zio.test.refined.GenericInstances.scala Maven / Gradle / Ivy
/*
* Copyright 2021-2024 John A. De Goes and the ZIO Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.test.refined
import eu.timepit.refined.api.Refined
import eu.timepit.refined.generic.Equal
import shapeless.Witness
import zio.test.magnolia.DeriveGen
import zio.test.Gen
object generic extends GenericInstances
trait GenericInstances {
def equalArbitraryGen[T, U <: T](implicit
wu: Witness.Aux[U]
): Gen[Any, Refined[T, Equal[U]]] =
Gen.const(wu.value).map(Refined.unsafeApply)
implicit def equalArbitrary[T, U <: T](implicit
wu: Witness.Aux[U]
): DeriveGen[Refined[T, Equal[U]]] =
DeriveGen.instance(equalArbitraryGen(wu))
}