Terminations.java

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package net.bmahe.genetics4j.core.termination;
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import java.time.Duration;
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import java.time.temporal.ChronoUnit;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.List;
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import java.util.Objects;
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import java.util.Optional;
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import org.apache.commons.lang3.Validate;
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import net.bmahe.genetics4j.core.Genotype;
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import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
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/**
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 * Utility class providing factory methods for creating common termination conditions in evolutionary algorithms.
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 * 
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 * <p>Terminations provides a comprehensive set of pre-built termination criteria that can be used individually or
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 * combined to create complex stopping conditions for evolutionary algorithms. Each method returns a {@link Termination}
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 * instance that encapsulates the specific logic for determining when evolution should stop.
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 * 
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 * <p>Available termination criteria include:
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 * <ul>
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 * <li><strong>Generation-based</strong>: Stop after a maximum number of generations</li>
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 * <li><strong>Time-based</strong>: Stop after a specified duration has elapsed</li>
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 * <li><strong>Fitness-based</strong>: Stop when fitness reaches certain thresholds</li>
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 * <li><strong>Convergence-based</strong>: Stop when fitness stops improving for a period</li>
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 * <li><strong>Logical combinations</strong>: Combine multiple criteria with AND/OR logic</li>
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 * </ul>
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 * 
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 * <p>Termination criteria can be combined to create sophisticated stopping conditions:
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 * 
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 * <pre>{@code
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 * // Stop after 100 generations OR when fitness reaches 0.95 OR after 5 minutes
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 * Termination<Double> complexTermination = Terminations.or(Terminations.ofMaxGeneration(100),
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 * 		Terminations.ofFitnessAtLeast(0.95),
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 * 		Terminations.ofMaxTime(Duration.ofMinutes(5)));
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 * 
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 * // Stop only when BOTH conditions are met: good fitness AND stable evolution
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 * Termination<Double> conservativeTermination = Terminations.and(Terminations.ofFitnessAtLeast(0.9),
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 * 		Terminations.ofStableFitness(20));
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 * 
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 * // Simple generation limit for quick experiments
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 * Termination<Double> simpleTermination = Terminations.ofMaxGeneration(50);
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 * }</pre>
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 * 
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 * <p>Common usage patterns:
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 * <ul>
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 * <li><strong>Development and testing</strong>: Use generation limits for quick experimentation</li>
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 * <li><strong>Production systems</strong>: Combine time limits with fitness criteria for reliability</li>
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 * <li><strong>Research applications</strong>: Use convergence detection to study algorithm behavior</li>
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 * <li><strong>Resource-constrained environments</strong>: Use time-based limits for predictable execution</li>
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 * </ul>
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 * 
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 * <p>Design considerations:
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 * <ul>
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 * <li><strong>Performance</strong>: Termination checks are called frequently; implementations are optimized</li>
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 * <li><strong>Thread safety</strong>: Some termination criteria maintain internal state safely</li>
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 * <li><strong>Flexibility</strong>: All criteria can be combined using logical operators</li>
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 * <li><strong>Reliability</strong>: Include fallback termination criteria to prevent infinite loops</li>
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 * </ul>
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 * 
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 * @see Termination
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 * @see net.bmahe.genetics4j.core.EASystem
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 * @see net.bmahe.genetics4j.core.spec.EAExecutionContext
