chai-stats
Statistical and additional numerical assertions for the Chai Assertion Library.
npm install chai-stats
Want to see pretty graphs? Log in now!
1 | downloads in the last day |
3 | downloads in the last week |
26 | downloads in the last month |
Last Published By | |
---|---|
Version | 0.3.0 last updated 8 months ago |
Repository | git://github.com/chaijs/chai-stats.git (git) |
Bugs | https://github.com/chaijs/chai-stats/issues |
Dependencies | None |
Starred by | fgribreau |
Chai Stats
Statistical and additional numerical assertions for the Chai Assertion Library.
Installation
Node.js
Chai spies are available on npm.
$ npm install chai-stats
Browser
Include chai-stats.js
after including chai.js
.
<script src="chai-stats.js"></script>
Plug In
If you are using chai-stats
in the browser, there is nothing you need to do. It will detect chai
in the global
namespace and automagically get used.
If you are using node, here is a useful bit.
var chai = require('chai')
, chaiStats = require('chai-stats');
chai.use(chaiStats);
var should = chai.should()
, expect = chai.expect;
API Reference
.almost.equal(expected, [precision])
The same as NumPy's assert_almost_equal
, for scalars.
Assert near equality: abs(expected-actual) < 0.5 * 10**(-decimal)
expect(3.1415).to.almost.equal(3.14159, 3);
assert.almostEqual(3.1416, 3.14159, 3, 'these numbers are almost equal');
.deepAlmostEqual(actual, expected, [decimal, message])
The same as NumPy's assert_almost_equal
, for objects whose leaves are all numbers.
Assert near equality: abs(expected-actual) < 0.5 * 10**(-decimal)
for every leaf.
expect({ pi: 3.1416 }).to.almost.eql({ pi: 3.14159 }, 3);
assert.deepAlmostEqual({ pi: 3.1416 }, { pi: 3.14159 }, 3);
.sum
Modifies the assertion subject with the sum of an array of number so it can be compared using chai's core assertions.
expect([ 1, 2, 3 ]).to.have.sum.equal(6);
expect([ 1, 2, 3 ]).to.have.sum.above(5);
expect([ 1, 2, 3 ]).to.have.sum.below(7);
.mean
Modifies the assertion subject with the mean of an array of number so it can be compared using chai's core assertions.
expect([ 1, 2, 3 ]).to.have.mean.equal(2);
expect([ 1, 2, 3 ]).to.have.mean.above(1.5);
expect([ 1, 2, 3 ]).to.have.mean.below(2.5);
.deviation
Modifies the assertion subject with the standard deviations of an array of number so it can be compared using chai's core assertions.
expect([ 1, 2, 3, 4 ]).to.have.deviation.almost.equal(1.290, 2);
Tests
Tests are written using mocha in the BDD interface.
Node tests can be executed using make test
. Browser tests can be seen by opening test/browser/index.html
.
Contributors
repo age : 3 months ago
commits : 21
active : 5 days
files : 14
authors :
17 Jake Luer 81.0%
4 josher19 19.0%
License
(The MIT License)
Copyright (c) 2012 Jake Luer jake@alogicalparadox.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE