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• 0.3.0
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• CoflatMapTests.scala

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cats.laws.discipline.CoflatMapTests.scala Maven / Gradle / Ivy

package cats
package laws
package discipline

import org.scalacheck.Arbitrary
import org.scalacheck.Prop
import Prop._
import org.typelevel.discipline.Laws

trait CoflatMapTests[F[_]] extends Laws {
  def laws: CoflatMapLaws[F]

  def coflatMap[A: Arbitrary, B: Arbitrary, C: Arbitrary](implicit
    ArbFA: Arbitrary[F[A]],
    EqFA: Eq[F[A]],
    EqFC: Eq[F[C]]
  ): RuleSet = {
    new DefaultRuleSet(
      name = "coflatMap",
      parent = None,
      "coflatMap associativity" -> forAll(laws.coflatMapAssociativity[A, B, C] _))
  }
}

object CoflatMapTests {
  def apply[F[_]: CoflatMap]: CoflatMapTests[F] =
    new CoflatMapTests[F] { def laws: CoflatMapLaws[F] = CoflatMapLaws[F] }
}