Matching an AnyVal with private constructor

I’m not sure if it’s limited to AnyVals or applies to any class with a private constructor, but it seems to be impossible to match arguments of such type.

Pseudo-example:

final case class CountryCode private (value: String) extends AnyVal
object CountryCode extends LazyLogging {
  def apply(code: String): Either[String, CountryCode] = { ... }
  }
}

foo.bar(any[CountryCode]).returns(baz)

fails compilations with

constructor CountryCode in class CountryCode cannot be accessed in <$anon: org.mockito.matchers.DefaultValueProvider[CountryCode]> from <$anon: org.mockito.matchers.DefaultValueProvider[CountryCode]>
        .bar(any[CountryCode])

I haven’t found a workaround for now

[bbonanno]

Scala version? (iirc on each version I use a different ~hack~ impl 😂 )

[Krever]

Right! I haven’t thought of that 😃 Thanks.

You can keep this issue open if you’d like to improve the error message, otherwise, feel free to close.