Package de.rwth.swc.coffee4j.algorithmic.classification

Class MaxCountClassificationStrategy

java.lang.Object

de.rwth.swc.coffee4j.algorithmic.classification.MaxCountClassificationStrategy

All Implemented Interfaces:

ClassificationStrategy

public class MaxCountClassificationStrategy
extends Object
implements ClassificationStrategy

ClassificationStrategy that classifies the found exception-inducing combinations using the maximum number of test inputs that trigger the same exception and contain the corresponding combination.

Constructor Summary

Constructors

Constructor	Description
MaxCountClassificationStrategy(ClassificationConfiguration configuration)	Constructor using a ClassificationConfiguration

Method Summary

Modifier and Type	Method	Description
Optional<int[]>	generateNextTestInputForClassification(int[] testInput, TestResult result)
Map<int[],Class<? extends Throwable>>	getClassifiedExceptionInducingCombinations()
static ClassificationStrategyFactory	maxCountClassificationStrategy()
Optional<int[]>	startClassification(Map<int[],Throwable> errorConstraintExceptionCausingTestInputs, List<int[]> exceptionInducingCombinationsToClassify, Set<int[]> possiblyFailureInducingCombinations)	initializes the strategy.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MaxCountClassificationStrategy

public MaxCountClassificationStrategy(ClassificationConfiguration configuration)

Constructor using a ClassificationConfiguration

Parameters:

configuration - provided configuration.

Method Detail

maxCountClassificationStrategy

public static ClassificationStrategyFactory maxCountClassificationStrategy()

Returns:

returns factory for this class.

startClassification

public Optional<int[]> startClassification(Map<int[],Throwable> errorConstraintExceptionCausingTestInputs,
                                           List<int[]> exceptionInducingCombinationsToClassify,
                                           Set<int[]> possiblyFailureInducingCombinations)

Description copied from interface: ClassificationStrategy

initializes the strategy.

Specified by:

startClassification in interface ClassificationStrategy

Parameters:

errorConstraintExceptionCausingTestInputs - all test inputs that result in an ErrorConstraintException

exceptionInducingCombinationsToClassify - all exception-inducing combinations that are found during generation

possiblyFailureInducingCombinations - all possibly failure-inducing combinations that are found during generation

Returns:

all classified exception-inducing combinations. If a combination cannot be classified, it is classified as ErrorConstraintException.

generateNextTestInputForClassification

public Optional<int[]> generateNextTestInputForClassification(int[] testInput,
                                                              TestResult result)

Specified by:

generateNextTestInputForClassification in interface ClassificationStrategy

Parameters:

testInput - last executed test input

result - result of last executed test input

Returns:

next test input to execute that is needed for classification

getClassifiedExceptionInducingCombinations

public Map<int[],Class<? extends Throwable>> getClassifiedExceptionInducingCombinations()

Specified by:

getClassifiedExceptionInducingCombinations in interface ClassificationStrategy

Returns:

returns all classified exception-inducing combinations. ErrorConstraintException indicates that no classification is possible for the related combination