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 */
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public class Terminations {
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	/**
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	 * Creates a termination condition that stops evolution after a specified number of generations.
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	 * 
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	 * <p>This is the most common termination criterion, providing a simple upper bound on the number of evolutionary
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	 * cycles. The algorithm will terminate when the generation counter reaches or exceeds the specified maximum.
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	 * 
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	 * @param <T>           the type of fitness values in the evolutionary algorithm
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	 * @param maxGeneration the maximum number of generations to run (must be positive)
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	 * @return a termination condition that stops after the specified number of generations
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	 * @throws IllegalArgumentException if maxGeneration is not positive
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	 */
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	public static <T extends Comparable<T>> Termination<T> ofMaxGeneration(final long maxGeneration) {
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		Validate.isTrue(maxGeneration > 0);
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84 3 1. ofMaxGeneration : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofMaxGeneration → KILLED
2. ofMaxGeneration : removed call to net/bmahe/genetics4j/core/termination/Terminations$1::<init> → KILLED
3. <init> : Removed assignment to member variable val$maxGeneration → KILLED
		return new Termination<T>() {
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
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				Validate.isTrue(generation >= 0);
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91 7 1. isDone : Substituted 1 with 0 → KILLED
2. isDone : changed conditional boundary → KILLED
3. isDone : negated conditional → KILLED
4. isDone : Substituted 0 with 1 → KILLED
5. isDone : removed conditional - replaced comparison check with true → KILLED
6. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$1::isDone → KILLED
7. isDone : removed conditional - replaced comparison check with false → KILLED
				return generation >= maxGeneration;
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that stops evolution after a specified time duration.
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	 * 
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	 * <p>This time-based termination is useful for ensuring predictable execution times, especially in production
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	 * environments or when computational resources are limited. The timer starts on the first evaluation and stops when
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	 * the elapsed time exceeds the specified duration.
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	 * 
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	 * @param <T>      the type of fitness values in the evolutionary algorithm
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	 * @param duration the maximum time to run the algorithm
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	 * @return a termination condition that stops after the specified duration
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	 * @throws IllegalArgumentException if duration is null
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	 */
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	public static <T extends Comparable<T>> Termination<T> ofMaxTime(final Duration duration) {
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		Objects.requireNonNull(duration);
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111 3 1. <init> : Removed assignment to member variable val$duration → NO_COVERAGE
2. ofMaxTime : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofMaxTime → NO_COVERAGE
3. ofMaxTime : removed call to net/bmahe/genetics4j/core/termination/Terminations$2::<init> → NO_COVERAGE
		return new Termination<T>() {
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113 2 1. <init> : Removed assignment to member variable durationNanos → NO_COVERAGE
2. <init> : removed call to java/time/Duration::get → NO_COVERAGE
			private final long durationNanos = duration.get(ChronoUnit.NANOS);
114 1 1. <init> : Removed assignment to member variable startTime → NO_COVERAGE
			private Long startTime = null;
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
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				Validate.isTrue(generation >= 0);
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121 1 1. isDone : removed call to java/lang/System::nanoTime → NO_COVERAGE
				final long nowNanos = System.nanoTime();
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123 3 1. isDone : negated conditional → NO_COVERAGE
2. isDone : removed conditional - replaced equality check with false → NO_COVERAGE
3. isDone : removed conditional - replaced equality check with true → NO_COVERAGE
				if (startTime == null) {
124 2 1. isDone : Removed assignment to member variable startTime → NO_COVERAGE
2. isDone : removed call to java/lang/Long::valueOf → NO_COVERAGE
					startTime = nowNanos;
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				}
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127 9 1. isDone : Substituted 1 with 0 → NO_COVERAGE
2. isDone : removed conditional - replaced comparison check with true → NO_COVERAGE
3. isDone : negated conditional → NO_COVERAGE
4. isDone : changed conditional boundary → NO_COVERAGE
5. isDone : Substituted 0 with 1 → NO_COVERAGE
6. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$2::isDone → NO_COVERAGE
7. isDone : removed call to java/lang/Long::longValue → NO_COVERAGE
8. isDone : Replaced long subtraction with addition → NO_COVERAGE
9. isDone : removed conditional - replaced comparison check with false → NO_COVERAGE
