目录
1. 简介
2. 准备开始
3. Restful API测试实战
Example 1 - GET
Example 2 - Post
Example 3 - Put
Example 4 - Delete
4. Troubleshooting
5. 参考文档
简介
经过上一篇文章的介绍,相信你已经对mocha, chai有一定的了解了, 本篇主要讲述如何用supertest来测试nodejs项目中的Restful API, 项目基于express框架。
SuperTest 是 SuperAgent一个扩展, 一个轻量级 HTTP AJAX 请求库.
SuperTest provides high-level abstractions for testing node.js API endpoint responses with easy to understand assertions.
准备开始
npm安装命令
npm install supertest
nodejs项目文件目录结构如下
├── config
│ └── config.json
├── controllers
│ └── dashboard
│ └── widgets
│ └── index.js
├── models
│ └── widgets.js
├── lib
│ └── jdbc.js
├── package.json
└── test
└── controllers
└── dashboard
└── widgets
└── index_IntegrationTest.js
测试代码写在index_IntegrationTest.js这个文件中
Restful API测试实战
测试依赖库
var express = require('express');
var kraken = require('kraken-js');
var request = require('supertest');
var chai = require('chai');
var assert = chai.assert;
##转载注明出处:http://www.cnblogs.com/wade-xu/p/4673460.html
Example 1 - GET
Controller/dashboard/widgets/index.js
var _widgets = require('../../../models/widgets.js'); module.exports = function(router) { router.get('/', function(req, res) {
_widgets.getWidgets(req.user.id)
.then(function(widgets){
return res.json(widgets);
})
.catch(function(err){
return res.json ({
code: '000-0001',
message: 'failed to get widgets:'+err
});
});
});
};
测试代码:
var kraken = require('kraken-js');
var express = require('express');
var request = require('supertest');
var aweb = require('acxiom-web');
var chance = new(require('chance'))();
var chai = require('chai');
var assert = chai.assert; describe('/dashboard/widgets', function() { var app, mock; before(function(done) {
app = express();
app.on('start', done); app.use(kraken({
basedir: process.cwd(),
onconfig: function(config, next) {
//some config info next(null, config);
}
})); mock = app.listen(1337); }); after(function(done) {
mock.close(done);
}); it('get widgets', function(done) {
request(mock)
.get('/dashboard/widgets/')
.set('Accept', 'application/json')
.expect(200)
.expect('Content-Type', 'application/json; charset=utf-8')
.end(function(err, res) {
if (err) return done(err);
assert.isArray(res.body, 'return widgets object');
done();
});
}); });
Example 2 - Post
被测代码:
router.post('/', function(req, res) {
_widgets.addWidget(req.user.id, req.body.widget)
.then(function(widget){
return res.json(widget);
})
.catch(function(err){
return res.json ({
code: '000-0002',
message: 'failed to add widget:' + err
});
});
});
测试代码:
it('add widgets', function(done) {
var body = {
widget: {
type: 'billing',
color: 'blue',
location: {
x: '1',
y: '5'
}
}
}; request(mock)
.post('/dashboard/widgets/')
.send(body)
.expect(200)
.expect('Content-Type', /json/)
.end(function(err, res) {
if (err) return done(err);
assert.equal(res.body.type, 'billing');
assert.equal(res.body.color, 'blue');
done();
});
});
##转载注明出处:http://www.cnblogs.com/wade-xu/p/4673460.html
Example 3 - Put
被测代码
router.put('/color/:id', function(req, res) {
_widgets.changeWidgetColor(req.params.id, req.body.color)
.then(function(status){
return res.json(status);
})
.catch(function(err){
return res.json ({
code: '000-0004',
message: 'failed to change widget color:' + err
});
});
});
测试代码
describe('change widget color', function() {
var id = '';
before(function(done) {
var body = {
widget: {
type: 'billing',
color: 'blue',
location: {
x: '1',
y: '5'
}
}
}; request(mock)
.post('/dashboard/widgets/')
.send(body)
.expect(200)
.expect('Content-Type', /json/)
.end(function(err, res) {
if (err) return done(err);
id = res.body.id;
done();
}); }); it('change widget color to white', function(done) {
var body = {
color: 'white'
}; request(mock)
.put('/dashboard/widgets/color/' + id)
.send(body)
.expect(200)
.expect({
status: 'success'
})
.expect('Content-Type', /json/)
.end(function(err, res) {
if (err) return done(err);
done();
});
});
});
在这个测试case中,前提是要先create 一个widget, 拿到id之后你才可以针对这个刚创建的widget修改, 所以在it之前用了 before 做数据准备。
Example 4 - Delete
被测代码
router.delete('/:id', function(req, res) {
_widgets.deleteWidget(req.user.id, req.params.id)
.then(function(status){
return res.json(status);
})
.catch(function(err){
return res.json ({
code: '000-0003',
message: 'failed to delete widget:' + err
});
});
});
测试代码
describe('delete widget', function() {
var id = '';
before(function(done) {
var body = {
widget: {
type: 'billing',
color: 'blue',
location: {
x: '1',
y: '5'
}
}
}; request(mock)
.post('/dashboard/widgets/')
.send(body)
.expect(200)
.expect('Content-Type', /json/)
.end(function(err, res) {
if (err) return done(err);
id = res.body.id;
done();
}); }); it('delete a specific widget', function(done) {
request(mock)
.del('/dashboard/widgets/' + id)
.expect(200)
.expect('Content-Type', /json/)
.end(function(err, res) {
if (err) return done(err);
assert.deepEqual(res.body, {
status: 'success'
});
done();
});
});
});
注意这里用的是del 不是 delete, Supertest提供的delete方法是del, 不是delete
##转载注明出处:http://www.cnblogs.com/wade-xu/p/4673460.html
测试结果如下:
Troubleshooting
1. 当你用request().delete() 时报错TypeError: undefined is not a function
换成request().del()
参考文档
Mocha: http://mochajs.org/
Chai: http://chaijs.com/
SuperTest: https://www.npmjs.com/package/supertest
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