randoop.generation

Class GrtStringFuzzer

java.lang.Object

randoop.generation.GrtFuzzer

randoop.generation.GrtStringFuzzer

public final class GrtStringFuzzer
extends GrtFuzzer

Fuzzer that builds a mutated String literal by applying a GrtStringFuzzer.StringFuzzingOperation.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GrtStringFuzzer.StringFuzzingOperation Represents the fuzzing operations for Strings.

Field Summary

Fields

Modifier and Type	Field and Description
private static GrtStringFuzzer	INSTANCE Singleton instance.

Fields inherited from class randoop.generation.GrtFuzzer

NEGATIVE_INDEX_CACHE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	GrtStringFuzzer() Private constructor to enforce singleton.

Method Summary

Modifier and Type	Method and Description
boolean	canFuzz(Type type) Returns true if this fuzzer can handle the type.
Sequence	fuzz(Sequence sequence) Appends fuzzing statements to sequence.
static GrtStringFuzzer	getInstance() Obtain the singleton instance of GrtStringFuzzer.
private static java.lang.String	mutate(java.lang.String s) Mutate a string by applying a random operation.
private static char	randomPrintableChar() Returns a random printable ASCII character.

Methods inherited from class randoop.generation.GrtFuzzer

getFuzzer, getRelativeNegativeIndices

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

private static final GrtStringFuzzer INSTANCE

Singleton instance.

Constructor Detail

GrtStringFuzzer

private GrtStringFuzzer()

Private constructor to enforce singleton.

Method Detail

getInstance

public static GrtStringFuzzer getInstance()

Obtain the singleton instance of GrtStringFuzzer.

Returns:

the singleton instance

canFuzz

public boolean canFuzz(Type type)

Description copied from class: GrtFuzzer

Returns true if this fuzzer can handle the type.

Specified by:

canFuzz in class GrtFuzzer

Parameters:

type - the type to check

Returns:

true if this fuzzer can handle the type

fuzz

public Sequence fuzz(Sequence sequence)

Description copied from class: GrtFuzzer

Appends fuzzing statements to sequence. If the type is unsupported by this fuzzer, the implementation throws an exception.

Specified by:

fuzz in class GrtFuzzer

Parameters:

sequence - the sequence whose last value will be fuzzed

Returns:

a new sequence with additional fuzzing statements, or the original sequence if no fuzzing was performed

mutate

private static java.lang.String mutate(java.lang.String s)

Mutate a string by applying a random operation.

Parameters:

s - the string to mutate

Returns:

the mutated string

randomPrintableChar

private static char randomPrintableChar()

Returns a random printable ASCII character.

Returns:

a random printable ASCII character