SwapMutationPolicyHandler.java

package net.bmahe.genetics4j.core.mutation;

import java.util.Objects;
import java.util.random.RandomGenerator;

import org.apache.commons.lang3.Validate;

import net.bmahe.genetics4j.core.chromosomes.Chromosome;
import net.bmahe.genetics4j.core.mutation.chromosome.ChromosomeMutationHandler;
import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
import net.bmahe.genetics4j.core.spec.AbstractEAExecutionContext;
import net.bmahe.genetics4j.core.spec.mutation.MutationPolicy;
import net.bmahe.genetics4j.core.spec.mutation.SwapMutation;
import net.bmahe.genetics4j.core.util.ChromosomeResolverUtils;

public class SwapMutationPolicyHandler<T extends Comparable<T>> implements MutationPolicyHandler<T> {

	private final RandomGenerator randomGenerator;

	public SwapMutationPolicyHandler(final RandomGenerator _randomGenerator) {
		Objects.requireNonNull(_randomGenerator);

		this.randomGenerator = _randomGenerator;
	}

	@Override
	public boolean canHandle(final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver,
			final MutationPolicy mutationPolicy) {
		Objects.requireNonNull(mutationPolicy);

		return mutationPolicy instanceof SwapMutation;
	}

	@Override
	public Mutator createMutator(final AbstractEAExecutionContext<T> eaExecutionContext,
			final AbstractEAConfiguration<T> eaConfiguration,
			final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver, final MutationPolicy mutationPolicy) {
		Objects.requireNonNull(eaExecutionContext);
		Objects.requireNonNull(eaConfiguration);
		Objects.requireNonNull(mutationPolicyHandlerResolver);
		Objects.requireNonNull(mutationPolicy);
		Validate.isInstanceOf(SwapMutation.class, mutationPolicy);

		final SwapMutation swapMutation = (SwapMutation) mutationPolicy;
		final double populationMutationProbability = swapMutation.populationMutationProbability();

		final ChromosomeMutationHandler<? extends Chromosome>[] chromosomeMutationHandlers = ChromosomeResolverUtils
				.resolveChromosomeMutationHandlers(eaExecutionContext, eaConfiguration, mutationPolicy);

		return new GenericMutatorImpl(randomGenerator,
				chromosomeMutationHandlers,
				mutationPolicy,
				populationMutationProbability);
	}
}







Active mutators

CONDITIONALS_BOUNDARY
CONSTRUCTOR_CALLS
EMPTY_RETURNS
EXPERIMENTAL_ARGUMENT_PROPAGATION
EXPERIMENTAL_BIG_DECIMAL
EXPERIMENTAL_BIG_INTEGER
EXPERIMENTAL_MEMBER_VARIABLE
EXPERIMENTAL_NAKED_RECEIVER
EXPERIMENTAL_REMOVE_SWITCH_MUTATOR_[0-99]
EXPERIMENTAL_SWITCH
FALSE_RETURNS
INCREMENTS
INLINE_CONSTS
INVERT_NEGS
MATH
NEGATE_CONDITIONALS
NON_VOID_METHOD_CALLS
NULL_RETURNS
PRIMITIVE_RETURNS
REMOVE_CONDITIONALS_EQUAL_ELSE
REMOVE_CONDITIONALS_EQUAL_IF
REMOVE_CONDITIONALS_ORDER_ELSE
REMOVE_CONDITIONALS_ORDER_IF
REMOVE_INCREMENTS
TRUE_RETURNS
VOID_METHOD_CALLS

Tests examined

net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] (6 ms)
net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoSurvivorSelector()] (1 ms)
net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoOffspringSelector()] (1 ms)
net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoElitismSpec()] (2 ms)
net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest]/[method:selectMaximize()] (1 ms)
net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest]/[method:selectMaximizing()] (2 ms)
net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] (1 ms)
net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest]/[method:selectMinimize()] (2 ms)
net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] (2 ms)
net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest]/[method:selectMinimizing()] (4 ms)
net.bmahe.genetics4j.core.selection.RandomSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RandomSelectionPolicyHandlerTest]/[method:select()] (15 ms)
net.bmahe.genetics4j.core.selection.MultiTournamentsSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.MultiTournamentsSelectionPolicyHandlerTest]/[method:selectMaxThenMin()] (4 ms)
net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest]/[method:selectMinimize()] (7 ms)
net.bmahe.genetics4j.core.evaluation.FitnessEvaluatorVirtualThreadTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.evaluation.FitnessEvaluatorVirtualThreadTest]/[method:virtualThreadFactory()] (5 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evaluateOnceWithDifferentGenerations()] (3 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:systemConstruction()] (20 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evaluateOnce()] (4 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithImmediateTermination()] (31 ms)
net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest]/[method:selectMaximize()] (91 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithIntChromosome()] (12 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithBitChromosome()] (15 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithPostEvaluationProcessor()] (35 ms)
net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:getterMethods()] (430 ms)

