go.rb

require "go/gtp/board"
require "cutest"

setup do
  string = <<-EOS.gsub(/^ {2}/, "")
    A B C D E F G H J
  9 . . . . . . . . . 9
  8 . . . . . . . . . 8
  7 . . X . . . + . . 7
  6 . . . . . . . . . 6
  5 . . . . + . . . . 5
  4 . . . . . . . . . 4
  3 . . + . . O + . . 3
  2 . . . . . . . . . 2 WHITE (O) has captured 10 stones
  1 . . . . . . . . . 1 BLACK (X) has captured 11 stones
    A B C D E F G H J
  EOS

  [Go::GTP::Board.new(string), string]
end

test "should stringify to what it was created from" do |board, string|
  assert board.to_s == string
end

test "should support indexing by coordinates" do |board|
  assert board[0, 0].nil?
  assert board[2, 6] == "black"
  assert board[5, 2] == "white"
end

test "should support indexing by vertices" do |board|
  assert board["A1"].nil?
  assert board["C7"] == "black"
  assert board["F3"] == "white"
end

test "should fail to index for any other combination" do |board|
  assert_raise(ArgumentError) do
    board["A", "1"]
  end
end

test "should be able to count captures by color name" do |board|
  assert board.captures("white") == 10
  assert board.captures("WHITE") == 10
  assert board.captures("black") == 11
  assert board.captures("BLACK") == 11
end

test "should be able to count captures by stone type" do |board|
  assert board.captures("o") == 10
  assert board.captures("O") == 10
  assert board.captures("x") == 11
  assert board.captures("X") == 11
end