Package net.jqwik.api

Interface RandomGenerator<T>

@API(status=STABLE,
     since="1.0")
public interface RandomGenerator<T>

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	RandomGenerator.RandomGeneratorFacade

Method Summary

Modifier and Type	Method	Description
default RandomGenerator<java.util.List<T>>	collect(java.util.function.Predicate<java.util.List<T>> until)
default RandomGenerator<T>	dontShrink()
default RandomGenerator<T>	filter(java.util.function.Predicate<T> filterPredicate, int maxMisses)
default <U> RandomGenerator<U>	flatMap(java.util.function.Function<T,Arbitrary<U>> mapper, int genSize, boolean withEmbeddedEdgeCases)
default <U> RandomGenerator<U>	flatMap(java.util.function.Function<T,RandomGenerator<U>> mapper)
default RandomGenerator<T>	ignoreExceptions(int maxThrows, java.lang.Class<? extends java.lang.Throwable>[] exceptionTypes)
default RandomGenerator<T>	injectDuplicates(double duplicateProbability)
default <U> RandomGenerator<U>	map(java.util.function.Function<T,U> mapper)
default <U> RandomGenerator<U>	mapShrinkable(java.util.function.Function<Shrinkable<T>,Shrinkable<U>> mapper)
Shrinkable<T>	next(java.util.Random random)
default java.util.stream.Stream<Shrinkable<T>>	stream(java.util.Random random)
default RandomGenerator<T>	withEdgeCases(int genSize, EdgeCases<T> edgeCases)

Method Detail

next

Shrinkable<T> next(java.util.Random random)

Parameters:

random - the source of randomness. Injected by jqwik itself.

Returns:

the next generated value wrapped within the Shrinkable interface. The method must ALWAYS return a next value.

map

@API(status=INTERNAL)
default <U> RandomGenerator<U> map(java.util.function.Function<T,U> mapper)

mapShrinkable

@API(status=INTERNAL)
default <U> RandomGenerator<U> mapShrinkable(java.util.function.Function<Shrinkable<T>,Shrinkable<U>> mapper)

flatMap

@API(status=INTERNAL)
default <U> RandomGenerator<U> flatMap(java.util.function.Function<T,RandomGenerator<U>> mapper)

flatMap

@API(status=INTERNAL)
default <U> RandomGenerator<U> flatMap(java.util.function.Function<T,Arbitrary<U>> mapper,
                                       int genSize,
                                       boolean withEmbeddedEdgeCases)

filter

@API(status=INTERNAL)
default RandomGenerator<T> filter(java.util.function.Predicate<T> filterPredicate,
                                  int maxMisses)

withEdgeCases

@API(status=INTERNAL)
default RandomGenerator<T> withEdgeCases(int genSize,
                                         EdgeCases<T> edgeCases)

stream

@API(status=INTERNAL)
default java.util.stream.Stream<Shrinkable<T>> stream(java.util.Random random)

collect

@API(status=INTERNAL)
default RandomGenerator<java.util.List<T>> collect(java.util.function.Predicate<java.util.List<T>> until)

injectDuplicates

@API(status=INTERNAL)
default RandomGenerator<T> injectDuplicates(double duplicateProbability)

ignoreExceptions

@API(status=INTERNAL)
default RandomGenerator<T> ignoreExceptions(int maxThrows,
                                            java.lang.Class<? extends java.lang.Throwable>[] exceptionTypes)

dontShrink

@API(status=INTERNAL)
default RandomGenerator<T> dontShrink()