Report generated by PIT 1.25.7 support

1		package net.bmahe.genetics4j.core.mutation;
2
3		import java.util.Objects;
4		import java.util.random.RandomGenerator;
5
6		import org.apache.commons.lang3.Validate;
7
8		import net.bmahe.genetics4j.core.chromosomes.Chromosome;
9		import net.bmahe.genetics4j.core.mutation.chromosome.ChromosomeMutationHandler;
10		import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
11		import net.bmahe.genetics4j.core.spec.AbstractEAExecutionContext;
12		import net.bmahe.genetics4j.core.spec.mutation.MutationPolicy;
13		import net.bmahe.genetics4j.core.spec.mutation.SwapMutation;
14		import net.bmahe.genetics4j.core.util.ChromosomeResolverUtils;
15
16		public class SwapMutationPolicyHandler<T extends Comparable<T>> implements MutationPolicyHandler<T> {
17
18		private final RandomGenerator randomGenerator;
19
20		public SwapMutationPolicyHandler(final RandomGenerator _randomGenerator) {
21		Objects.requireNonNull(_randomGenerator);
22
23	1 1. <init> : Removed assignment to member variable randomGenerator → KILLED	this.randomGenerator = _randomGenerator;
24		}
25
26		@Override
27		public boolean canHandle(final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver,
28		final MutationPolicy mutationPolicy) {
29		Objects.requireNonNull(mutationPolicy);
30
31	2 1. canHandle : replaced boolean return with false for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::canHandle → KILLED 2. canHandle : replaced boolean return with true for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::canHandle → KILLED	return mutationPolicy instanceof SwapMutation;
32		}
33
34		@Override
35		public Mutator createMutator(final AbstractEAExecutionContext<T> eaExecutionContext,
36		final AbstractEAConfiguration<T> eaConfiguration,
37		final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver, final MutationPolicy mutationPolicy) {
38		Objects.requireNonNull(eaExecutionContext);
39		Objects.requireNonNull(eaConfiguration);
40		Objects.requireNonNull(mutationPolicyHandlerResolver);
41		Objects.requireNonNull(mutationPolicy);
42		Validate.isInstanceOf(SwapMutation.class, mutationPolicy);
43
44		final SwapMutation swapMutation = (SwapMutation) mutationPolicy;
45	1 1. createMutator : removed call to net/bmahe/genetics4j/core/spec/mutation/SwapMutation::populationMutationProbability → SURVIVED	final double populationMutationProbability = swapMutation.populationMutationProbability();
46
47		final ChromosomeMutationHandler<? extends Chromosome>[] chromosomeMutationHandlers = ChromosomeResolverUtils
48	1 1. createMutator : removed call to net/bmahe/genetics4j/core/util/ChromosomeResolverUtils::resolveChromosomeMutationHandlers → KILLED	.resolveChromosomeMutationHandlers(eaExecutionContext, eaConfiguration, mutationPolicy);
49
50	2 1. createMutator : removed call to net/bmahe/genetics4j/core/mutation/GenericMutatorImpl::<init> → SURVIVED 2. createMutator : replaced return value with null for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::createMutator → SURVIVED	return new GenericMutatorImpl(randomGenerator,
51		chromosomeMutationHandlers,
52		mutationPolicy,
53		populationMutationProbability);
54		}
55		}
		Mutations
23		1.1 Location : <init> Killed by : net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] Removed assignment to member variable randomGenerator → KILLED
31		1.1 Location : canHandle Killed by : net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] replaced boolean return with false for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::canHandle → KILLED 2.2 Location : canHandle Killed by : net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] replaced boolean return with true for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::canHandle → KILLED
45		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/spec/mutation/SwapMutation::populationMutationProbability → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()]
48		1.1 Location : createMutator Killed by : net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/util/ChromosomeResolverUtils::resolveChromosomeMutationHandlers → KILLED
50		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/mutation/GenericMutatorImpl::<init> → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] 2.2 Location : createMutator Killed by : none replaced return value with null for net/bmahe/genetics4j/core/mutation/SwapMutationPolicyHandler::createMutator → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()]

SwapMutationPolicyHandler.java

Mutations

Active mutators

Tests examined