				return nowNanos - startTime >= durationNanos;
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that requires ALL specified conditions to be met.
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	 * 
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	 * <p>This logical AND operation creates a conservative termination strategy where evolution continues until every
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	 * provided termination criterion is satisfied. Useful for ensuring multiple quality conditions are met before
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	 * stopping.
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	 * 
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	 * @param <T>          the type of fitness values in the evolutionary algorithm
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	 * @param terminations the termination conditions that must all be satisfied
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	 * @return a termination condition that stops only when all conditions are met
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	 * @throws IllegalArgumentException if terminations is null or empty
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	 */
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	@SafeVarargs
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	public static <T extends Comparable<T>> Termination<T> and(final Termination<T>... terminations) {
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		Objects.requireNonNull(terminations);
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		Validate.isTrue(terminations.length > 0);
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149 3 1. <init> : Removed assignment to member variable val$terminations → NO_COVERAGE
2. and : removed call to net/bmahe/genetics4j/core/termination/Terminations$3::<init> → NO_COVERAGE
3. and : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::and → NO_COVERAGE
		return new Termination<T>() {
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
154 3 1. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$3::isDone → NO_COVERAGE
2. isDone : removed call to java/util/Arrays::stream → NO_COVERAGE
3. isDone : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$3::isDone → NO_COVERAGE
				return Arrays.stream(terminations)
155 4 1. isDone : removed call to java/util/stream/Stream::allMatch → NO_COVERAGE
2. lambda$isDone$0 : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$3::lambda$isDone$0 → NO_COVERAGE
3. lambda$isDone$0 : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$3::lambda$isDone$0 → NO_COVERAGE
4. lambda$isDone$0 : removed call to net/bmahe/genetics4j/core/termination/Termination::isDone → NO_COVERAGE
						.allMatch((termination) -> termination.isDone(eaConfiguration, generation, population, fitness));
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that stops when ANY of the specified conditions is met.
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	 * 
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	 * <p>This logical OR operation creates a flexible termination strategy where evolution stops as soon as any one of
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	 * the provided criteria is satisfied. Commonly used to provide multiple stopping conditions like time limits,
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	 * generation limits, or fitness thresholds.
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	 * 
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	 * @param <T>          the type of fitness values in the evolutionary algorithm
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	 * @param terminations the termination conditions, any of which can trigger stopping
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	 * @return a termination condition that stops when any condition is met
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	 * @throws IllegalArgumentException if terminations is null or empty
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	 */
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	@SafeVarargs
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	public static <T extends Comparable<T>> Termination<T> or(final Termination<T>... terminations) {
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		Objects.requireNonNull(terminations);
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		Validate.isTrue(terminations.length > 0);
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178 3 1. or : removed call to net/bmahe/genetics4j/core/termination/Terminations$4::<init> → NO_COVERAGE
2. or : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::or → NO_COVERAGE
3. <init> : Removed assignment to member variable val$terminations → NO_COVERAGE
		return new Termination<T>() {
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
183 3 1. isDone : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$4::isDone → NO_COVERAGE
2. isDone : removed call to java/util/Arrays::stream → NO_COVERAGE
3. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$4::isDone → NO_COVERAGE
				return Arrays.stream(terminations)
184 4 1. lambda$isDone$0 : removed call to net/bmahe/genetics4j/core/termination/Termination::isDone → NO_COVERAGE
2. lambda$isDone$0 : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$4::lambda$isDone$0 → NO_COVERAGE
3. isDone : removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE
4. lambda$isDone$0 : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$4::lambda$isDone$0 → NO_COVERAGE
						.anyMatch((termination) -> termination.isDone(eaConfiguration, generation, population, fitness));
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that stops when any individual reaches a minimum fitness threshold.
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	 * 
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	 * <p>This fitness-based termination is useful for maximization problems where you want to stop as soon as a solution
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	 * of acceptable quality is found. The condition is satisfied when any individual in the population has a fitness
