A symbolic alias for zip
.
A symbolic alias for cross
.
Composes this generator with the specified generator to create a cartesian product of elements.
Composes this generator with the specified generator to create a cartesian product of elements with the specified function.
Filters the values produced by this generator, discarding any values that do not meet the specified predicate.
Filters the values produced by this generator, discarding any values that
do not meet the specified predicate. Using filter
can reduce test
performance, especially if many values must be discarded. It is
recommended to use combinators such as map
and flatMap
to create
generators of the desired values instead.
val evens: Gen[Random, Int] = Gen.anyInt.map(_ * 2)
Maps an effectual function over a generator.
Discards the shrinker for this generator.
Discards the shrinker for this generator and applies a new shrinker by mapping each value to a sample using the specified function.
Discards the shrinker for this generator and applies a new shrinker by mapping each value to a sample using the specified function. This is useful when the process to shrink a value is simpler than the process used to generate it.
Runs the generator and collects all of its values in a list.
Repeatedly runs the generator and collects the specified number of values in a list.
Runs the generator returning the first value of the generator.
Zips two generators together pairwise.
Zips two generators together pairwise. The new generator will generate elements as long as either generator is generating elements, running the other generator multiple times if necessary.
Zips two generators together pairwise with the specified function.
Zips two generators together pairwise with the specified function. The new generator will generate elements as long as either generator is generating elements, running the other generator multiple times if necessary.
A
Gen[R, A]
represents a generator of values of typeA
, which requires an environmentR
. Generators may be random or deterministic.