zio-test/zio.test.laws/ZLawsF/Contravariant

Contravariant

abstract class Contravariant[-CapsF[_[_]], -Caps[_], -R]

ZLawsF for contravariant type constructors.

Companion:
object
class Object
trait Matchable
class Any
class ComposeLaw[CapsF, Caps]
class Law1[CapsF, Caps]
class Law1M[CapsF, Caps, R]
class Law2[CapsF, Caps]
class Law2M[CapsF, Caps, R]
class Law3[CapsF, Caps]
class Law3M[CapsF, Caps, R]
Contravariant[CapsF, Caps, R]

Value members

Abstract methods

def run[R1 <: R & TestConfig, F[_] : CapsF, A : Caps](genF: GenF[R1, F], gen: Gen[R1, A]): ZIO[R1, Nothing, TestResult]

Test that values of type F[+_] satisfy the laws using the specified function to construct a generator of F[A] values given a generator of A values.

Test that values of type F[+_] satisfy the laws using the specified function to construct a generator of F[A] values given a generator of A values.

Concrete methods

def +[CapsF1 <: ([x[_]] =>> CapsF[x]), Caps1 <: (Caps), R1 <: R](that: Contravariant[CapsF1, Caps1, R1]): Contravariant[CapsF1, Caps1, R1]

Combine these laws with the specified laws to produce a set of laws that require both sets of laws to be satisfied.

Combine these laws with the specified laws to produce a set of laws that require both sets of laws to be satisfied.