresent());
procedure.value(2);
Optional<Integer> resultOptional = procedure.getResultOptional();
Assert.assertTrue(resultOptional.isPresent());
Assert.assertEquals((Integer) 2, resultOptional.get());
procedure.value(1);
Optional<Integer> resultOptional2 = procedure.getResultOptional();
Assert.assertTrue(resultOptional2.isPresent());
Assert.assertEquals((Integer) 2, resultOptional2.get());
}
@Test
public void value()
{
MaxByProcedure<Integer, Integer> procedure = new MaxByProcedure<>(Functions.getPassThru());
Integer first = new Integer(1);
procedure.value(first);
Assert.assertSame(first, procedure.getResult());
Integer second = new Integer(1);
procedure.value(second);
Assert.assertSame(first, procedure.getResult());
Integer third = new Integer(3);
procedure.value(third);
Assert.assertSame(third, procedure.getResult());
Integer fourth = new Integer(0);
procedure.value(fourth);
Assert.assertSame(third, procedure.getResult());
}
}