问在ScalikeJDBC测试用例中，NamedDB不会连接到DSL查询

EN

class JobSpec extends FlatSpec with AutoRollback {
  DBsWithEnv("test").setup('testdb)
  override def db = NamedDB('testdb).toDB

  override def fixture(implicit session:DBSession) = {
    User.insert("test_user")
  }

  it should "create a new user" in { implicit session: DBSession =>
    User.sqlFind("test_user") //succeeds
    User.dslFind("test_user") //fails
  }
}

Connection pool is not yet initialized.(name:'default)
java.lang.IllegalStateException: Connection pool is not yet initialized.(name:'default)

case class User(name: String)
object User extends SQLSyntaxSupport[User] {
  def apply(u: SyntaxProvider[User])(rs: WrappedResultSet) = apply(u.resultName)(rs)
  def apply(j: ResultName[User])(rs: WrappedResultSet) = new User(rs.get(u.name))

  override val tableName = "users"
  val u = User.syntax("u")

  def dslFind(name: String)(implicit session: DBSession) = 
    withSQL {
      select.from(User as u).where.eq(u.name, name)
    }.map(User(u)).single().apply()
  def sqlFind(name: String)(implicit session: DBSession) = 
    sql""" select (name) from users where name = $name;"""
      .map(rs => new User(rs.string(1)).single().apply()
}