/*******************************************************************************
* Copyright (c) 2017 École Polytechnique de Montréal
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.tracecompass.tmf.chart.core.tests.resolver;
import static org.junit.Assert.assertEquals;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Function;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.tracecompass.internal.provisional.tmf.chart.core.resolver.AbstractLongResolver;
import org.eclipse.tracecompass.tmf.chart.core.tests.stubs.StubObject;
import org.junit.Test;
/**
* Test the {@link AbstractLongResolver} class
*
* @author Geneviève Bastien
*/
public class LongResolverTest {
private static final AbstractLongResolver<StubObject> LONG_RESOLVER = new AbstractLongResolver<StubObject>() {
@Override
public @NonNull Function<StubObject, @Nullable Long> getMapper() {
return o -> o.getLong();
}
};
/**
* Test the limit values of the long resolver
*/
@Test
public void testLimitValues() {
assertEquals((Long) Long.MIN_VALUE, LONG_RESOLVER.getMinValue());
assertEquals((Long) Long.MAX_VALUE, LONG_RESOLVER.getMaxValue());
assertEquals((Long) 0l, LONG_RESOLVER.getZeroValue());
}
/**
* Test the {@link AbstractLongResolver#getComparator()} method
*/
@Test
public void testComparator() {
List<@NonNull Long> list = new ArrayList<>();
// Add a few items not ordered naturally
list.add(0l);
list.add(1234l);
list.add(-1234l);
Collections.sort(list, LONG_RESOLVER.getComparator());
assertEquals(Long.valueOf(-1234l), list.get(0));
assertEquals((Long) 0l, list.get(1));
assertEquals((Long) 1234l, list.get(2));
}
/**
* Test the {@link AbstractLongResolver#getMapper()} method
*/
@Test
public void testMapper() {
Function<StubObject, @Nullable Long> mapper = LONG_RESOLVER.getMapper();
StubObject obj = new StubObject("str", 1, -1234l, 0.0);
assertEquals(Long.valueOf(-1234l), mapper.apply(obj));
obj = new StubObject("str", 1, 0l, 0.0);
assertEquals(Long.valueOf(0l), mapper.apply(obj));
obj = new StubObject("str", 1, 1234l, 0.0);
assertEquals(Long.valueOf(1234l), mapper.apply(obj));
}
}