MetaRatingMergerTest.java
/*
* Copyright (c) 2021 Mārtiņš Avots (Martins Avots) and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0, or the MIT License,
* which is available at https://spdx.org/licenses/MIT.html.
*
* SPDX-License-Identifier: EPL-2.0 OR MIT
*/
package net.splitcells.gel.rating.framework;
import net.splitcells.dem.data.set.map.Map;
import net.splitcells.gel.rating.type.Cost;
import net.splitcells.gel.rating.type.Profit;
import org.junit.jupiter.api.Test;
import static net.splitcells.dem.data.order.Ordering.EQUAL;
import static net.splitcells.dem.data.set.map.Maps.map;
import static net.splitcells.gel.rating.type.Cost.cost;
import static net.splitcells.gel.rating.type.Profit.profit;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class MetaRatingMergerTest {
@Test
public void testCombinationOfSame() {
final Map<Class<? extends Rating>, Rating> testContent = map();
testContent.put(Profit.class, profit(3));
final var testSubject = MetaRatingMergerI.metaRatingMerger(testContent);
testSubject.registerMerger(
(base, addition) -> base.containsKey(Profit.class) && addition.containsKey(Profit.class),
(based, addition) -> {
final var oldProfit = (Profit) based.get(Profit.class);
/**
* Other {@link Rating} instances are not update and therefore these are incorrect.
*/
Map<Class<? extends Rating>, Rating> rVal = map();
rVal.put(Profit.class, oldProfit.combine(addition.get(Profit.class)));
return rVal;
});
MetaRating firstResult = testSubject.combine(profit(1));
assertThat(firstResult.content().get(Profit.class).compare_partially_to(profit(4)).get()).isEqualTo(EQUAL);
MetaRating secondResult = firstResult.combine(profit(3));
assertThat(secondResult.content().get(Profit.class).compare_partially_to(profit(7)).get()).isEqualTo(EQUAL);
}
@Test
public void testCombinationOfCompatible() {
final Map<Class<? extends Rating>, Rating> testContent = map();
testContent.put(Profit.class, profit(5));
final var testSubject = MetaRatingMergerI.metaRatingMerger(testContent);
testSubject.registerMerger(
(base, addition) -> base.containsKey(Profit.class) && addition.containsKey(Cost.class),
// TODO Use this for combination method library.
(base, addition) -> {
// TODO Collection where Objects of distinct types can be stored in type safe
// manner.
Map<Class<? extends Rating>, Rating> rVal = map();
final var oldProfit = (Profit) base.get(Profit.class);
final var newProfit = (Cost) addition.get(Cost.class);
rVal.put(Profit.class, cost(newProfit.value() + oldProfit.value()));
return rVal;
});
MetaRating firstResult = testSubject.combine(cost(1));
assertThat(firstResult.content().get(Profit.class).compare_partially_to(cost(6)).get()).isEqualTo(EQUAL);
}
@Test
public void testCombinationOfIncompatible() {
final Map<Class<? extends Rating>, Rating> testContent = map();
testContent.put(Profit.class, profit(7));
final var testSubject = MetaRatingMergerI.metaRatingMerger(testContent);
assertThrows(RuntimeException.class, () -> {
testSubject.registerMerger((base, addition) -> false, (base, addition) -> {
throw new RuntimeException();
});
testSubject.combine(cost(1));
});
}
}