Gen

The names of the product elements

The name of the type

A generator of alphanumeric strings whose size falls within the specified bounds.

A generator of US-ASCII characters. Shrinks toward '0'.

A generator US-ASCII strings. Shrinks towards the empty string.

A generator of strings. Shrinks towards the empty string.

A generator of big decimals inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

The values generated will have a precision equal to the precision of the difference between max and min.

A generator of java.math.BigDecimal inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A generator of big integers inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A generator of java.math.BigInteger inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A generator whose size falls within the specified bounds.

A generator of byte values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A generator of character values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A sized generator of chunks.

A sized generator of non-empty chunks.

A generator of chunks whose size falls within the specified bounds.

A generator of chunks of the specified size.

Combines the specified deterministic generators to return a new deterministic generator that generates all of the values generated by the specified generators.

A constant generator of the specified value.

A constant generator of the specified sample.

Composes the specified generators to create a cartesian product of elements with the specified function.

Composes the specified generators to create a cartesian product of elements with the specified function.

Composes the specified generators to create a cartesian product of elements with the specified function.

Composes the specified generators to create a cartesian product of elements with the specified function.

A generator of double values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

Constructs a generator from an effect that constructs a value.

Constructs a generator from an effect that constructs a sample.

Constructs a deterministic generator that only generates the specified fixed values.

Constructs a generator from a function that uses randomness. The returned generator will not have any shrinking.

Constructs a generator from a function that uses randomness to produce a sample.

A generator of integers inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A sized generator that uses a uniform distribution of size values. A large number of larger sizes will be generated.

A generator of lists whose size falls within the specified bounds.

A generator of long values in the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A sized generator of maps.

A sized generator of non-empty maps.

A generator of maps whose size falls within the specified bounds.

A generator of maps of the specified size.

A sized generator that uses an exponential distribution of size values. The majority of sizes will be towards the lower end of the range but some larger sizes will be generated as well.

A generator of optional values. Shrinks toward None.

Constructs a generator of partial functions from A to B given a generator of B values. Two A values will be considered to be equal, and thus will be guaranteed to generate the same B value or both be outside the partial function's domain, if they have the same hashCode.

Constructs a generator of partial functions from A to B given a generator of B values and a hashing function for A values. Two A values will be considered to be equal, and thus will be guaranteed to generate the same B value or both be outside the partial function's domain, if they have have the same hash. This is useful when A does not implement hashCode in a way that is consistent with equality.

A sized generator of sets.

A sized generator of non-empty sets.

A generator of sets whose size falls within the specified bounds.

A generator of sets of the specified size.

A generator of short values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").

A sized generator, whose size falls within the specified bounds.

A sized generator that uses an exponential distribution of size values. The values generated will be strongly concentrated towards the lower end of the range but a few larger values will still be generated.

A generator of strings whose size falls within the specified bounds.

Lazily constructs a generator. This is useful to avoid infinite recursion when creating generators that refer to themselves.

A sized generator of collections, where each collection is generated by repeatedly applying a function to an initial state.

A generator of collections of up to the specified size, where each collection is generated by repeatedly applying a function to an initial state.

A generator of uniformly distributed doubles between [0, 1]. The shrinker will shrink toward 0.

A generator of vectors whose size falls within the specified bounds.

A generator which chooses one of the given generators according to their weights. For example, the following generator will generate 90% true and 10% false values.

val trueFalse = Gen.weighted((Gen.const(true), 9), (Gen.const(false), 1))

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

Zips the specified generators together pairwise. The new generator will generate elements as long as any generator is generating elements, running the other generators multiple times if necessary.

A generator of java.time.DayOfWeek values. Shrinks toward DayOfWeek.MONDAY.

A generator of finite zio.duration.Duration values. Shrinks toward Duration.Zero.

A generator of java.time.Instant values. Shrinks toward Instant.MIN.

A generator of java.time.LocalDate values. Shrinks toward LocalDate.MIN.