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	 * value greater than or equal to the threshold.
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	 * 
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	 * @param <T>       the type of fitness values in the evolutionary algorithm
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	 * @param threshold the minimum fitness value required to trigger termination
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	 * @return a termination condition that stops when fitness reaches the threshold
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	 * @throws IllegalArgumentException if threshold is null
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	 */
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	public static <T extends Comparable<T>> Termination<T> ofFitnessAtLeast(final T threshold) {
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		Objects.requireNonNull(threshold);
204 3 1. ofFitnessAtLeast : removed call to net/bmahe/genetics4j/core/termination/Terminations$5::<init> → NO_COVERAGE
2. ofFitnessAtLeast : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofFitnessAtLeast → NO_COVERAGE
3. <init> : Removed assignment to member variable val$threshold → NO_COVERAGE
		return new Termination<T>() {
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
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				Validate.isTrue(generation >= 0);
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211 3 1. isDone : removed call to java/util/List::stream → NO_COVERAGE
2. isDone : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$5::isDone → NO_COVERAGE
3. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$5::isDone → NO_COVERAGE
				return fitness.stream()
212 9 1. lambda$isDone$0 : removed conditional - replaced comparison check with false → NO_COVERAGE
2. lambda$isDone$0 : removed call to java/lang/Comparable::compareTo → NO_COVERAGE
3. lambda$isDone$0 : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$5::lambda$isDone$0 → NO_COVERAGE
4. isDone : removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE
5. lambda$isDone$0 : Substituted 1 with 0 → NO_COVERAGE
6. lambda$isDone$0 : changed conditional boundary → NO_COVERAGE
7. lambda$isDone$0 : removed conditional - replaced comparison check with true → NO_COVERAGE
8. lambda$isDone$0 : negated conditional → NO_COVERAGE
9. lambda$isDone$0 : Substituted 0 with 1 → NO_COVERAGE
						.anyMatch((fitnessValue) -> threshold.compareTo(fitnessValue) <= 0);
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that stops when any individual reaches a maximum fitness threshold.
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	 * 
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	 * <p>This fitness-based termination is useful for minimization problems where you want to stop as soon as a solution
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	 * of acceptable quality is found. The condition is satisfied when any individual in the population has a fitness
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	 * value less than or equal to the threshold.
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	 * 
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	 * @param <T>       the type of fitness values in the evolutionary algorithm
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	 * @param threshold the maximum fitness value required to trigger termination
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	 * @return a termination condition that stops when fitness reaches the threshold
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	 * @throws IllegalArgumentException if threshold is null
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	 */
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	public static <T extends Comparable<T>> Termination<T> ofFitnessAtMost(final T threshold) {
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		Objects.requireNonNull(threshold);
231 3 1. <init> : Removed assignment to member variable val$threshold → NO_COVERAGE
2. ofFitnessAtMost : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofFitnessAtMost → NO_COVERAGE
3. ofFitnessAtMost : removed call to net/bmahe/genetics4j/core/termination/Terminations$6::<init> → NO_COVERAGE
		return new Termination<T>() {
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			@Override
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			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
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				Validate.isTrue(generation >= 0);
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238 3 1. isDone : removed call to java/util/List::stream → NO_COVERAGE
2. isDone : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$6::isDone → NO_COVERAGE
3. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$6::isDone → NO_COVERAGE
				return fitness.stream()
239 9 1. lambda$isDone$0 : Substituted 0 with 1 → NO_COVERAGE
2. lambda$isDone$0 : removed call to java/lang/Comparable::compareTo → NO_COVERAGE
3. lambda$isDone$0 : removed conditional - replaced comparison check with false → NO_COVERAGE
4. lambda$isDone$0 : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$6::lambda$isDone$0 → NO_COVERAGE
5. isDone : removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE
6. lambda$isDone$0 : changed conditional boundary → NO_COVERAGE
7. lambda$isDone$0 : Substituted 1 with 0 → NO_COVERAGE
8. lambda$isDone$0 : removed conditional - replaced comparison check with true → NO_COVERAGE
9. lambda$isDone$0 : negated conditional → NO_COVERAGE
						.anyMatch((fitnessValue) -> threshold.compareTo(fitnessValue) >= 0);
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			}
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		};
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	}
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	/**
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	 * Creates a termination condition that stops when fitness stops improving for a specified number of generations.
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	 * 
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	 * <p>This convergence-based termination detects when the evolutionary algorithm has reached a stable state where
