RampedHalfAndHalfProgramGenerator.java

package net.bmahe.genetics4j.gp.program;

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

import org.apache.commons.lang3.Validate;

import net.bmahe.genetics4j.core.chromosomes.TreeNode;
import net.bmahe.genetics4j.gp.Operation;

public class RampedHalfAndHalfProgramGenerator implements ProgramGenerator {

	private final RandomGenerator randomGenerator;
	private final ProgramHelper programHelper;

	private final ProgramGenerator programGenerator;

	public RampedHalfAndHalfProgramGenerator(final RandomGenerator _randomGenerator,
			final ProgramHelper _programHelper) {
		Objects.requireNonNull(_randomGenerator);
		Objects.requireNonNull(_programHelper);

		this.randomGenerator = _randomGenerator;
		this.programHelper = _programHelper;

		final GrowProgramGenerator growProgramGenerator = new GrowProgramGenerator(programHelper);
		final FullProgramGenerator fullProgramGenerator = new FullProgramGenerator(programHelper);

		this.programGenerator = new MultiProgramGenerator(randomGenerator,
				List.of(fullProgramGenerator, growProgramGenerator));
	}

	@Override
	public TreeNode<Operation<?>> generate(final Program program) {
		Objects.requireNonNull(program);

		return programGenerator.generate(program);
	}

	@Override
	public <T> TreeNode<Operation<T>> generate(final Program program, final int maxDepth) {
		Objects.requireNonNull(program);
		Validate.isTrue(maxDepth > 0);

		final int newMaxDepth = 1 + randomGenerator.nextInt(maxDepth);
		return programGenerator.generate(program, newMaxDepth);
	}

	@Override
	public <T, U> TreeNode<Operation<T>> generate(final Program program, final int maxDepth, final Class<U> rootType) {
		Objects.requireNonNull(program);
		Objects.requireNonNull(rootType);
		Validate.isTrue(maxDepth > 0);

		final int newMaxDepth = 1 + randomGenerator.nextInt(maxDepth);
		return programGenerator.generate(program, newMaxDepth, rootType);
	}

}












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

Report generated by PIT 1.25.7 support

1		package net.bmahe.genetics4j.gp.program;
2
3		import java.util.List;
4		import java.util.Objects;
5		import java.util.random.RandomGenerator;
6
7		import org.apache.commons.lang3.Validate;
8
9		import net.bmahe.genetics4j.core.chromosomes.TreeNode;
10		import net.bmahe.genetics4j.gp.Operation;
11
12		public class RampedHalfAndHalfProgramGenerator implements ProgramGenerator {
13
14		private final RandomGenerator randomGenerator;
15		private final ProgramHelper programHelper;
16
17		private final ProgramGenerator programGenerator;
18
19		public RampedHalfAndHalfProgramGenerator(final RandomGenerator _randomGenerator,
20		final ProgramHelper _programHelper) {
21		Objects.requireNonNull(_randomGenerator);
22		Objects.requireNonNull(_programHelper);
23
24	1 1. <init> : Removed assignment to member variable randomGenerator → NO_COVERAGE	this.randomGenerator = _randomGenerator;
25	1 1. <init> : Removed assignment to member variable programHelper → NO_COVERAGE	this.programHelper = _programHelper;
26
27	1 1. <init> : removed call to net/bmahe/genetics4j/gp/program/GrowProgramGenerator::<init> → NO_COVERAGE	final GrowProgramGenerator growProgramGenerator = new GrowProgramGenerator(programHelper);
28	1 1. <init> : removed call to net/bmahe/genetics4j/gp/program/FullProgramGenerator::<init> → NO_COVERAGE	final FullProgramGenerator fullProgramGenerator = new FullProgramGenerator(programHelper);
29
30		this.programGenerator = new MultiProgramGenerator(randomGenerator,
31	3 1. <init> : removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::<init> → NO_COVERAGE 2. <init> : removed call to java/util/List::of → NO_COVERAGE 3. <init> : Removed assignment to member variable programGenerator → NO_COVERAGE	List.of(fullProgramGenerator, growProgramGenerator));
32		}
33
34		@Override
35		public TreeNode<Operation<?>> generate(final Program program) {
36		Objects.requireNonNull(program);
37
38	2 1. generate : replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE 2. generate : removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program);
39		}
40
41		@Override
42		public <T> TreeNode<Operation<T>> generate(final Program program, final int maxDepth) {
43		Objects.requireNonNull(program);
44		Validate.isTrue(maxDepth > 0);
45
46	4 1. generate : Substituted 1 with 0 → NO_COVERAGE 2. generate : replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3. generate : Replaced integer addition with subtraction → NO_COVERAGE 4. generate : removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE	final int newMaxDepth = 1 + randomGenerator.nextInt(maxDepth);
47	2 1. generate : removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE 2. generate : replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program, newMaxDepth);
48		}
49
50		@Override
51		public <T, U> TreeNode<Operation<T>> generate(final Program program, final int maxDepth, final Class<U> rootType) {
52		Objects.requireNonNull(program);
53		Objects.requireNonNull(rootType);
54		Validate.isTrue(maxDepth > 0);
55
56	4 1. generate : removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE 2. generate : replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3. generate : Substituted 1 with 0 → NO_COVERAGE 4. generate : Replaced integer addition with subtraction → NO_COVERAGE	final int newMaxDepth = 1 + randomGenerator.nextInt(maxDepth);
57	2 1. generate : removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE 2. generate : replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program, newMaxDepth, rootType);
58		}
59
60		}
		Mutations
24		1.1 Location : <init> Killed by : none Removed assignment to member variable randomGenerator → NO_COVERAGE
25		1.1 Location : <init> Killed by : none Removed assignment to member variable programHelper → NO_COVERAGE
27		1.1 Location : <init> Killed by : none removed call to net/bmahe/genetics4j/gp/program/GrowProgramGenerator::<init> → NO_COVERAGE
28		1.1 Location : <init> Killed by : none removed call to net/bmahe/genetics4j/gp/program/FullProgramGenerator::<init> → NO_COVERAGE
31		1.1 Location : <init> Killed by : none removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::<init> → NO_COVERAGE 2.2 Location : <init> Killed by : none removed call to java/util/List::of → NO_COVERAGE 3.3 Location : <init> Killed by : none Removed assignment to member variable programGenerator → NO_COVERAGE
38		1.1 Location : generate Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE 2.2 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE
46		1.1 Location : generate Killed by : none Substituted 1 with 0 → NO_COVERAGE 2.2 Location : generate Killed by : none replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3.3 Location : generate Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 4.4 Location : generate Killed by : none removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE
47		1.1 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE 2.2 Location : generate Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE
56		1.1 Location : generate Killed by : none removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE 2.2 Location : generate Killed by : none replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3.3 Location : generate Killed by : none Substituted 1 with 0 → NO_COVERAGE 4.4 Location : generate Killed by : none Replaced integer addition with subtraction → NO_COVERAGE
57		1.1 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE 2.2 Location : generate Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/RampedHalfAndHalfProgramGenerator::generate → NO_COVERAGE

RampedHalfAndHalfProgramGenerator.java

Mutations

Active mutators

Tests examined