Mocking a vararg tuple using mockito - scala

Question

I want to mock this method
def zadd[V: ByteStringSerializer](key: String, scoreMembers: (Double, V)*): Future[Long]
Tried this
mock.zadd(anyString(), Seq((anyDouble(), any String()), (anyDouble(), anyString())): _*)
doesnt work because mockito says 3 matchers expected, but got 5 instead.
so I try using How to properly match varargs in Mockito
but, I cant even use the code listed in that example
ArgumentMatchers.<String>any() gets flagged as error in my IDE saying not recognized type String

Answer 1

mockito-scala supports varargs out-of-the-box, for example
import cats.implicits._
import org.mockito.ArgumentMatchersSugar
import org.mockito.cats.IdiomaticMockitoCats
import org.mockito.scalatest.IdiomaticMockito
import org.scalatest._
import org.scalatest.concurrent.ScalaFutures
import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.Future
trait Foo {
def zadd(key: String, scoreMembers: (Double, String)*): Future[Long]
}
class HelloSpec extends FlatSpec
with Matchers
with IdiomaticMockito
with IdiomaticMockitoCats
with ScalaFutures
with ArgumentMatchersSugar {
"Foo" should "mock varargs" in {
val foo = mock[Foo]
foo.zadd("", *) returnsF 42L
foo.zadd("bar", (7.7, "qux")) returnsF 89L
foo.zadd("", (1.1, "")).futureValue should be (42L)
foo.zadd("bar", (7.7d, "qux")).futureValue should be (89L)
}
}
where
libraryDependencies ++= Seq(
"org.scalatest" %% "scalatest" % "3.0.8",
"org.mockito" %% "mockito-scala" % "1.5.13",
"org.mockito" %% "mockito-scala-scalatest" % "1.5.13",
"org.mockito" %% "mockito-scala-cats" % "1.5.13",
"org.typelevel" %% "cats-core" % "2.0.0-M4"
)