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	 * further evolution is unlikely to yield significant improvements. It tracks the best fitness value and stops
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	 * evolution if no improvement is observed for the specified number of consecutive generations.
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	 * 
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	 * <p>This termination criterion is particularly useful for:
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	 * <ul>
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	 * <li>Preventing unnecessary computation when the algorithm has converged</li>
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	 * <li>Automatically adapting to problem difficulty</li>
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	 * <li>Research applications studying convergence behavior</li>
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	 * </ul>
257
	 * 
258
	 * @param <T>                    the type of fitness values in the evolutionary algorithm
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	 * @param stableGenerationsCount the number of generations without improvement required to trigger termination
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	 * @return a termination condition that stops when fitness plateaus
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	 * @throws IllegalArgumentException if stableGenerationsCount is not positive
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	 */
263
	public static <T extends Comparable<T>> Termination<T> ofStableFitness(final int stableGenerationsCount) {
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		Validate.isTrue(stableGenerationsCount > 0);
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266 3 1. <init> : Removed assignment to member variable val$stableGenerationsCount → KILLED
2. ofStableFitness : removed call to net/bmahe/genetics4j/core/termination/Terminations$7::<init> → KILLED
3. ofStableFitness : replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofStableFitness → KILLED
		return new Termination<T>() {
267
268 2 1. <init> : Removed assignment to member variable lastImprovedGeneration → KILLED
2. <init> : Substituted -1 with 0 → KILLED
			private long lastImprovedGeneration = -1;
269 1 1. <init> : Removed assignment to member variable lastBestFitness → SURVIVED
			private T lastBestFitness = null;
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			@Override
272
			public boolean isDone(final AbstractEAConfiguration<T> eaConfiguration, final long generation,
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					final List<Genotype> population, final List<T> fitness) {
274
				Validate.isTrue(generation >= 0);
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276 1 1. isDone : removed call to net/bmahe/genetics4j/core/spec/AbstractEAConfiguration::fitnessComparator → KILLED
				final Comparator<T> fitnessComparator = eaConfiguration.fitnessComparator();
277
278 1 1. isDone : removed call to java/util/List::stream → KILLED
				final Optional<T> bestFitnessOpt = fitness.stream()
279 1 1. isDone : removed call to java/util/stream/Stream::max → KILLED
						.max(fitnessComparator);
280
281 5 1. isDone : changed conditional boundary → KILLED
2. isDone : Substituted 0 with 1 → KILLED
3. isDone : negated conditional → KILLED
4. isDone : removed conditional - replaced comparison check with true → KILLED
5. isDone : removed conditional - replaced comparison check with false → KILLED
				if (lastImprovedGeneration < 0
282 12 1. isDone : Substituted 0 with 1 → SURVIVED
2. lambda$isDone$0 : negated conditional → KILLED
3. lambda$isDone$0 : removed conditional - replaced comparison check with true → KILLED
4. lambda$isDone$0 : Substituted 0 with 1 → KILLED
5. lambda$isDone$0 : changed conditional boundary → KILLED
6. isDone : replaced call to java/util/Optional::map with receiver → KILLED
7. lambda$isDone$0 : removed call to java/util/Comparator::compare → KILLED
8. lambda$isDone$0 : Substituted 1 with 0 → KILLED
9. isDone : removed call to java/util/Optional::map → KILLED
10. lambda$isDone$0 : removed conditional - replaced comparison check with false → KILLED
11. lambda$isDone$0 : replaced Boolean return with True for net/bmahe/genetics4j/core/termination/Terminations$7::lambda$isDone$0 → KILLED
12. lambda$isDone$0 : removed call to java/lang/Boolean::valueOf → KILLED
						|| bestFitnessOpt.map(bestFitness -> fitnessComparator.compare(bestFitness, lastBestFitness) > 0)
283 7 1. isDone : removed call to java/lang/Boolean::valueOf → SURVIVED
2. isDone : removed conditional - replaced equality check with false → KILLED
3. isDone : removed call to java/lang/Boolean::booleanValue → KILLED
4. isDone : replaced call to java/util/Optional::orElse with argument → KILLED
5. isDone : removed call to java/util/Optional::orElse → KILLED
6. isDone : negated conditional → KILLED
7. isDone : removed conditional - replaced equality check with true → KILLED
								.orElse(false)) {
284 1 1. isDone : Removed assignment to member variable lastImprovedGeneration → KILLED
					lastImprovedGeneration = generation;
285 2 1. isDone : Removed assignment to member variable lastBestFitness → KILLED
2. isDone : removed call to java/util/Optional::get → KILLED
					lastBestFitness = bestFitnessOpt.get();
286
				}
287
288 5 1. isDone : removed conditional - replaced comparison check with false → KILLED
2. isDone : removed conditional - replaced comparison check with true → KILLED
3. isDone : changed conditional boundary → KILLED
4. isDone : negated conditional → KILLED
5. isDone : Replaced long subtraction with addition → KILLED
				if (generation - lastImprovedGeneration > stableGenerationsCount) {
289 2 1. isDone : replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$7::isDone → KILLED
2. isDone : Substituted 1 with 0 → KILLED
					return true;
290
				}
291 2 1. isDone : replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$7::isDone → KILLED
2. isDone : Substituted 0 with 1 → KILLED
				return false;
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			}
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		};
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	}
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}

