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path: root/src/Board/Board.test.ts
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import assert from 'assert';
import Tile, { Feature, Direction } from '../Tile/Tile';
import TileOnBoard from '../Tile/TileOnBoard';
import Board from './Board';

const { Road, Town, Grass } = Feature;
const { North } = Direction;

describe('Board', () => {
  describe('constructor', () => {
    it('Should initialize empty board with a starting tile', () => {
      const board = new Board();
      assert.strictEqual(board.tiles.length, 1);
      assert.deepStrictEqual(board.tiles[0], new TileOnBoard(Road, [Town, Road, Grass, Road]));
    });
  });

  describe('getAttachments', () => {
    it('Should correctly determine legal moves for 1-tile board', () => {
      const board = new Board();
      const attachTo = board.tiles[0];
      const tile = new Tile(Town, [Grass, Town, Grass, Town]);
      const legalMoves = board.getAttachments(tile);

      assert.strictEqual(legalMoves.length, 4);
      assert.deepStrictEqual(legalMoves[0], { side: 0, rotation: 1, attachTo, tile });
      assert.deepStrictEqual(legalMoves[1], { side: 0, rotation: 3, attachTo, tile });
      assert.deepStrictEqual(legalMoves[2], { side: 2, rotation: 0, attachTo, tile });
      assert.deepStrictEqual(legalMoves[3], { side: 2, rotation: 2, attachTo, tile });
    });
  });

  describe('attach', () => {
    it('Should push new tile to the list and assign correct coordinates', () => {
      const board = new Board();

      const attachment = {
        tile: new Tile(Town, [Grass, Town, Grass, Town]),
        attachTo: board.tiles[0],
        orientation: 0,
        side: North,
      };

      const expectedTileOnBoard = new TileOnBoard(
        Town,
        [Grass, Town, Grass, Town],
        false,
        { x: 0, y: 1 },
        0
      );

      board.attach(attachment);
      assert.strictEqual(board.tiles.length, 2);
      assert.deepStrictEqual(board.tiles[1], expectedTileOnBoard);
    });
  });
});