com.pholser.junit.quickcheck.generator.java.lang

Class ShortGenerator

java.lang.Object

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

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

com.pholser.junit.quickcheck.generator.java.lang.ShortGenerator

All Implemented Interfaces:

Gen<Short>, Shrink<Short>

public class ShortGenerator
extends IntegralGenerator<Short>

Produces values of type short or Short.

Constructor Summary

Constructors

Constructor and Description
ShortGenerator()

Method Summary

Modifier and Type	Method and Description
void	configure(InRange range) Tells this generator to produce values within a specified minimum and/or maximum, inclusive, with uniform distribution.
Short	generate(SourceOfRandomness random, GenerationStatus status)
protected Predicate<Short>	inRange()
protected Short	leastMagnitude()
BigDecimal	magnitude(Object value)
protected Function<BigInteger,Short>	narrow()
protected Short	negate(Short target) Used when shrinking negative numbers to add the positive equivalent value at the top of shrinks list.
protected boolean	negative(Short target)

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

doShrink, widen

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

addComponentGenerators, canGenerateForParametersOfTypes, canRegisterAsType, canShrink, compatibleWithTypeParameter, configurationAnnotationsOn, configure, configure, copy, gen, 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

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

Constructor Detail

ShortGenerator

public ShortGenerator()

Method Detail

configure

public void configure(InRange range)

Tells this generator to produce values within a specified minimum and/or maximum, inclusive, with uniform distribution. InRange.min() and InRange.max() take precedence over InRange.minShort() and InRange.maxShort(), if non-empty.

Parameters:

range - annotation that gives the range's constraints

generate

public Short generate(SourceOfRandomness random,
                      GenerationStatus status)

narrow

protected Function<BigInteger,Short> narrow()

Specified by:

narrow in class IntegralGenerator<Short>

Returns:

a function converting a BigInteger into the equivalent value in the base type

inRange

protected Predicate<Short> inRange()

Specified by:

inRange in class IntegralGenerator<Short>

Returns:

a predicate checking whether its input is in the configured range

leastMagnitude

protected Short leastMagnitude()

Specified by:

leastMagnitude in class IntegralGenerator<Short>

Returns:

the lowest magnitude number, respecting the configured range. The ideal shrink value is always this value (i.e. this value cannot be shrunk any further).

negative

protected boolean negative(Short target)

Specified by:

negative in class IntegralGenerator<Short>

Returns:

whether the given number is negative or not

negate

protected Short negate(Short target)

Description copied from class: IntegralGenerator

Used when shrinking negative numbers to add the positive equivalent value at the top of shrinks list.

Specified by:

negate in class IntegralGenerator<Short>

Parameters:

target - always a negative number

Returns:

the positive equivalent to target

magnitude

public BigDecimal magnitude(Object value)

Overrides:

magnitude in class Generator<Short>