A concise way to test different inputs for a function that determines whether a cell in Conway's Game of Life should become alive or stay dead given the number of live neighbours.

conway_liveneighbour_test.scala

describe ("alive cells") {
  val cell = Cell(Alive)
  
  Seq(
    (0, Dead),
    (1, Dead),
    (2, Alive),
    (3, Alive)
    // ...
  ) foreach { case (count, state) =>
    it (s"should become $state when there are $count live neighbours") {
      cell.next(count) should be (Cell(state))
    }
  }
}