com.pholser.junit.quickcheck.generator

Class IntegralGenerator<T extends Number>

java.lang.Object

com.pholser.junit.quickcheck.generator.Generator<T>

com.pholser.junit.quickcheck.generator.IntegralGenerator<T>

Type Parameters:

T - type of values this generator produces

All Implemented Interfaces:

Gen<T>, Shrink<T>

Direct Known Subclasses:

BigIntegerGenerator, ByteGenerator, IntegerGenerator, LongGenerator, ShortGenerator

public abstract class IntegralGenerator<T extends Number>
extends Generator<T>

Base class for generators of integral types, such as int and BigInteger.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IntegralGenerator(Class<T> type)
protected	IntegralGenerator(List<Class<T>> types)

Method Summary

Modifier and Type	Method and Description
List<T>	doShrink(SourceOfRandomness random, T larger)
protected abstract Predicate<T>	inRange()
protected abstract T	leastMagnitude()
protected abstract Function<BigInteger,T>	narrow()
protected abstract T	negate(T target)
protected abstract boolean	negative(T target)
protected Function<T,BigInteger>	widen()

Methods inherited from class com.pholser.junit.quickcheck.generator.Generator

addComponentGenerators, canGenerateForParametersOfTypes, canRegisterAsType, canShrink, compatibleWithTypeParameter, configurationAnnotationsOn, configure, configure, gen, hasComponents, narrow, numberOfNeededComponents, provide, shrink, types

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.pholser.junit.quickcheck.generator.Gen

filter, filterOptional, flatMap, freq, frequency, generate, map, oneOf, oneOf, pure, times

Constructor Detail

IntegralGenerator

protected IntegralGenerator(Class<T> type)

IntegralGenerator

protected IntegralGenerator(List<Class<T>> types)

Method Detail

doShrink

public List<T> doShrink(SourceOfRandomness random,
                        T larger)

Overrides:

doShrink in class Generator<T extends Number>

widen

protected Function<T,BigInteger> widen()

narrow

protected abstract Function<BigInteger,T> narrow()

inRange

protected abstract Predicate<T> inRange()

leastMagnitude

protected abstract T leastMagnitude()

negative

protected abstract boolean negative(T target)

negate

protected abstract T negate(T target)