Problem with play 2.2.1 and play-slick 0.5.0.8 when using the cake pattern as seen in the computer-database sample.

Database.scala

package lib.data

import play.api.db.slick.Config.driver.simple._

// Inspired by: http://bit.ly/HL0y7u
private[data] trait DAO extends ReviewersComponent with ProposalsComponent with ValuationsComponent {
  val Reviewers = new Reviewers
  val Proposals = new Proposals
  val Valuations = new Valuations
}

trait ReviewersComponent { self: ValuationsComponent =>
  val Reviewers: Reviewers
  
  class Reviewers extends Table[(Int, String, String)]("Reviewers") {
    def id = column[Int]("id", O.PrimaryKey)
    def firstname = column[String]("firstname")
    def lastname = column[String]("lastname")
    
    def * = id ~ firstname ~ lastname
    
    def valuations = Valuations.filter(_.reviewerId === id)
    
    val byId = createFinderBy(_.id)
  }
}

trait ProposalsComponent { self: ValuationsComponent =>
  val Proposals: Proposals
 
  class Proposals extends Table[(Int, String)]("Proposal") {
    def id = column[Int]("id", O.PrimaryKey)
    def title = column[String]("title")
    
    def * = id ~ title
    
    def valuations = Valuations.filter(_.proposalId === id)
    
    val byId = createFinderBy(_.id)
  }
}

trait ValuationsComponent { self: ReviewersComponent with ProposalsComponent =>
  val Valuations: Valuations
  
  class Valuations extends Table[(Int, Int, Int, Boolean)]("Valuations") {
    def reviewerId = column[Int]("reviewer_id")
    def proposalId = column[Int]("proposal_id")
    def value = column[Int]("value")
    def assigned = column[Boolean]("assigned")
    
    def pk = primaryKey("reviewer_id_and_proposal_id", (reviewerId, proposalId))
    def reviewer = foreignKey("reviewer_fk", reviewerId, Reviewers)(_.id)
    def proposal = foreignKey("proposal_fk", proposalId, Proposals)(_.id)
    
    def * = reviewerId ~ proposalId ~ value ~ assigned
  }
}

object Reviewers extends DAO {
  def findById(id: Int)(implicit s: Session) {
    Reviewers.byId(id).firstOption
  }
  
  def insert(r: (Int, String, String))(implicit s: Session) {
    Reviewers.insert(r)
  }
}

object Proposals extends DAO {}

object Valuations extends DAO {}

DatabaseSpec.scala

package lib.data

import org.scalatest._
import play.api.test._
import play.api.test.Helpers._
import play.api.db.slick.DB
import slick.session.Session
import play.api.Play.current

class DatabaseSpec extends FlatSpec with Matchers {
  
  "Reviewers model" should "be retrieved by id" in {
    
    running(FakeApplication(additionalConfiguration = inMemoryDatabase(options=Map("MODE" -> "MySQL")))) {
      DB.withSession { implicit s: Session =>
        val reviewer = (23, "John", "Wayne")
        Reviewers.insert(reviewer)
        
        assert(Some(reviewer) === Reviewers.findById(23))
      }
      
    }
    
  }
  
}

gistfile1.txt

$ play test
[warn] application - Found a Slick table: lib.data.ReviewersComponent$Reviewers, but it does not have a constructor without arguments. Cannot create DDL for this class
[warn] application - Found a Slick table: lib.data.ValuationsComponent$Valuations, but it does not have a constructor without arguments. Cannot create DDL for this class
[warn] application - Found a Slick table: lib.data.ProposalsComponent$Proposals, but it does not have a constructor without arguments. Cannot create DDL for this class
- should be retrieved by id *** FAILED ***
  org.h2.jdbc.JdbcSQLException: Table "Reviewers" not found; SQL statement:
INSERT INTO "Reviewers" ("id","firstname","lastname") VALUES (?,?,?) [42102-172]
  at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
  at org.h2.message.DbException.get(DbException.java:169)
  at org.h2.message.DbException.get(DbException.java:146)
  at org.h2.command.Parser.readTableOrView(Parser.java:4824)
  at org.h2.command.Parser.readTableOrView(Parser.java:4802)
  at org.h2.command.Parser.parseInsert(Parser.java:966)
  at org.h2.command.Parser.parsePrepared(Parser.java:375)
  at org.h2.command.Parser.parse(Parser.java:279)
  at org.h2.command.Parser.parse(Parser.java:251)
  at org.h2.command.Parser.prepareCommand(Parser.java:218)
  ...
Run completed in 8 seconds, 476 milliseconds.
Total number of tests run: 1
Suites: completed 1, aborted 0
Tests: succeeded 0, failed 1, canceled 0, ignored 0, pending 0
*** 1 TEST FAILED ***