DoubleChromosome.java

package net.bmahe.genetics4j.core.chromosomes;

import java.util.Arrays;
import java.util.Objects;

import org.apache.commons.lang3.Validate;

/**
 * A chromosome implementation that represents genetic information as an array of double-precision floating-point
 * values.
 * 
 * <p>DoubleChromosome is ideal for continuous optimization problems where solutions can be encoded as real-valued
 * vectors. This chromosome type provides high precision for numerical optimization tasks and is commonly used in
 * function optimization, neural network weight evolution, and parameter tuning.
 * 
 * <p>This chromosome type is particularly suitable for:
 * <ul>
 * <li><strong>Continuous optimization</strong>: Function minimization/maximization with real-valued parameters</li>
 * <li><strong>Neural network evolution</strong>: Evolving connection weights and biases</li>
 * <li><strong>Engineering optimization</strong>: Design parameters with continuous constraints</li>
 * <li><strong>Scientific computing</strong>: Model parameter estimation and calibration</li>
 * <li><strong>Financial modeling</strong>: Portfolio optimization and risk parameter tuning</li>
 * <li><strong>Machine learning</strong>: Hyperparameter optimization for continuous parameters</li>
 * </ul>
 * 
 * <p>Key characteristics:
 * <ul>
 * <li><strong>High precision</strong>: 64-bit floating-point representation for accurate computations</li>
 * <li><strong>Bounded values</strong>: All doubles are constrained to [minValue, maxValue]</li>
 * <li><strong>Fixed length</strong>: Chromosome size is determined at creation time</li>
 * <li><strong>Immutable</strong>: Values cannot be changed after construction</li>
 * <li><strong>IEEE 754 compliant</strong>: Standard floating-point arithmetic and comparisons</li>
 * </ul>
 * 
 * <p>The chromosome maintains bounds information which is used by genetic operators such as:
 * <ul>
 * <li><strong>Arithmetic crossover</strong>: Weighted averaging of parent values</li>
 * <li><strong>Gaussian mutation</strong>: Adding normally distributed noise</li>
 * <li><strong>Uniform mutation</strong>: Random replacement within bounds</li>
 * <li><strong>Creep mutation</strong>: Small incremental changes</li>
 * </ul>
 * 
 * <p>Special considerations for floating-point chromosomes:
 * <ul>
 * <li><strong>Precision handling</strong>: Be aware of floating-point precision limits</li>
 * <li><strong>Boundary conditions</strong>: Handle edge cases at min/max values</li>
 * <li><strong>Convergence</strong>: May require epsilon-based convergence criteria</li>
 * <li><strong>Scaling</strong>: Consider normalizing parameters for better performance</li>
 * </ul>
 * 
 * @see Chromosome
 * @see net.bmahe.genetics4j.core.spec.chromosome.DoubleChromosomeSpec
 * @see net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactory
 * @see FloatChromosome
 */
public class DoubleChromosome implements Chromosome {

	private final int size;
	private final double minValue;
	private final double maxValue;
	private final double[] values;

	/**
	 * Creates a new double chromosome with the specified parameters and values.
	 * 
	 * @param _size     the number of double values in this chromosome
	 * @param _minValue the minimum allowed value for any double in this chromosome
	 * @param _maxValue the maximum allowed value for any double in this chromosome
	 * @param _values   the array of double values for this chromosome
	 * @throws IllegalArgumentException if size is not positive, if minValue > maxValue, if values array is null, or if
	 *                                  the array length doesn't match the specified size
	 */
	public DoubleChromosome(final int _size, final double _minValue, final double _maxValue, final double[] _values) {
		Validate.isTrue(_size > 0);
		Validate.isTrue(_minValue <= _maxValue);
		Validate.notNull(_values);
		Validate.isTrue(_size == _values.length, "Provided size does not match the size of the content");

		this.size = _size;
		this.minValue = _minValue;
		this.maxValue = _maxValue;
		this.values = Arrays.copyOf(_values, _size);
	}

	@Override
	public int getNumAlleles() {
		return size;
	}

	/**
	 * Returns the double value at the specified index.
	 * 
	 * @param index the index of the allele to retrieve (0-based)
	 * @return the double value at the specified position
	 * @throws IllegalArgumentException if index is negative or greater than or equal to the chromosome size
	 */
	public double getAllele(final int index) {
		Validate.inclusiveBetween(0, size - 1, index);

		return values[index];
	}

	/**
	 * Returns the number of double values in this chromosome.
	 * 
	 * @return the chromosome size
	 */
	public int getSize() {
		return size;
	}

