dist-javascript-algorithms-and-data-structures/dist/algorithms/sets/knapsack-problem/__test__/KnapsackItem.test.js

Algorithms and data-structures implemented on JavaScript

"use strict";

var _KnapsackItem = _interopRequireDefault(require("../KnapsackItem"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

describe('KnapsackItem', () => {
  it('should create knapsack item and count its total weight and value', () => {
    const knapsackItem = new _KnapsackItem.default({
      value: 3,
      weight: 2
    });
    expect(knapsackItem.value).toBe(3);
    expect(knapsackItem.weight).toBe(2);
    expect(knapsackItem.quantity).toBe(1);
    expect(knapsackItem.valuePerWeightRatio).toBe(1.5);
    expect(knapsackItem.toString()).toBe('v3 w2 x 1');
    expect(knapsackItem.totalValue).toBe(3);
    expect(knapsackItem.totalWeight).toBe(2);
    knapsackItem.quantity = 0;
    expect(knapsackItem.value).toBe(3);
    expect(knapsackItem.weight).toBe(2);
    expect(knapsackItem.quantity).toBe(0);
    expect(knapsackItem.valuePerWeightRatio).toBe(1.5);
    expect(knapsackItem.toString()).toBe('v3 w2 x 0');
    expect(knapsackItem.totalValue).toBe(0);
    expect(knapsackItem.totalWeight).toBe(0);
    knapsackItem.quantity = 2;
    expect(knapsackItem.value).toBe(3);
    expect(knapsackItem.weight).toBe(2);
    expect(knapsackItem.quantity).toBe(2);
    expect(knapsackItem.valuePerWeightRatio).toBe(1.5);
    expect(knapsackItem.toString()).toBe('v3 w2 x 2');
    expect(knapsackItem.totalValue).toBe(6);
    expect(knapsackItem.totalWeight).toBe(4);
  });
});