I was trying to use a method called random with the following signature:
def random[T: WeakTypeTag: Arbitrary]: T
On a case class named Checking but I get this :
could not find implicit value for evidence parameter of type org.scalacheck.Arbitrary[com.organization.lambda.Checking]
I know this is due to some issues with context bounds, but I can't get my head around that and understand what has to be done.
Do you use random-data-generator-magnolia?
If so, you should specify implicit value for Arbitrary[Checking] case class.
Example from test source:
implicit val arbitraryPerson: Arbitrary[Person] = Arbitrary {
for {
name <- Gen.oneOf("Daniela", "John", "Martin", "Marco")
age <- Gen.choose(0, 100)
} yield Person(name, age)
}
val instance = random[Person]
Person is:
case class Person(name: String, age: Int)