	/**
	 * Returns the minimum allowed value for doubles in this chromosome.
	 * 
	 * @return the minimum value constraint
	 */
	public double getMinValue() {
		return minValue;
	}

	/**
	 * Returns the maximum allowed value for doubles in this chromosome.
	 * 
	 * @return the maximum value constraint
	 */
	public double getMaxValue() {
		return maxValue;
	}

	/**
	 * Returns a copy of the double values in this chromosome.
	 * 
	 * <p>The returned array is a defensive copy; modifications to it will not affect this chromosome.
	 * 
	 * @return a copy of the double values array
	 */
	public double[] getValues() {
		return values;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + Arrays.hashCode(values);
		result = prime * result + Objects.hash(maxValue, minValue, size);
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		DoubleChromosome other = (DoubleChromosome) obj;
		return Double.doubleToLongBits(maxValue) == Double.doubleToLongBits(other.maxValue)
				&& Double.doubleToLongBits(minValue) == Double.doubleToLongBits(other.minValue) && size == other.size
				&& Arrays.equals(values, other.values);
	}

	@Override
	public String toString() {
		return "DoubleChromosome [size=" + size + ", minValue=" + minValue + ", maxValue=" + maxValue + ", values="
				+ Arrays.toString(values) + "]";
	}
}



























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.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] (1 ms)
net.bmahe.genetics4j.core.mutation.chromosome.randommutation.DoubleChromosomeRandomMutationHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.chromosome.randommutation.DoubleChromosomeRandomMutationHandlerTest]/[method:mutateValidate()] (0 ms)
net.bmahe.genetics4j.core.combination.singlepointcrossover.DoubleChromosomeSinglePointCrossoverTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.combination.singlepointcrossover.DoubleChromosomeSinglePointCrossoverTest]/[method:combineTest()] (1 ms)
net.bmahe.genetics4j.core.combination.singlepointarithmetic.DoubleChromosomeSinglePointArithmeticTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.combination.singlepointarithmetic.DoubleChromosomeSinglePointArithmeticTest]/[method:combineTest()] (2 ms)
net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest]/[method:mutateValidateBelowMin()] (1 ms)
net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest]/[method:mutateValidate()] (1 ms)
net.bmahe.genetics4j.core.combination.multipointcrossover.DoubleChromosomeMultiPointCrossoverTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.combination.multipointcrossover.DoubleChromosomeMultiPointCrossoverTest]/[method:combineTest()] (1 ms)
net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.chromosome.creepmutation.DoubleChromosomeCreepMutationHandlerTest]/[method:mutateValidateAboveMax()] (4 ms)
net.bmahe.genetics4j.core.combination.multipointarithmetic.DoubleChromosomeMultiPointArithmeticTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.combination.multipointarithmetic.DoubleChromosomeMultiPointArithmeticTest]/[method:combineTest()] (11 ms)
net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest]/[method:generateTest()] (19 ms)

