Getting try/catch to work in Scala

try.scala

import java.time.LocalDate
import java.time.TemporalAdjusters

import scala.util.{Success, Failure, Try}

import org.scalatest.FunSpec

/**
  * Check if date passed is the last day of the month.
  */
object Check {
  def endDateCheck(d: LocalDate): Try[String] = {
    val lastDay = d.`with`(d.getMonth).`with`(TemporalAdjusters.lastDayOfMonth)
    val error: String = "Warning! Date passed is not last day of month."
    if (d == lastDay) Success("")
    else Failure(new Exception(error))
  }
}

object Main {
  def evaluate(d: LocalDate): Try[String] = {
    Try(Check.endDateCheck(d)) match {
      case Failure(fail) => Failure(fail)
      case Success(_) => Success("")
    }
  }
}

class CheckSpec exends FunSpec {
  describe("Try/Catch example") {
    it("should return a value") {
      Main.evaluate(LocalDate.of(2017, 10, 31)) match {
        case Failure(error) => println(error)
        case Success(result) => assert(result.isEmpty)
      }
    }
    it ("should return an error") {
      Main.evaluate(LocalDate.of(2017, 10, 1)) match {
        case Failure(error) => assert(error.getMessage == "Warning! Date passed is not last day of month.")
        case Success(result) => println(result)
      }
    }
  }
}