RampedHalfAndHalfProgramGenerator.java

package net.bmahe.genetics4j.gp.program;

import java.util.List;
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) {
		Validate.notNull(_randomGenerator);
		Validate.notNull(_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) {
		Validate.notNull(program);

		return programGenerator.generate(program);
	}

	@Override
	public <T> TreeNode<Operation<T>> generate(final Program program, final int maxDepth) {
		Validate.notNull(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) {
		Validate.notNull(program);
		Validate.notNull(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 1.19.6

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