MultiProgramGenerator.java

package net.bmahe.genetics4j.gp.program;

import java.util.ArrayList;
import java.util.Collection;
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 MultiProgramGenerator implements ProgramGenerator {

	private final List<ProgramGenerator> programGenerators = new ArrayList<>();

	private final RandomGenerator randomGenerator;

	public MultiProgramGenerator(final RandomGenerator _randomGenerator,
			final Collection<ProgramGenerator> _programGenerators) {
		Objects.requireNonNull(_randomGenerator);
		Objects.requireNonNull(_programGenerators);
		Validate.isTrue(_programGenerators.isEmpty() == false, "At least one program generator must be provided");

		this.randomGenerator = _randomGenerator;
		this.programGenerators.addAll(_programGenerators);
	}

	private ProgramGenerator pickProgramGenerator() {
		final int programGeneratorIndex = randomGenerator.nextInt(programGenerators.size());

		return programGenerators.get(programGeneratorIndex);
	}

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

		final ProgramGenerator programGenerator = pickProgramGenerator();
		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 ProgramGenerator programGenerator = pickProgramGenerator();
		return programGenerator.generate(program, maxDepth);
	}

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

		final ProgramGenerator programGenerator = pickProgramGenerator();
		return programGenerator.generate(program, maxDepth, 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.ArrayList;
4		import java.util.Collection;
5		import java.util.List;
6		import java.util.Objects;
7		import java.util.random.RandomGenerator;
8
9		import org.apache.commons.lang3.Validate;
10
11		import net.bmahe.genetics4j.core.chromosomes.TreeNode;
12		import net.bmahe.genetics4j.gp.Operation;
13
14		public class MultiProgramGenerator implements ProgramGenerator {
15
16	2 1. <init> : removed call to java/util/ArrayList::<init> → NO_COVERAGE 2. <init> : Removed assignment to member variable programGenerators → NO_COVERAGE	private final List<ProgramGenerator> programGenerators = new ArrayList<>();
17
18		private final RandomGenerator randomGenerator;
19
20		public MultiProgramGenerator(final RandomGenerator _randomGenerator,
21		final Collection<ProgramGenerator> _programGenerators) {
22		Objects.requireNonNull(_randomGenerator);
23		Objects.requireNonNull(_programGenerators);
24		Validate.isTrue(_programGenerators.isEmpty() == false, "At least one program generator must be provided");
25
26	1 1. <init> : Removed assignment to member variable randomGenerator → NO_COVERAGE	this.randomGenerator = _randomGenerator;
27	1 1. <init> : removed call to java/util/List::addAll → NO_COVERAGE	this.programGenerators.addAll(_programGenerators);
28		}
29
30		private ProgramGenerator pickProgramGenerator() {
31	3 1. pickProgramGenerator : removed call to java/util/List::size → NO_COVERAGE 2. pickProgramGenerator : replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3. pickProgramGenerator : removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE	final int programGeneratorIndex = randomGenerator.nextInt(programGenerators.size());
32
33	2 1. pickProgramGenerator : removed call to java/util/List::get → NO_COVERAGE 2. pickProgramGenerator : replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE	return programGenerators.get(programGeneratorIndex);
34		}
35
36		@Override
37		public TreeNode<Operation<?>> generate(final Program program) {
38		Objects.requireNonNull(program);
39
40	1 1. generate : removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE	final ProgramGenerator programGenerator = pickProgramGenerator();
41	2 1. generate : replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::generate → NO_COVERAGE 2. generate : removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program);
42		}
43
44		@Override
45		public <T> TreeNode<Operation<T>> generate(final Program program, final int maxDepth) {
46		Objects.requireNonNull(program);
47		Validate.isTrue(maxDepth > 0);
48
49	1 1. generate : removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE	final ProgramGenerator programGenerator = pickProgramGenerator();
50	2 1. generate : replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::generate → NO_COVERAGE 2. generate : removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program, maxDepth);
51		}
52
53		@Override
54		public <T, U> TreeNode<Operation<T>> generate(final Program program, final int maxDepth, final Class<U> rootType) {
55		Objects.requireNonNull(program);
56		Validate.isTrue(maxDepth > 0);
57		Objects.requireNonNull(program);
58
59	1 1. generate : removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE	final ProgramGenerator programGenerator = pickProgramGenerator();
60	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/MultiProgramGenerator::generate → NO_COVERAGE	return programGenerator.generate(program, maxDepth, rootType);
61		}
62		}
		Mutations
16		1.1 Location : <init> Killed by : none removed call to java/util/ArrayList::<init> → NO_COVERAGE 2.2 Location : <init> Killed by : none Removed assignment to member variable programGenerators → NO_COVERAGE
26		1.1 Location : <init> Killed by : none Removed assignment to member variable randomGenerator → NO_COVERAGE
27		1.1 Location : <init> Killed by : none removed call to java/util/List::addAll → NO_COVERAGE
31		1.1 Location : pickProgramGenerator Killed by : none removed call to java/util/List::size → NO_COVERAGE 2.2 Location : pickProgramGenerator Killed by : none replaced call to java/util/random/RandomGenerator::nextInt with argument → NO_COVERAGE 3.3 Location : pickProgramGenerator Killed by : none removed call to java/util/random/RandomGenerator::nextInt → NO_COVERAGE
33		1.1 Location : pickProgramGenerator Killed by : none removed call to java/util/List::get → NO_COVERAGE 2.2 Location : pickProgramGenerator Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE
40		1.1 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE
41		1.1 Location : generate Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::generate → NO_COVERAGE 2.2 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE
49		1.1 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE
50		1.1 Location : generate Killed by : none replaced return value with null for net/bmahe/genetics4j/gp/program/MultiProgramGenerator::generate → NO_COVERAGE 2.2 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/ProgramGenerator::generate → NO_COVERAGE
59		1.1 Location : generate Killed by : none removed call to net/bmahe/genetics4j/gp/program/MultiProgramGenerator::pickProgramGenerator → NO_COVERAGE
60		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/MultiProgramGenerator::generate → NO_COVERAGE

MultiProgramGenerator.java

Mutations

Active mutators

Tests examined