NSGA2Selection.java

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package net.bmahe.genetics4j.moo.nsga2.spec;
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import java.util.Comparator;
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import java.util.Optional;
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import java.util.function.Function;
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import org.immutables.value.Value;
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import net.bmahe.genetics4j.core.Genotype;
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import net.bmahe.genetics4j.core.spec.selection.SelectionPolicy;
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import net.bmahe.genetics4j.moo.FitnessVector;
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import net.bmahe.genetics4j.moo.ObjectiveDistance;
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/**
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 * NSGA2 Selection specification
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 * <p>Select individuals based on their NSGA2 score, going from the most dominating ones to the lesser ones
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 *
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 * @param <T> Type of the fitness measurement
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 */
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@Value.Immutable
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public abstract class NSGA2Selection<T extends Comparable<T>> implements SelectionPolicy {
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	/**
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	 * Number of objectives
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	 *
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	 * @return
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	 */
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	@Value.Parameter
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	public abstract int numberObjectives();
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	/**
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	 * Override the dominance operator.
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	 * <p>If not specified, it assumes the default comparator conforms to the Pareto dominance relation
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	 *
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	 * @return
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	 */
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	@Value.Default
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	public Comparator<T> dominance() {
39 3 1. lambda$dominance$0 : replaced int return with 0 for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$dominance$0 → KILLED
2. dominance : replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::dominance → KILLED
3. lambda$dominance$0 : removed call to java/lang/Comparable::compareTo → KILLED
 
		return (a, b) -> a.compareTo(b);
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	}
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	/**
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	 * Comparator used for deduplication of solution prior to processing
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	 * <p>If not specified, it defaults to not do any deduplication
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	 *
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	 * @return
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	 */
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	@Value.Default
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	public Optional<Comparator<Genotype>> deduplicate() {
50 1 1. deduplicate : removed call to java/util/Optional::empty → KILLED
 
		return Optional.empty();
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	}
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	/**
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	 * Sort T based on the objective passed as a parameter
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	 *
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	 * @return
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	 */
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	@Value.Parameter
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	public abstract Function<Integer, Comparator<T>> objectiveComparator();
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	/**
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	 * Define how to compute distances between fitness scores along their objectives
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	 *
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	 * @return Distance computation method
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	 */
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	@Value.Parameter
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	public abstract ObjectiveDistance<T> distance();
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	public static class Builder<T extends Comparable<T>> extends ImmutableNSGA2Selection.Builder<T> {
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	}
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	public static <U extends Comparable<U>> Builder<U> builder() {
73 2 1. builder : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::<init> → KILLED
2. builder : replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::builder → KILLED
 
		return new Builder<U>();
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	}
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	/**
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	 * Factory method to instantiate a NSGA2Selection when fitness is defined as a FitnessVector of a Number
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	 *
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	 * @param <U>              Type of the fitness measurement
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	 * @param numberObjectives Number of objectives and dimensions of the FitnessVector
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	 * @param deduplicate      Deduplicator comparator. Null value with disable deduplication
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	 * @return A new instance of NSGA2Selection
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	 */
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	public static <U extends Number & Comparable<U>> NSGA2Selection<FitnessVector<U>> ofFitnessVector(
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			final int numberObjectives, final Comparator<Genotype> deduplicate) {
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87 1 1. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::<init> → NO_COVERAGE
 
		final var builder = new Builder<FitnessVector<U>>();
88
89 7 1. lambda$ofFitnessVector$1 : removed call to java/lang/Double::compare → NO_COVERAGE
2. ofFitnessVector : replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::objectiveComparator with receiver → NO_COVERAGE
3. lambda$ofFitnessVector$1 : replaced int return with 0 for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$1 → NO_COVERAGE
4. lambda$ofFitnessVector$1 : removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE
5. lambda$ofFitnessVector$2 : replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$2 → NO_COVERAGE
6. lambda$ofFitnessVector$1 : removed call to java/lang/Integer::intValue → NO_COVERAGE
7. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::objectiveComparator → NO_COVERAGE
 
		builder.objectiveComparator((m) -> (a, b) -> Double.compare(a.get(m)
90 1 1. lambda$ofFitnessVector$1 : removed call to java/lang/Number::doubleValue → NO_COVERAGE
 
				.doubleValue(),
91 2 1. lambda$ofFitnessVector$1 : removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE
2. lambda$ofFitnessVector$1 : removed call to java/lang/Integer::intValue → NO_COVERAGE
 
				b.get(m)
92 1 1. lambda$ofFitnessVector$1 : removed call to java/lang/Number::doubleValue → NO_COVERAGE
 
						.doubleValue()))
93 6 1. lambda$ofFitnessVector$3 : removed call to java/lang/Math::abs → NO_COVERAGE
2. ofFitnessVector : replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::distance with receiver → NO_COVERAGE
3. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::distance → NO_COVERAGE
4. lambda$ofFitnessVector$3 : removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE
5. lambda$ofFitnessVector$3 : replaced double return with 0.0d for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$3 → NO_COVERAGE
6. lambda$ofFitnessVector$3 : replaced call to java/lang/Math::abs with argument → NO_COVERAGE
 
				.distance((a, b, m) -> Math.abs(b.get(m)
94 1 1. lambda$ofFitnessVector$3 : removed call to java/lang/Number::doubleValue → NO_COVERAGE
 
						.doubleValue()
95 1 1. lambda$ofFitnessVector$3 : removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE
 
						- a.get(m)
96 2 1. lambda$ofFitnessVector$3 : removed call to java/lang/Number::doubleValue → NO_COVERAGE
2. lambda$ofFitnessVector$3 : Replaced double subtraction with addition → NO_COVERAGE
 
