chai-increasing

Chai 匹配器,用于递增/递减序列

一个用于在 chai 中对 递增/递减序列 进行断言的插件。

用法

单调递增/递减

expect([1,2,2,3,3,4]).to.be.increasing;
expect([5,4,4,4,4,3]).to.be.decreasing;
expect([1,1,1,1,1,1]).to.be.increasing;
expect([1,1,1,1,1,1]).to.be.decreasing;

严格递增/递减

expect([1,2,3,4,5]).to.be.strictly.increasing;
expect([1,2,3,3,4,5]).not.to.be.strictly.increasing;
expect([10,9,8,7,6]).to.be.strictly.increasing;
expect([10,9,8,7,7]).not.to.be.strictly.decreasing;

空数组 空虚地 递增/递减

expect([]).to.be.increasing;
expect([]).to.be.decreasing;
expect([]).to.be.strictly.increasing;
expect([]).to.be.strictly.decreasing;

额外内容

// supports Strings, Floats and Immutable.js Lists
expect(['Apple','Banana','Coconut']).to.be.strictly.increasing;
expect([1.15, 1.75, 3.28, 4.96]).to.be.strictly.increasing;
expect(Immutable.List.of([1,2,3,4])).to.be.strictly.increasing;

非递减/非递增别名

// "nondecreasing" and "nonincreasing" may be used instead 
// of "increasing" and "decreasing" for clarity; the behaviour is the same.
expect([1,1,1]).to.be.increasing;
expect([1,1,1]).to.be.nondecreasing;

安装

npm install chai-increasing --save-dev
var chai = require('chai');
chai.use(require('chai-increasing'));

许可证

MIT 许可证。
版权所有 © 2016 James Lawson