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

Class FloatGenerator

java.lang.Object

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

com.pholser.junit.quickcheck.generator.DecimalGenerator<Float>

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

All Implemented Interfaces:

Gen<Float>, Shrink<Float>

public class FloatGenerator
extends DecimalGenerator<Float>

Produces values of type float or Float.

Constructor Summary

Constructors

Constructor and Description
FloatGenerator()

Method Summary

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

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

doShrink

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

FloatGenerator

public FloatGenerator()

Method Detail

configure

public void configure(InRange range)

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

Parameters:

range - annotation that gives the range's constraints

generate

public Float generate(SourceOfRandomness random,
                      GenerationStatus status)

widen

protected Function<Float,BigDecimal> widen()

Specified by:

widen in class DecimalGenerator<Float>

Returns:

a function converting a value of the base type into a BigDecimal

narrow

protected Function<BigDecimal,Float> narrow()

Specified by:

narrow in class DecimalGenerator<Float>

Returns:

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

inRange

protected Predicate<Float> inRange()

Specified by:

inRange in class DecimalGenerator<Float>

Returns:

a predicate checking whether its input is in the configured range

leastMagnitude

protected Float leastMagnitude()

Specified by:

leastMagnitude in class DecimalGenerator<Float>

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(Float target)

Specified by:

negative in class DecimalGenerator<Float>

Returns:

whether the given number is negative or not

negate

protected Float negate(Float target)

Description copied from class: DecimalGenerator

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

Specified by:

negate in class DecimalGenerator<Float>

Parameters:

target - always a negative number

Returns:

the positive equivalent to target

magnitude

public BigDecimal magnitude(Object value)

Overrides:

magnitude in class Generator<Float>