Mutations

84

1.1
Location : ofMaxGeneration
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGenerationInvalid()]
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofMaxGeneration → KILLED

2.2
Location : ofMaxGeneration
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGenerationInvalid()]
removed call to net/bmahe/genetics4j/core/termination/Terminations$1::<init> → KILLED

3.3
Location : <init>
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
Removed assignment to member variable val$maxGeneration → KILLED

91

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
Substituted 1 with 0 → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
changed conditional boundary → KILLED

3.3
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
negated conditional → KILLED

4.4
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
Substituted 0 with 1 → KILLED

5.5
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
removed conditional - replaced comparison check with true → KILLED

6.6
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$1::isDone → KILLED

7.7
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofMaxGeneration()]
removed conditional - replaced comparison check with false → KILLED

111

1.1
Location : <init>
Killed by : none
Removed assignment to member variable val$duration → NO_COVERAGE

2.2
Location : ofMaxTime
Killed by : none
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofMaxTime → NO_COVERAGE

3.3
Location : ofMaxTime
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Terminations$2::<init> → NO_COVERAGE

113

1.1
Location : <init>
Killed by : none
Removed assignment to member variable durationNanos → NO_COVERAGE

2.2
Location : <init>
Killed by : none
removed call to java/time/Duration::get → NO_COVERAGE

114

1.1
Location : <init>
Killed by : none
Removed assignment to member variable startTime → NO_COVERAGE

121

1.1
Location : isDone
Killed by : none
removed call to java/lang/System::nanoTime → NO_COVERAGE

123

1.1
Location : isDone
Killed by : none
negated conditional → NO_COVERAGE

2.2
Location : isDone
Killed by : none
removed conditional - replaced equality check with false → NO_COVERAGE

3.3
Location : isDone
Killed by : none
removed conditional - replaced equality check with true → NO_COVERAGE

124

1.1
Location : isDone
Killed by : none
Removed assignment to member variable startTime → NO_COVERAGE

2.2
Location : isDone
Killed by : none
removed call to java/lang/Long::valueOf → NO_COVERAGE

127

1.1
Location : isDone
Killed by : none
Substituted 1 with 0 → NO_COVERAGE

2.2
Location : isDone
Killed by : none
removed conditional - replaced comparison check with true → NO_COVERAGE

3.3
Location : isDone
Killed by : none
negated conditional → NO_COVERAGE

4.4
Location : isDone
Killed by : none
changed conditional boundary → NO_COVERAGE

5.5
Location : isDone
Killed by : none
Substituted 0 with 1 → NO_COVERAGE

6.6
Location : isDone
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$2::isDone → NO_COVERAGE

7.7
Location : isDone
Killed by : none
removed call to java/lang/Long::longValue → NO_COVERAGE

8.8
Location : isDone
Killed by : none
Replaced long subtraction with addition → NO_COVERAGE

9.9
Location : isDone
Killed by : none
removed conditional - replaced comparison check with false → NO_COVERAGE

149

1.1
Location : <init>
Killed by : none
Removed assignment to member variable val$terminations → NO_COVERAGE

2.2
Location : and
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Terminations$3::<init> → NO_COVERAGE

3.3
Location : and
Killed by : none
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::and → NO_COVERAGE

154

1.1
Location : isDone
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$3::isDone → NO_COVERAGE

2.2
Location : isDone
Killed by : none
removed call to java/util/Arrays::stream → NO_COVERAGE

3.3
Location : isDone
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$3::isDone → NO_COVERAGE

155

1.1
Location : isDone
Killed by : none
removed call to java/util/stream/Stream::allMatch → NO_COVERAGE

2.2
Location : lambda$isDone$0
