cats-laws-2-13

library2.13.0javamavenunverified

Cats laws provides law-checking utilities for functional programming abstractions in Scala.

<dependency>
  <groupId>org.typelevel</groupId>
  <artifactId>cats-laws_2.13</artifactId>
  <version>2.13.0</version>
</dependency>

github ↗homepage ↗docs ↗

INSTALL

IMPORT

SIG · CATS-LAWS-2-13

cats-laws-2-13

testingjavav2.13.0

harness data pending

Install & Compatibility

Where this runs

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Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

FunctorLaws

✓ cats.laws.FunctorLaws

Checks the identity law for the Option functor using Cats laws.

import cats.laws.FunctorLaws import cats.instances.option._ object Quickstart extends App { val laws = FunctorLaws[Option] println(laws.identityLaw(Some(42))) }

Debug

Known issues

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Upgrade

Version history

2.13.0latest on Maven

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Dependencies

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Agent activity

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OpenAI (training)

Resources

githubhttps://github.com/typelevel/cats ↗

homepagehttps://typelevel.org/cats ↗

docshttps://appdoc.app/artifact/org.typelevel/cats-laws_2.13/ ↗