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"use strict"; |
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/* global describe it expect */ |
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const { bestMove, randomMove } = require("../src/ai.js"); |
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const empty10x10 = Array.from({ length: 10 * 10 }, () => 0); |
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const full10x10 = Array.from({ length: 10 * 10 }, (_, i) => i % 2 + 1); |
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const allButFirstFull10x10 = (() => { |
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let t = [...full10x10]; |
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t[0] = 0; |
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return t; |
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})(); |
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const allButLastFull10x10 = (() => { |
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let t = [...full10x10]; |
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t[99] = 0; |
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return t; |
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})(); |
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describe("randomMove", () => { |
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it("should generate position", () => { |
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const pos = randomMove(empty10x10, 10); |
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expect(pos).toHaveProperty("x"); |
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expect(pos).toHaveProperty("y"); |
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}); |
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it("should return null if board is full", () => { |
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const pos = randomMove(full10x10, 10); |
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expect(pos).toBe(null); |
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}); |
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it("should return first pos on all but first", () => { |
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const pos = bestMove(allButFirstFull10x10, 10); |
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expect(pos).toEqual({ x: 0, y: 0 }); |
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}); |
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it("should return last pos on all but last", () => { |
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const pos = bestMove(allButLastFull10x10, 10); |
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expect(pos).toEqual({ x: 9, y: 9 }); |
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}); |
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}); |
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describe("bestMove", () => { |
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it("should generate position", () => { |
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const pos = bestMove(empty10x10, 10); |
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expect(pos).toHaveProperty("x"); |
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expect(pos).toHaveProperty("y"); |
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}); |
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it("should return null if board is full", () => { |
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const pos = bestMove(full10x10, 10); |
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expect(pos).toBe(null); |
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}); |
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it("should place winning move", () => { |
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const size = 10; |
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// prettier-ignore |
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const board = [ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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]; |
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// prettier-ignore |
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const winningBoard = [ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, //<-- First winning pos |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 2, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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]; |
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const pos = bestMove(board, size); |
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board[pos.x + pos.y * size] = 1; |
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expect(board).toEqual(winningBoard); |
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}); |
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it("should place blocking move", () => { |
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const size = 10; |
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// prettier-ignore |
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const board = [ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 2, 2, 2, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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]; |
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// prettier-ignore |
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const blockingBoard = [ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 1, 2, 2, 2, 0, 0, 0, //<-- First blocking pos |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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]; |
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const pos = bestMove(board, size); |
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board[pos.x + pos.y * size] = 1; |
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expect(board).toEqual(blockingBoard); |
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}); |
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it("should return first pos on all but first", () => { |
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const pos = bestMove(allButFirstFull10x10, 10); |
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expect(pos).toEqual({ x: 0, y: 0 }); |
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}); |
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it("should return last pos on all but last", () => { |
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const pos = bestMove(allButLastFull10x10, 10); |
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expect(pos).toEqual({ x: 9, y: 9 }); |
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}); |
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}); |
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