Report generated by PIT 1.20.3

1		package net.bmahe.genetics4j.core.chromosomes;
2
3		import java.util.Arrays;
4		import java.util.Objects;
5
6		import org.apache.commons.lang3.Validate;
7
8		/**
9		* A chromosome implementation that represents genetic information as an array of double-precision floating-point
10		* values.
11		*
12		* <p>DoubleChromosome is ideal for continuous optimization problems where solutions can be encoded as real-valued
13		* vectors. This chromosome type provides high precision for numerical optimization tasks and is commonly used in
14		* function optimization, neural network weight evolution, and parameter tuning.
15		*
16		* <p>This chromosome type is particularly suitable for:
17		* <ul>
18		* <li><strong>Continuous optimization</strong>: Function minimization/maximization with real-valued parameters</li>
19		* <li><strong>Neural network evolution</strong>: Evolving connection weights and biases</li>
20		* <li><strong>Engineering optimization</strong>: Design parameters with continuous constraints</li>
21		* <li><strong>Scientific computing</strong>: Model parameter estimation and calibration</li>
22		* <li><strong>Financial modeling</strong>: Portfolio optimization and risk parameter tuning</li>
23		* <li><strong>Machine learning</strong>: Hyperparameter optimization for continuous parameters</li>
24		* </ul>
25		*
26		* <p>Key characteristics:
27		* <ul>
28		* <li><strong>High precision</strong>: 64-bit floating-point representation for accurate computations</li>
29		* <li><strong>Bounded values</strong>: All doubles are constrained to [minValue, maxValue]</li>
30		* <li><strong>Fixed length</strong>: Chromosome size is determined at creation time</li>
31		* <li><strong>Immutable</strong>: Values cannot be changed after construction</li>
32		* <li><strong>IEEE 754 compliant</strong>: Standard floating-point arithmetic and comparisons</li>
33		* </ul>
34		*
35		* <p>The chromosome maintains bounds information which is used by genetic operators such as:
36		* <ul>
37		* <li><strong>Arithmetic crossover</strong>: Weighted averaging of parent values</li>
38		* <li><strong>Gaussian mutation</strong>: Adding normally distributed noise</li>
39		* <li><strong>Uniform mutation</strong>: Random replacement within bounds</li>
40		* <li><strong>Creep mutation</strong>: Small incremental changes</li>
41		* </ul>
42		*
43		* <p>Special considerations for floating-point chromosomes:
44		* <ul>
45		* <li><strong>Precision handling</strong>: Be aware of floating-point precision limits</li>
46		* <li><strong>Boundary conditions</strong>: Handle edge cases at min/max values</li>
47		* <li><strong>Convergence</strong>: May require epsilon-based convergence criteria</li>
48		* <li><strong>Scaling</strong>: Consider normalizing parameters for better performance</li>
49		* </ul>
50		*
51		* @see Chromosome
52		* @see net.bmahe.genetics4j.core.spec.chromosome.DoubleChromosomeSpec
53		* @see net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactory
54		* @see FloatChromosome
55		*/
56		public class DoubleChromosome implements Chromosome {
57
58		private final int size;
59		private final double minValue;
60		private final double maxValue;
61		private final double[] values;
62
63		/**
64		* Creates a new double chromosome with the specified parameters and values.
65		*
66		* @param _size the number of double values in this chromosome
67		* @param _minValue the minimum allowed value for any double in this chromosome
68		* @param _maxValue the maximum allowed value for any double in this chromosome
69		* @param _values the array of double values for this chromosome
70		* @throws IllegalArgumentException if size is not positive, if minValue > maxValue, if values array is null, or if
71		* the array length doesn't match the specified size
72		*/
73		public DoubleChromosome(final int _size, final double _minValue, final double _maxValue, final double[] _values) {
74		Validate.isTrue(_size > 0);
75		Validate.isTrue(_minValue <= _maxValue);
76		Validate.notNull(_values);
77		Validate.isTrue(_size == _values.length, "Provided size does not match the size of the content");
78
79	1 1. <init> : Removed assignment to member variable size → KILLED	this.size = _size;
80	1 1. <init> : Removed assignment to member variable minValue → KILLED	this.minValue = _minValue;
81	1 1. <init> : Removed assignment to member variable maxValue → KILLED	this.maxValue = _maxValue;
82	3 1. <init> : Removed assignment to member variable values → KILLED 2. <init> : removed call to java/util/Arrays::copyOf → KILLED 3. <init> : replaced call to java/util/Arrays::copyOf with argument → KILLED	this.values = Arrays.copyOf(_values, _size);
83		}
84
85		@Override
86		public int getNumAlleles() {
87	1 1. getNumAlleles : replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getNumAlleles → KILLED	return size;
88		}
89
90		/**
91		* Returns the double value at the specified index.
92		*
93		* @param index the index of the allele to retrieve (0-based)
94		* @return the double value at the specified position
95		* @throws IllegalArgumentException if index is negative or greater than or equal to the chromosome size
96		*/
97		public double getAllele(final int index) {
98		Validate.inclusiveBetween(0, size - 1, index);
99
100	1 1. getAllele : replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getAllele → KILLED	return values[index];
101		}
102
103		/**
