if !System.get_env("EXERCISM_TEST_EXAMPLES") do
  Code.load_file("connect.exs", __DIR__)
end

ExUnit.start()
ExUnit.configure(exclude: :pending, trace: true)

defmodule ConnectTest do
  use ExUnit.Case

  def remove_spaces(rows) do
    Enum.map(rows, &String.replace(&1, " ", ""))
  end

  # @tag :pending
  test "empty board has no winner" do
    board =
      remove_spaces([
        ". . . . .",
        " . . . . .",
        "  . . . . .",
        "   . . . . .",
        "    . . . . ."
      ])

    assert Connect.result_for(board) == :none
  end

  @tag :pending
  test "1x1 board with black stone" do
    board = ["X"]
    assert Connect.result_for(board) == :black
  end

  @tag :pending
  test "1x1 board with white stone" do
    board = ["O"]
    assert Connect.result_for(board) == :white
  end

  @tag :pending
  test "convulted path" do
    board =
      remove_spaces([
        ". X X . .",
        " X . X . X",
        "  . X . X .",
        "   . X X . .",
        "    O O O O O"
      ])

    assert Connect.result_for(board) == :black
  end

  @tag :pending
  test "rectangle, black wins" do
    board =
      remove_spaces([
        ". O . .",
        " O X X X",
        "  O X O .",
        "   X X O X",
        "    . O X ."
      ])

    assert Connect.result_for(board) == :black
  end

  @tag :pending
  test "rectangle, white wins" do
    board =
      remove_spaces([
        ". O . .",
        " O X X X",
        "  O O O .",
        "   X X O X",
        "    . O X ."
      ])

    assert Connect.result_for(board) == :white
  end

  @tag :pending
  test "spiral, black wins" do
    board = [
      "OXXXXXXXX",
      "OXOOOOOOO",
      "OXOXXXXXO",
      "OXOXOOOXO",
      "OXOXXXOXO",
      "OXOOOXOXO",
      "OXXXXXOXO",
      "OOOOOOOXO",
      "XXXXXXXXO"
    ]

    assert Connect.result_for(board) == :black
  end

  @tag :pending
  test "spiral, nobody wins" do
    board = [
      "OXXXXXXXX",
      "OXOOOOOOO",
      "OXOXXXXXO",
      "OXOXOOOXO",
      "OXOX.XOXO",
      "OXOOOXOXO",
      "OXXXXXOXO",
      "OOOOOOOXO",
      "XXXXXXXXO"
    ]

    assert Connect.result_for(board) == :none
  end
end