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$3::lambda$isDone$0 → NO_COVERAGE

3.3
Location : lambda$isDone$0
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$3::lambda$isDone$0 → NO_COVERAGE

4.4
Location : lambda$isDone$0
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Termination::isDone → NO_COVERAGE

178

1.1
Location : or
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Terminations$4::<init> → NO_COVERAGE

2.2
Location : or
Killed by : none
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::or → NO_COVERAGE

3.3
Location : <init>
Killed by : none
Removed assignment to member variable val$terminations → NO_COVERAGE

183

1.1
Location : isDone
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$4::isDone → NO_COVERAGE

2.2
Location : isDone
Killed by : none
removed call to java/util/Arrays::stream → NO_COVERAGE

3.3
Location : isDone
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$4::isDone → NO_COVERAGE

184

1.1
Location : lambda$isDone$0
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Termination::isDone → NO_COVERAGE

2.2
Location : lambda$isDone$0
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$4::lambda$isDone$0 → NO_COVERAGE

3.3
Location : isDone
Killed by : none
removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE

4.4
Location : lambda$isDone$0
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$4::lambda$isDone$0 → NO_COVERAGE

204

1.1
Location : ofFitnessAtLeast
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Terminations$5::<init> → NO_COVERAGE

2.2
Location : ofFitnessAtLeast
Killed by : none
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofFitnessAtLeast → NO_COVERAGE

3.3
Location : <init>
Killed by : none
Removed assignment to member variable val$threshold → NO_COVERAGE

211

1.1
Location : isDone
Killed by : none
removed call to java/util/List::stream → NO_COVERAGE

2.2
Location : isDone
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$5::isDone → NO_COVERAGE

3.3
Location : isDone
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$5::isDone → NO_COVERAGE

212

1.1
Location : lambda$isDone$0
Killed by : none
removed conditional - replaced comparison check with false → NO_COVERAGE

2.2
Location : lambda$isDone$0
Killed by : none
removed call to java/lang/Comparable::compareTo → NO_COVERAGE

3.3
Location : lambda$isDone$0
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$5::lambda$isDone$0 → NO_COVERAGE

4.4
Location : isDone
Killed by : none
removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE

5.5
Location : lambda$isDone$0
Killed by : none
Substituted 1 with 0 → NO_COVERAGE

6.6
Location : lambda$isDone$0
Killed by : none
changed conditional boundary → NO_COVERAGE

7.7
Location : lambda$isDone$0
Killed by : none
removed conditional - replaced comparison check with true → NO_COVERAGE

8.8
Location : lambda$isDone$0
Killed by : none
negated conditional → NO_COVERAGE

9.9
Location : lambda$isDone$0
Killed by : none
Substituted 0 with 1 → NO_COVERAGE

231

1.1
Location : <init>
Killed by : none
Removed assignment to member variable val$threshold → NO_COVERAGE

2.2
Location : ofFitnessAtMost
Killed by : none
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofFitnessAtMost → NO_COVERAGE

3.3
Location : ofFitnessAtMost
Killed by : none
removed call to net/bmahe/genetics4j/core/termination/Terminations$6::<init> → NO_COVERAGE

238

1.1
Location : isDone
Killed by : none
removed call to java/util/List::stream → NO_COVERAGE

2.2
Location : isDone
Killed by : none
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$6::isDone → NO_COVERAGE

3.3
Location : isDone
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$6::isDone → NO_COVERAGE

239

1.1
Location : lambda$isDone$0
Killed by : none
Substituted 0 with 1 → NO_COVERAGE

2.2
Location : lambda$isDone$0
Killed by : none
removed call to java/lang/Comparable::compareTo → NO_COVERAGE

3.3
Location : lambda$isDone$0
Killed by : none
removed conditional - replaced comparison check with false → NO_COVERAGE

4.4
Location : lambda$isDone$0
Killed by : none
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$6::lambda$isDone$0 → NO_COVERAGE

