December 2016
Intermediate to advanced
841 pages
17h
English
Content preview from TypeScript: Modern JavaScript DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Testing the AI
We will add some tests to check that the AI works properly. For a standard three by three game, the AI should never lose. That means when an AI plays against an AI, it should result in a draw. We can add a test for this. In lib/test/ai.ts, we import AVA and our own definitions.
import test from "ava";
import { createGrid, Grid, findWinner, isFull, getOptions, Player } from "../model";
import { minimax } from "../ai";
import { randomInt } from "../utils";
We create a function that simulates the whole gameplay.
type PlayerController = (grid: Grid) => Grid; function run(grid: Grid, a: PlayerController, b: PlayerController): Player { const winner = findWinner(grid, 3); if (winner !== Player.None) return winner; if (isFull(grid)) return ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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