A generator of java.time.LocalDateTime values. Shrinks toward LocalDateTime.MIN.

A generator of java.time.LocalTime values. Shrinks toward LocalTime.MIN.

A generator of java.time.Month values. Shrinks toward Month.JANUARY.

A generator of java.time.MonthDay values. Shrinks toward MonthDay.of(Month.JANUARY, 1).

A generator of java.time.OffsetDateTime values. Shrinks toward OffsetDateTime.MIN.

A generator of java.time.OffsetTime values. Shrinks torward OffsetTime.MIN.

A generator of java.time.Period values. Shrinks toward Period.ZERO.

A generator of java.time.Year values. Shrinks toward Year.of(Year.MIN_VALUE).

A generator of java.time.YearMonth values. Shrinks toward YearMonth.of(Year.MIN_VALUE, Month.JANUARY).

A generator of java.time.ZoneId values. Doesn't have any shrinking.

A generator of java.time.ZoneOffset values. Shrinks toward ZoneOffset.MIN.

A generator of java.time.ZonedDateTime values. Shrinks toward ZoneDateTime.of(LocalDateTime.MIN, zoneId).

A generator of Cause values

A generator of effects that are the result of chaining the specified effect with itself a random number of times.

A generator of effects that are the result of chaining the specified effect with itself a given number of times.

A generator of effects that are the result of applying concurrency combinators to the specified effect that are guaranteed not to change its value.

A generator of effects that have died with a Throwable.

A generator of effects that have failed with an error.

A generator of finite zio.duration.Duration values inside the specified range: [min, max]. Shrinks toward min.

Constructs a generator of functions from A to B given a generator of B values. Two A values will be considered to be equal, and thus will be guaranteed to generate the same B value, if they have the same hashCode.

A version of function that generates functions that accept two parameters.

A version of function that generates functions that accept three parameters.

A version of function that generates functions that accept four parameters.

Constructs a generator of functions from A to B given a generator of B values and a hashing function for A values. Two A values will be considered to be equal, and thus will be guaranteed to generate the same B value, if they have have the same hash. This is useful when A does not implement hashCode in a way that is consistent with equality.

A version of functionWith that generates functions that accept two parameters.

A version of functionWith that generates functions that accept three parameters.

A version of functionWith that generates functions that accept four parameters.

A generator of java.time.Instant values inside the specified range: [min, max]. Shrinks toward min.

A generator of java.time.LocalDateTime values inside the specified range: [min, max]. Shrinks toward min.

A generator of java.time.OffsetDateTime values inside the specified range: [min, max]. Shrinks toward min.

A generator of effects that are the result of applying parallelism combinators to the specified effect that are guaranteed not to change its value.

A generator of successful effects.

A generator of alpha characters.

A generator of alphanumeric characters. Shrinks toward '0'.

A generator of alphanumeric strings. Shrinks towards the empty string.

A generator of bytes. Shrinks toward '0'.

A generator of characters. Shrinks toward '0'.

A generator of doubles. Shrinks toward '0'.

A generator of floats. Shrinks toward '0'.

A generator of hex chars(0-9,a-f,A-F).

A generator of integers. Shrinks toward '0'.

A generator of longs. Shrinks toward '0'.

A generator of lower hex chars(0-9, a-f).

A generator of shorts. Shrinks toward '0'.

A generator of universally unique identifiers. The returned generator will not have any shrinking.

A generator of Unicode characters. Shrinks toward '0'.

A generator of upper hex chars(0-9, A-F).

A generator of booleans. Shrinks toward 'false'.

A generator of exponentially distributed doubles with mean 1. The shrinker will shrink toward 0.

A generator of strings that can be encoded in the ISO-8859-1 character set.

A constant generator of the empty value.

A generator of numeric characters. Shrinks toward '0'.

A generator of printable characters. Shrinks toward '!'.

A generator of throwables.

A constant generator of the unit value.

A generator of whitespace characters.