5.5
Location : isDone
Killed by : none
removed call to java/util/stream/Stream::anyMatch → NO_COVERAGE

6.6
Location : lambda$isDone$0
Killed by : none
changed conditional boundary → NO_COVERAGE

7.7
Location : lambda$isDone$0
Killed by : none
Substituted 1 with 0 → NO_COVERAGE

8.8
Location : lambda$isDone$0
Killed by : none
removed conditional - replaced comparison check with true → NO_COVERAGE

9.9
Location : lambda$isDone$0
Killed by : none
negated conditional → NO_COVERAGE

266

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Removed assignment to member variable val$stableGenerationsCount → KILLED

2.2
Location : ofStableFitness
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to net/bmahe/genetics4j/core/termination/Terminations$7::<init> → KILLED

3.3
Location : ofStableFitness
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
replaced return value with null for net/bmahe/genetics4j/core/termination/Terminations::ofStableFitness → KILLED

268

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Removed assignment to member variable lastImprovedGeneration → KILLED

2.2
Location : <init>
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Substituted -1 with 0 → KILLED

269

1.1
Location : <init>
Killed by : none
Removed assignment to member variable lastBestFitness → SURVIVED
Covering tests

276

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to net/bmahe/genetics4j/core/spec/AbstractEAConfiguration::fitnessComparator → KILLED

278

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to java/util/List::stream → KILLED

279

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to java/util/stream/Stream::max → KILLED

281

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
changed conditional boundary → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Substituted 0 with 1 → KILLED

3.3
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
negated conditional → KILLED

4.4
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced comparison check with true → KILLED

5.5
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced comparison check with false → KILLED

282

1.1
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
negated conditional → KILLED

2.2
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced comparison check with true → KILLED

3.3
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Substituted 0 with 1 → KILLED

4.4
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
changed conditional boundary → KILLED

5.5
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
replaced call to java/util/Optional::map with receiver → KILLED

6.6
Location : isDone
Killed by : none
Substituted 0 with 1 → SURVIVED
Covering tests

7.7
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
removed call to java/util/Comparator::compare → KILLED

8.8
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
Substituted 1 with 0 → KILLED

9.9
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to java/util/Optional::map → KILLED

10.10
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
removed conditional - replaced comparison check with false → KILLED

11.11
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
replaced Boolean return with True for net/bmahe/genetics4j/core/termination/Terminations$7::lambda$isDone$0 → KILLED

12.12
Location : lambda$isDone$0
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
removed call to java/lang/Boolean::valueOf → KILLED

283

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
removed conditional - replaced equality check with false → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
removed call to java/lang/Boolean::booleanValue → KILLED

3.3
Location : isDone
Killed by : none
removed call to java/lang/Boolean::valueOf → SURVIVED
Covering tests

4.4
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
replaced call to java/util/Optional::orElse with argument → KILLED

5.5
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to java/util/Optional::orElse → KILLED

6.6
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
negated conditional → KILLED

7.7
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced equality check with true → KILLED

284

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Removed assignment to member variable lastImprovedGeneration → KILLED

285

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Removed assignment to member variable lastBestFitness → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed call to java/util/Optional::get → KILLED

288

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced comparison check with false → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
removed conditional - replaced comparison check with true → KILLED

3.3
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
changed conditional boundary → KILLED

4.4
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
negated conditional → KILLED

5.5
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessWithImprovement()]
Replaced long subtraction with addition → KILLED

289

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
replaced boolean return with false for net/bmahe/genetics4j/core/termination/Terminations$7::isDone → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Substituted 1 with 0 → KILLED

291

1.1
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
replaced boolean return with true for net/bmahe/genetics4j/core/termination/Terminations$7::isDone → KILLED

2.2
Location : isDone
Killed by : net.bmahe.genetics4j.core.termination.TerminationsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.termination.TerminationsTest]/[method:ofStableFitnessNoImprovement()]
Substituted 0 with 1 → KILLED

Active mutators

Tests examined


Report generated by PIT 1.20.3