cnpm install -g --save mocha
cnpm install -g --save chai
cnpm install -g --save istanbul
const {should,expect,assert} = require('chai');
const {add,mul} = require('./math')
describe("#math",()=>{
describe('add',()=>{
it('shoule return 5 when 2+3',()=>{
expect(add(2,3),5);
});
it('shoule return 5 when 2+3',()=>{
expect(add(2,-3),-1);
})
})
describe('mul',()=>{
it('shoule return 5 when 2*3',()=>{
expect(add(2,3),6);
});
it('shoule return 5 when 2*3',()=>{
expect(add(2,-3),-6);
})
})
})
这里很重要
"scripts": {
"test": "mocha test/mocha.js",
"cover": "istanbul cover ./node_modules/mocha/bin/_mocha test/mocha.js"
},