A generator of alpha characters.
A generator of alphanumeric characters.
A generator of alphanumeric characters. Shrinks toward '0'.
A generator of alphanumeric strings.
A generator of alphanumeric strings. Shrinks towards the empty string.
A generator of alphanumeric strings whose size falls within the specified bounds.
A generator of US-ASCII characters.
A generator of US-ASCII characters. Shrinks toward '0'.
A generator US-ASCII strings.
A generator US-ASCII strings. Shrinks towards the empty string.
A generator of big decimals inside the specified range: [start, end].
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].
A generator of java.math.BigDecimal 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
.
See bigDecimal for implementation.
A generator of big integers inside the specified range: [start, end].
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].
A generator of java.math.BigInteger inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
See bigInt for implementation.
A generator of booleans.
A generator of booleans. Shrinks toward 'false'.
A generator whose size falls within the specified bounds.
A generator of byte values inside the specified range: [start, end].
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 bytes.
A generator of bytes. Shrinks toward '0'.
A generator of Cause
values
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 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 chaining the specified effect with itself a given number of times.
A generator of character values inside the specified range: [start, end].
A generator of character values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
A generator of characters.
A generator of characters. Shrinks toward '0'.
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.
Composes the specified generators to create a cartesian product of elements with the specified function.
Combines the specified deterministic generators to return a new deterministic generator that generates all of the values generated by the specified generators.
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 are the result of applying concurrency combinators to the specified effect that are guaranteed not to change its value.
A constant generator of the specified value.
A constant generator of the specified sample.
A generator of java.time.DayOfWeek
values.
A generator of java.time.DayOfWeek
values. Shrinks toward
DayOfWeek.MONDAY
.
A generator of effects that have died with a Throwable
.
A generator of effects that have died with a Throwable
.
A generator of double values inside the specified range: [start, end].
A generator of double values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
A generator of doubles.
A generator of doubles. Shrinks toward '0'.
A generator of exponentially distributed doubles with mean 1
.
A generator of exponentially distributed doubles with mean 1
. The
shrinker will shrink toward 0
.
A generator of effects that have failed with an error.
A generator of effects that have failed with an error.
A generator of finite zio.duration.Duration
values inside the specified
range: [min, max].
A generator of finite zio.duration.Duration
values inside the specified
range: [min, max]. Shrinks toward min.
A generator of finite zio.duration.Duration
values.
A generator of finite zio.duration.Duration
values. Shrinks toward
Duration.Zero
.
A generator of floats.
A generator of floats. Shrinks toward '0'.
Constructs a deterministic generator that only generates the specified fixed values.
Constructs a generator from a function that uses randomness.
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.
Constructs a generator from an effect that constructs a value.
Constructs a generator from an effect that constructs a sample.
Constructs a generator of functions from A
to B
given a generator of
B
values.
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 two
parameters.
A version of function
that generates functions that accept three
parameters.
A version of function
that generates functions that accept three
parameters.
A version of function
that generates functions that accept four
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.
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 two
parameters.
A version of functionWith
that generates functions that accept three
parameters.
A version of functionWith
that generates functions that accept three
parameters.
A version of functionWith
that generates functions that accept four
parameters.
A version of functionWith
that generates functions that accept four
parameters.
A generator of hex chars(0-9,a-f,A-F).
A generator of lower hex chars(0-9, a-f).
A generator of upper hex chars(0-9, A-F).
A generator of java.time.Instant
values inside the specified range: [min,
max].
A generator of java.time.Instant
values inside the specified range: [min,
max]. Shrinks toward min.
A generator of java.time.Instant
values.
A generator of java.time.Instant
values. Shrinks toward Instant.MIN
.
A generator of integers inside the specified range: [start, end].
A generator of integers inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
A generator of integers.
A generator of integers. Shrinks toward '0'.
A generator of strings that can be encoded in the ISO-8859-1 character set.
A sized generator that uses a uniform distribution of size values.