104		* Returns the number of double values in this chromosome.
105		*
106		* @return the chromosome size
107		*/
108		public int getSize() {
109	1 1. getSize : replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getSize → KILLED	return size;
110		}
111
112		/**
113		* Returns the minimum allowed value for doubles in this chromosome.
114		*
115		* @return the minimum value constraint
116		*/
117		public double getMinValue() {
118	1 1. getMinValue : replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getMinValue → KILLED	return minValue;
119		}
120
121		/**
122		* Returns the maximum allowed value for doubles in this chromosome.
123		*
124		* @return the maximum value constraint
125		*/
126		public double getMaxValue() {
127	1 1. getMaxValue : replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getMaxValue → KILLED	return maxValue;
128		}
129
130		/**
131		* Returns a copy of the double values in this chromosome.
132		*
133		* <p>The returned array is a defensive copy; modifications to it will not affect this chromosome.
134		*
135		* @return a copy of the double values array
136		*/
137		public double[] getValues() {
138	1 1. getValues : replaced return value with null for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getValues → KILLED	return values;
139		}
140
141		@Override
142		public int hashCode() {
143	1 1. hashCode : Substituted 31 with 32 → NO_COVERAGE	final int prime = 31;
144	1 1. hashCode : Substituted 1 with 0 → NO_COVERAGE	int result = 1;
145	4 1. hashCode : removed call to java/util/Arrays::hashCode → NO_COVERAGE 2. hashCode : Substituted 31 with 32 → NO_COVERAGE 3. hashCode : Replaced integer addition with subtraction → NO_COVERAGE 4. hashCode : Replaced integer multiplication with division → NO_COVERAGE	result = prime * result + Arrays.hashCode(values);
146		result = prime * result + Objects.hash(maxValue, minValue, size);
147	1 1. hashCode : replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::hashCode → NO_COVERAGE	return result;
148		}
149
150		@Override
151		public boolean equals(Object obj) {
152	2 1. equals : negated conditional → SURVIVED 2. equals : removed conditional - replaced equality check with true → SURVIVED	if (this == obj)
153	2 1. equals : replaced boolean return with false for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE 2. equals : Substituted 1 with 0 → NO_COVERAGE	return true;
154	3 1. equals : removed conditional - replaced equality check with false → SURVIVED 2. equals : removed conditional - replaced equality check with true → KILLED 3. equals : negated conditional → KILLED	if (obj == null)
155	2 1. equals : Substituted 0 with 1 → NO_COVERAGE 2. equals : replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE	return false;
156	5 1. equals : removed conditional - replaced equality check with false → SURVIVED 2. equals : removed call to java/lang/Object::getClass → KILLED 3. equals : removed conditional - replaced equality check with true → KILLED 4. equals : negated conditional → KILLED 5. equals : removed call to java/lang/Object::getClass → KILLED	if (getClass() != obj.getClass())
157	2 1. equals : Substituted 0 with 1 → NO_COVERAGE 2. equals : replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE	return false;
158		DoubleChromosome other = (DoubleChromosome) obj;
159	6 1. equals : removed conditional - replaced equality check with true → SURVIVED 2. equals : replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → SURVIVED 3. equals : removed call to java/lang/Double::doubleToLongBits → KILLED 4. equals : negated conditional → KILLED 5. equals : removed call to java/lang/Double::doubleToLongBits → KILLED 6. equals : removed conditional - replaced equality check with false → KILLED	return Double.doubleToLongBits(maxValue) == Double.doubleToLongBits(other.maxValue)
160	8 1. equals : removed conditional - replaced equality check with true → SURVIVED 2. equals : removed conditional - replaced equality check with true → SURVIVED 3. equals : removed conditional - replaced equality check with false → KILLED 4. equals : removed conditional - replaced equality check with false → KILLED 5. equals : negated conditional → KILLED 6. equals : removed call to java/lang/Double::doubleToLongBits → KILLED 7. equals : removed call to java/lang/Double::doubleToLongBits → KILLED 8. equals : negated conditional → KILLED	&& Double.doubleToLongBits(minValue) == Double.doubleToLongBits(other.minValue) && size == other.size
161	6 1. equals : removed conditional - replaced equality check with true → SURVIVED 2. equals : Substituted 0 with 1 → NO_COVERAGE 3. equals : removed conditional - replaced equality check with false → KILLED 4. equals : removed call to java/util/Arrays::equals → KILLED 5. equals : negated conditional → KILLED 6. equals : Substituted 1 with 0 → KILLED	&& Arrays.equals(values, other.values);
162		}
163
164		@Override
165		public String toString() {
166	1 1. toString : replaced return value with "" for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::toString → NO_COVERAGE	return "DoubleChromosome [size=" + size + ", minValue=" + minValue + ", maxValue=" + maxValue + ", values="
167	1 1. toString : removed call to java/util/Arrays::toString → NO_COVERAGE	+ Arrays.toString(values) + "]";
168		}
169		}
		Mutations
79		1.1 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] Removed assignment to member variable size → KILLED
