ElitismImpl.java

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package net.bmahe.genetics4j.core.replacement;
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import java.util.List;
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import java.util.Objects;
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import org.apache.commons.lang3.Validate;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import net.bmahe.genetics4j.core.Genotype;
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import net.bmahe.genetics4j.core.Population;
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import net.bmahe.genetics4j.core.selection.Selector;
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import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
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import net.bmahe.genetics4j.core.spec.replacement.Elitism;
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public class ElitismImpl<T extends Comparable<T>> implements ReplacementStrategyImplementor<T> {
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	final static public Logger logger = LogManager.getLogger(ElitismImpl.class);
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	private final Elitism elitismSpec;
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	private final Selector<T> offspringSelector;
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	private final Selector<T> survivorSelector;
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	public ElitismImpl(final Elitism _elistismSpec, final Selector<T> _offspringSelector,
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			final Selector<T> _survivorSelector) {
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		Objects.requireNonNull(_elistismSpec);
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		Objects.requireNonNull(_offspringSelector);
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		Objects.requireNonNull(_survivorSelector);
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29 1 1. <init> : Removed assignment to member variable elitismSpec → KILLED
 
		this.elitismSpec = _elistismSpec;
30 1 1. <init> : Removed assignment to member variable offspringSelector → KILLED
 
		this.offspringSelector = _offspringSelector;
31 1 1. <init> : Removed assignment to member variable survivorSelector → KILLED
 
		this.survivorSelector = _survivorSelector;
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	}
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	@Override
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	public Population<T> select(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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			final int numIndividuals, final List<Genotype> population, final List<T> populationScores,
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			final List<Genotype> offsprings, final List<T> offspringScores) {
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		Objects.requireNonNull(eaConfiguration);
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		Validate.isTrue(generation >= 0);
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		Validate.isTrue(numIndividuals > 0);
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		Objects.requireNonNull(population);
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		Objects.requireNonNull(populationScores);
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		Validate.isTrue(population.size() == populationScores.size());
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		Objects.requireNonNull(offsprings);
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		Objects.requireNonNull(offspringScores);
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		Validate.isTrue(offsprings.size() == offspringScores.size());
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		Validate.isTrue(elitismSpec.atLeastNumOffsprings() + elitismSpec.atLeastNumSurvivors() <= numIndividuals);
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49 2 1. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::offspringRatio → KILLED
2. select : Replaced double multiplication with division → KILLED
 
		final int scaledOffspring = (int) (elitismSpec.offspringRatio() * numIndividuals);
50 3 1. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumOffsprings → SURVIVED
2. select : replaced call to java/lang/Math::max with argument → KILLED
3. select : removed call to java/lang/Math::max → KILLED
 
		final int offspringNeeded = Math.max(scaledOffspring, elitismSpec.atLeastNumOffsprings());
51 1 1. select : Replaced integer subtraction with addition → KILLED
 
		final int survivorNeeded = numIndividuals - offspringNeeded;
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		final int adjustedOffspringNeeded;
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		final int adjustedSurvivorNeeded;
55 5 1. select : changed conditional boundary → SURVIVED
2. select : removed conditional - replaced comparison check with false → KILLED
3. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED
4. select : negated conditional → KILLED
5. select : removed conditional - replaced comparison check with true → KILLED
 
		if (survivorNeeded < elitismSpec.atLeastNumSurvivors()) {
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			// Alternatively, it could be numIndividuals - elitismSpec.atLeastNumSurvivors()
57 3 1. select : Replaced integer subtraction with addition → KILLED
2. select : Replaced integer subtraction with addition → KILLED
3. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED
 
			adjustedOffspringNeeded = offspringNeeded - (elitismSpec.atLeastNumSurvivors() - survivorNeeded);
58 1 1. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED
 
			adjustedSurvivorNeeded = elitismSpec.atLeastNumSurvivors();
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		} else {
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			adjustedOffspringNeeded = offspringNeeded;
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			adjustedSurvivorNeeded = survivorNeeded;
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		}
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		logger.debug("We have {} individuals requested and an offspring ratio of {}. Survivors:{}, Offsprings:{}",
65 1 1. select : removed call to java/lang/Integer::valueOf → SURVIVED
 
