planck-js/src/__test__/Pool.test.ts

2D JavaScript/TypeScript physics engine for cross-platform HTML5 game development

/* eslint-disable @typescript-eslint/no-unused-expressions */
import { describe, it, expect } from "vitest";

import { Pool } from "../util/Pool";

describe("Pool", function(): void {
  it("Pool", function(): void {

    interface Type {
      busy: boolean;
      disposed: boolean;
      created: boolean;
    }
    const pool = new Pool<Type>({
      create : function(): Type {
        return {
          created : true,
          busy : false,
          disposed : false,
        };
      },
      allocate : function(obj: Type): void {
        obj.busy = true;
      },
      release : function(obj: Type): void {
        obj.busy = false;
      },
      dispose : function(obj: Type): Type {
        obj.disposed = true;
        return;
      },
      max : 1
    });

    const a = pool.allocate();
    const b = pool.allocate();

    expect(a.created).be.true;
    expect(a.busy).be.true;
    expect(a.disposed).be.false;

    pool.release(a);
    expect(a.busy).be.false;
    expect(a.disposed).be.false;

    pool.release(b);
    expect(b.disposed).be.true;

  });
});