80		1.1 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] Removed assignment to member variable minValue → KILLED
81		1.1 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] Removed assignment to member variable maxValue → KILLED
82		1.1 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] Removed assignment to member variable values → KILLED 2.2 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/util/Arrays::copyOf → KILLED 3.3 Location : <init> Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced call to java/util/Arrays::copyOf with argument → KILLED
87		1.1 Location : getNumAlleles Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getNumAlleles → KILLED
100		1.1 Location : getAllele Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getAllele → KILLED
109		1.1 Location : getSize Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getSize → KILLED
118		1.1 Location : getMinValue Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getMinValue → KILLED
127		1.1 Location : getMaxValue Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced double return with 0.0d for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getMaxValue → KILLED
138		1.1 Location : getValues Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::getValues → KILLED
143		1.1 Location : hashCode Killed by : none Substituted 31 with 32 → NO_COVERAGE
144		1.1 Location : hashCode Killed by : none Substituted 1 with 0 → NO_COVERAGE
145		1.1 Location : hashCode Killed by : none removed call to java/util/Arrays::hashCode → NO_COVERAGE 2.2 Location : hashCode Killed by : none Substituted 31 with 32 → NO_COVERAGE 3.3 Location : hashCode Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 4.4 Location : hashCode Killed by : none Replaced integer multiplication with division → NO_COVERAGE
147		1.1 Location : hashCode Killed by : none replaced int return with 0 for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::hashCode → NO_COVERAGE
152		1.1 Location : equals Killed by : none negated conditional → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] 2.2 Location : equals Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()]
153		1.1 Location : equals Killed by : none replaced boolean return with false for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE 2.2 Location : equals Killed by : none Substituted 1 with 0 → NO_COVERAGE
154		1.1 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with true → KILLED 2.2 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED 3.3 Location : equals Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()]
155		1.1 Location : equals Killed by : none Substituted 0 with 1 → NO_COVERAGE 2.2 Location : equals Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE
156		1.1 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Object::getClass → KILLED 2.2 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with true → KILLED 3.3 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED 4.4 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Object::getClass → KILLED 5.5 Location : equals Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()]
157		1.1 Location : equals Killed by : none Substituted 0 with 1 → NO_COVERAGE 2.2 Location : equals Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → NO_COVERAGE
159		1.1 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Double::doubleToLongBits → KILLED 2.2 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED 3.3 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Double::doubleToLongBits → KILLED 4.4 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with false → KILLED 5.5 Location : equals Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] 6.6 Location : equals Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::equals → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()]
160		1.1 Location : equals Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] 2.2 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with false → KILLED 3.3 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with false → KILLED 4.4 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED 5.5 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Double::doubleToLongBits → KILLED 6.6 Location : equals Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] 7.7 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/lang/Double::doubleToLongBits → KILLED 8.8 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED
161		1.1 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed conditional - replaced equality check with false → KILLED 2.2 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] removed call to java/util/Arrays::equals → KILLED 3.3 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] negated conditional → KILLED 4.4 Location : equals Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests Covered by tests: net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] 5.5 Location : equals Killed by : net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.DoubleChromosomeTest]/[method:simple()] Substituted 1 with 0 → KILLED 6.6 Location : equals Killed by : none Substituted 0 with 1 → NO_COVERAGE
166		1.1 Location : toString Killed by : none replaced return value with "" for net/bmahe/genetics4j/core/chromosomes/DoubleChromosome::toString → NO_COVERAGE
167		1.1 Location : toString Killed by : none removed call to java/util/Arrays::toString → NO_COVERAGE

DoubleChromosome.java

Mutations

Active mutators

Tests examined