diff-obj/test/diff.test.js

const diff = require('../lib/diff');

const assert = require('assert');

describe('比较对象 #diff', function() {
  describe('比较正常对象', function() {
    it('比较单层对象', function() {
      const from = {
        productId: 10043,
        name: '大大泡泡糖',
        price: '11.10',
        recommends: [11, 22, 33],
      };
      const to = {
        productId: 10043,
        name: '大大泡泡糖（香草拿铁）',
        count: 20,
        recommends: [11, 22, 33],
      };

      const result = diff(from, to);

      const {added, removed, changed, unchanged} = result;

      assert.equal(added.count.from, undefined);
      assert.equal(added.count.to, to.count);

      assert.equal(removed.price.from, from.price);
      assert.equal(removed.price.to, undefined);

      assert.equal(changed.name.from, from.name);
      assert.equal(changed.name.to, to.name);

      assert.equal(unchanged.productId.from, from.productId);
      assert.equal(unchanged.productId.to, to.productId);
      assert.equal(unchanged.recommends.from, from.recommends);
      assert.equal(unchanged.recommends.to, to.recommends);
    });

    it('比较多层对象', function() {
      const from = {
        productId: 10043,
        name: '大大泡泡糖',
        photo: {
          url: 'http://apple/a.png',
          title: 'apple',
          size: {
            width: 120,
            height: 60,
          },
        },
        comment: {
          content: '啦啦啦',
        },
        price: {
          amount: '120.00',
        },
        recommends: [11, 22, 33],
      };
      const to = {
        productId: 10043,
        name: '大大泡泡糖（香草拿铁）',
        photo: {
          url: 'http://apple/b.png',
          title: 'apple',
          size: {
            width: 120,
            height: 120,
          },
        },
        price: '120.00',
        stock: {
          sellable: 99,
          locked: 1,
        },
        recommends: ['11', 22, 33],
      };

      const result = diff(from, to);

      const {added, removed, changed, unchanged} = result;

      console.log(result);
      assert.equal(added.stock.from, undefined);
      assert.equal(added.stock.to, to.stock);

      assert.equal(removed.comment.from, from.comment);
      assert.equal(removed.comment.to, undefined);

      assert.equal(changed.name.from, from.name);
      assert.equal(changed.name.to, to.name);
      assert.equal(changed['photo.url'].from, from.photo.url);
      assert.equal(changed['photo.url'].to, to.photo.url);
      assert.equal(changed['photo.size.height'].from, from.photo.size.height);
      assert.equal(changed['photo.size.height'].to, to.photo.size.height);
      assert.equal(changed.price.from, from.price);
      assert.equal(changed.price.to, to.price);
      assert.equal(changed.recommends.from, from.recommends);
      assert.equal(changed.recommends.to, to.recommends);

      assert.equal(unchanged.productId.from, from.productId);
      assert.equal(unchanged.productId.to, to.productId);
      assert.equal(unchanged['photo.title'].from, from.photo.title);
      assert.equal(unchanged['photo.title'].to, to.photo.title);
    });
  });
});