								.doubleValue()))
97 2 1. ofFitnessVector : replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::numberObjectives with receiver → NO_COVERAGE
2. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::numberObjectives → NO_COVERAGE
 
				.numberObjectives(numberObjectives)
98 3 1. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::deduplicate → NO_COVERAGE
2. ofFitnessVector : replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::deduplicate with receiver → NO_COVERAGE
3. ofFitnessVector : removed call to java/util/Optional::ofNullable → NO_COVERAGE
 
				.deduplicate(Optional.ofNullable(deduplicate));
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100 2 1. ofFitnessVector : replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE
2. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::build → NO_COVERAGE
 
		return builder.build();
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	}
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	/**
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	 * Factory method to instantiate a NSGA2Selection when fitness is defined as a FitnessVector of a Number
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	 *
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	 * @param <U>              Type of the fitness measurement
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	 * @param numberObjectives Number of objectives and dimensions of the FitnessVector
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	 * @return A new instance of NSGA2Selection
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	 */
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	public static <U extends Number & Comparable<U>> NSGA2Selection<FitnessVector<U>> ofFitnessVector(
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			final int numberObjectives) {
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113 2 1. ofFitnessVector : removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE
2. ofFitnessVector : replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE
 
		return ofFitnessVector(numberObjectives, null);
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	}
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}

Mutations

39

1.1
Location : lambda$dominance$0
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest]/[method:simple()] replaced int return with 0 for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$dominance$0 → KILLED

2.2
Location : dominance
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest]/[method:ctorNoSelectionPolicy()] replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::dominance → KILLED

3.3
Location : lambda$dominance$0
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest]/[method:simple()] removed call to java/lang/Comparable::compareTo → KILLED

50

1.1
Location : deduplicate
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectorTest]/[method:ctorNoSelectionPolicy()] removed call to java/util/Optional::empty → KILLED

73

1.1
Location : builder
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectionPolicyHandlerTest]/[method:canHandle()] removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::<init> → KILLED

2.2
Location : builder
Killed by : net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.moo.nsga2.impl.NSGA2SelectionPolicyHandlerTest]/[method:canHandle()] replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::builder → KILLED

87

1.1
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::<init> → NO_COVERAGE

89

1.1
Location : lambda$ofFitnessVector$1
Killed by : none removed call to java/lang/Double::compare → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::objectiveComparator with receiver → NO_COVERAGE

3.3
Location : lambda$ofFitnessVector$1
Killed by : none replaced int return with 0 for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$1 → NO_COVERAGE

4.4
Location : lambda$ofFitnessVector$1
Killed by : none removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE

5.5
Location : lambda$ofFitnessVector$2
Killed by : none replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$2 → NO_COVERAGE

6.6
Location : lambda$ofFitnessVector$1
Killed by : none removed call to java/lang/Integer::intValue → NO_COVERAGE

7.7
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::objectiveComparator → NO_COVERAGE

90

1.1
Location : lambda$ofFitnessVector$1
Killed by : none removed call to java/lang/Number::doubleValue → NO_COVERAGE

91

1.1
Location : lambda$ofFitnessVector$1
Killed by : none removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE

2.2
Location : lambda$ofFitnessVector$1
Killed by : none removed call to java/lang/Integer::intValue → NO_COVERAGE

92

1.1
Location : lambda$ofFitnessVector$1
Killed by : none removed call to java/lang/Number::doubleValue → NO_COVERAGE

93

1.1
Location : lambda$ofFitnessVector$3
Killed by : none removed call to java/lang/Math::abs → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::distance with receiver → NO_COVERAGE

3.3
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::distance → NO_COVERAGE

4.4
Location : lambda$ofFitnessVector$3
Killed by : none removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE

5.5
Location : lambda$ofFitnessVector$3
Killed by : none replaced double return with 0.0d for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::lambda$ofFitnessVector$3 → NO_COVERAGE

6.6
Location : lambda$ofFitnessVector$3
Killed by : none replaced call to java/lang/Math::abs with argument → NO_COVERAGE

94

1.1
Location : lambda$ofFitnessVector$3
Killed by : none removed call to java/lang/Number::doubleValue → NO_COVERAGE

95

1.1
Location : lambda$ofFitnessVector$3
Killed by : none removed call to net/bmahe/genetics4j/moo/FitnessVector::get → NO_COVERAGE

96

1.1
Location : lambda$ofFitnessVector$3
Killed by : none removed call to java/lang/Number::doubleValue → NO_COVERAGE

2.2
Location : lambda$ofFitnessVector$3
Killed by : none Replaced double subtraction with addition → NO_COVERAGE

97

1.1
Location : ofFitnessVector
Killed by : none replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::numberObjectives with receiver → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::numberObjectives → NO_COVERAGE

98

1.1
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::deduplicate → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none replaced call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::deduplicate with receiver → NO_COVERAGE

3.3
Location : ofFitnessVector
Killed by : none removed call to java/util/Optional::ofNullable → NO_COVERAGE

100

1.1
Location : ofFitnessVector
Killed by : none replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection$Builder::build → NO_COVERAGE

113

1.1
Location : ofFitnessVector
Killed by : none removed call to net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE

2.2
Location : ofFitnessVector
Killed by : none replaced return value with null for net/bmahe/genetics4j/moo/nsga2/spec/NSGA2Selection::ofFitnessVector → NO_COVERAGE

Active mutators

Tests examined


Report generated by PIT 1.20.3