				numIndividuals,
66 2 1. select : removed call to java/lang/Double::valueOf → SURVIVED
2. select : removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::offspringRatio → SURVIVED
 
				elitismSpec.offspringRatio(),
67 1 1. select : removed call to java/lang/Integer::valueOf → SURVIVED
 
				adjustedSurvivorNeeded,
68 1 1. select : removed call to java/lang/Integer::valueOf → SURVIVED
 
				adjustedOffspringNeeded);
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70 1 1. select : removed call to net/bmahe/genetics4j/core/Population::<init> → KILLED
 
		final Population<T> selected = new Population<>();
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		logger.info("Selecting {} offsprings", adjustedOffspringNeeded);
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		final Population<T> selectedOffspring = offspringSelector
74 1 1. select : removed call to net/bmahe/genetics4j/core/selection/Selector::select → KILLED
 
				.select(eaConfiguration, generation, adjustedOffspringNeeded, offsprings, offspringScores);
75 1 1. select : removed call to net/bmahe/genetics4j/core/Population::addAll → KILLED
 
		selected.addAll(selectedOffspring);
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		logger.info("Selecting {} survivors", adjustedSurvivorNeeded);
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		final Population<T> selectedSurvivors = survivorSelector
79 1 1. select : removed call to net/bmahe/genetics4j/core/selection/Selector::select → KILLED
 
				.select(eaConfiguration, generation, adjustedSurvivorNeeded, population, populationScores);
80 1 1. select : removed call to net/bmahe/genetics4j/core/Population::addAll → KILLED
 
		selected.addAll(selectedSurvivors);
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82 1 1. select : replaced return value with null for net/bmahe/genetics4j/core/replacement/ElitismImpl::select → KILLED
 
		return selected;
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	}
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}

Mutations

29

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] Removed assignment to member variable elitismSpec → KILLED

30

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] Removed assignment to member variable offspringSelector → KILLED

31

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] Removed assignment to member variable survivorSelector → KILLED

49

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::offspringRatio → KILLED

2.2
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] Replaced double multiplication with division → KILLED

50

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] replaced call to java/lang/Math::max with argument → KILLED

2.2
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to java/lang/Math::max → KILLED

3.3
Location : select
Killed by : none removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumOffsprings → SURVIVED Covering tests

51

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] Replaced integer subtraction with addition → KILLED

55

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] removed conditional - replaced comparison check with false → KILLED

2.2
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED

3.3
Location : select
Killed by : none changed conditional boundary → SURVIVED Covering tests

4.4
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] negated conditional → KILLED

5.5
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed conditional - replaced comparison check with true → KILLED

57

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] Replaced integer subtraction with addition → KILLED

2.2
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] Replaced integer subtraction with addition → KILLED

3.3
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED

58

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::atLeastNumSurvivors → KILLED

65

1.1
Location : select
Killed by : none removed call to java/lang/Integer::valueOf → SURVIVED Covering tests

66

1.1
Location : select
Killed by : none removed call to java/lang/Double::valueOf → SURVIVED Covering tests

2.2
Location : select
Killed by : none removed call to net/bmahe/genetics4j/core/spec/replacement/Elitism::offspringRatio → SURVIVED Covering tests

67

1.1
Location : select
Killed by : none removed call to java/lang/Integer::valueOf → SURVIVED Covering tests

68

1.1
Location : select
Killed by : none removed call to java/lang/Integer::valueOf → SURVIVED Covering tests

70

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::<init> → KILLED

74

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/selection/Selector::select → KILLED

75

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::addAll → KILLED

79

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/selection/Selector::select → KILLED

80

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::addAll → KILLED

82

1.1
Location : select
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/replacement/ElitismImpl::select → KILLED

Active mutators

Tests examined


Report generated by PIT 1.20.3