chai-shallow-deep-almost-equal

It's a fork of https://github.com/michelsalib/chai-shallow-deep-equal which adds .001 float treshold almost-equality feature.

Will shallowly perform a deep almost equal assertion. In other terms is consist of checking that an object, or objects graph, is contained within another one (see examples bellow).

Usage

Browser

1<script src="chai.js"></script>
2<script src="chai-shallow-deep-almost-equal.js"></script>

Node

1var chai = require('chai');
2chai.use(require('chai-shallow-deep-almost-equal'));

Assertions

ShallowDeepAlmostEqual is available for all chai assertion styles:

1var a = {x: 10, y: 10};
2var b = {x: 10.001};
3
4a.should.ShallowDeepAlmostEqual(b);
5expect(a).to.ShallowDeepAlmostEqual(b);
6assert.ShallowDeepAlmostEqual(a, b);

Example

1assert.ShallowDeepAlmostEqual({x: 10, y: 10}, {x: 10.001}); // true
2assert.ShallowDeepAlmostEqual({x: 10, y: 10}, {x: 9.999}); // true
3// assert.ShallowDeepAlmostEqual({x: 10, y: 10}, {x: 9.9}); // fails
4
5// the rest are the original shallowDeepEqualTests
6assert.ShallowDeepAlmostEqual({
7  name: 'Michel',
8  language: 'javascript',
9  tags: [
10    'developer',
11    'gamer'
12  ]},
13  {
14  name: 'Michel',
15  tags: [
16    'developer'
17  ]}); // true
18
19assert.ShallowDeepAlmostEqual([
20    {brand: 'apple', color: 'red'},
21    {brand: 'samsung', color: 'blue'},
22  ],
23  {
24  length: 2,
25  0: {color: 'red'},
26  1: {brand: 'samsung'},
27  }); // true
28
29assert.ShallowDeepAlmostEqual({
30  name: 'Michel',
31  age: undefined
32  },
33  {
34  name: 'Michel',
35  age: 37
36  }); // false (age should not be defined)