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 java.time.LocalDate
values.
A generator of java.time.LocalDate
values. Shrinks toward
LocalDate.MIN
.
A generator of java.time.LocalDateTime
values inside the specified range:
[min, max].
A generator of java.time.LocalDateTime
values inside the specified range:
[min, max]. Shrinks toward min.
A generator of java.time.LocalDateTime
values.
A generator of java.time.LocalDateTime
values. Shrinks toward
LocalDateTime.MIN
.
A generator of java.time.LocalTime
values.
A generator of java.time.LocalTime
values. Shrinks toward
LocalTime.MIN
.
A generator of long values in the specified range: [start, end].
A generator of long values in the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
A generator of longs.
A generator of longs. Shrinks toward '0'.
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.
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 java.time.Month
values.
A generator of java.time.Month
values. Shrinks toward Month.JANUARY
.
A generator of java.time.MonthDay
values.
A generator of java.time.MonthDay
values. Shrinks toward
MonthDay.of(Month.JANUARY, 1)
.
A constant generator of the empty value.
A generator of numeric characters.
A generator of numeric characters. Shrinks toward '0'.
A generator of java.time.OffsetDateTime
values inside the specified
range: [min, max].
A generator of java.time.OffsetDateTime
values inside the specified
range: [min, max]. Shrinks toward min.
A generator of java.time.OffsetDateTime
values.
A generator of java.time.OffsetDateTime
values. Shrinks toward
OffsetDateTime.MIN
.
A generator of java.time.OffsetTime
values.
A generator of java.time.OffsetTime
values. Shrinks torward
OffsetTime.MIN
.
A generator of optional values.
A generator of optional values. Shrinks toward None
.
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 effects that are the result of applying parallelism combinators to the specified effect that are guaranteed not to change its value.
Constructs a generator of partial functions from A
to B
given a
generator of B
values.
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.
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 generator of java.time.Period
values.
A generator of java.time.Period
values. Shrinks toward Period.ZERO
.
A generator of printable characters.
A generator of printable characters. Shrinks toward '!'.
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].
A generator of short values inside the specified range: [start, end]. The shrinker will shrink toward the lower end of the range ("smallest").
A generator of shorts.
A generator of shorts. Shrinks toward '0'.
A sized generator, whose size falls within the specified bounds.
A sized generator that uses an exponential distribution of size values.
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.
A generator of strings. Shrinks towards the empty string.
A generator of strings whose size falls within the specified bounds.
A generator of successful effects.
A generator of successful effects.
Lazily constructs a generator.
Lazily constructs a generator. This is useful to avoid infinite recursion when creating generators that refer to themselves.
A generator of throwables.
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 Unicode characters.
A generator of Unicode characters. Shrinks toward '0'.
A generator of uniformly distributed doubles between [0, 1].
A generator of uniformly distributed doubles between [0, 1]. The shrinker
will shrink toward 0
.
A constant generator of the unit value.
A generator of universally unique identifiers.
A generator of universally unique identifiers. The returned generator will not have any shrinking.
A generator of vectors whose size falls within the specified bounds.
A generator which chooses one of the given generators according to their weights.
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))
A generator of whitespace characters.
A generator of java.time.Year
values.
A generator of java.time.Year
values. Shrinks toward
Year.of(Year.MIN_VALUE)
.
A generator of java.time.YearMonth
values.
A generator of java.time.YearMonth
values. Shrinks toward
YearMonth.of(Year.MIN_VALUE, Month.JANUARY)
.
A generator of java.time.ZoneId
values.
A generator of java.time.ZoneId
values. Doesn't have any shrinking.
A generator of java.time.ZoneOffset
values.
A generator of java.time.ZoneOffset
values. Shrinks toward
ZoneOffset.MIN
.
A generator of java.time.ZonedDateTime
values.
A generator of java.time.ZonedDateTime
values. Shrinks toward
ZoneDateTime.of(LocalDateTime.MIN, zoneId)
.