[TOC]
一、搭建环境
1.创建NodeJS工程
mkdir project1
cd project1
npm init
mkdir tests
mkdir js
2.安装Karma、初始化phantomjs
npm install -g karma-cli
karma init
node ./node_modules/phantomjs-prebuilt/install
3.修改karma.conf.js
- 修改
singleRun为true -
files里添加"./js/*.js"和"./tests/unit/*.spec.js"
cd tests
mkdir unit
cd ..
二、单元测试
1.创建库文件与测试文件
在./js/index.js中添加如下函数:
function add(a,b){
if( a==0 ){
return b;
}
if( b==0 ){
return a;
}
return a+b;
}
在./test/unit/index.spec.js中，添加如下代码:
describe("unit test start",function(){
it("test add function",function(){
expect(add(1,2)).toBe(3);
});
});
2. 执行单元测试
karma start
运行结果:
27 03 2021 17:51:40.864:INFO [karma-server]: Karma v6.3.1 server started at http://localhost:9876/
27 03 2021 17:51:40.866:INFO [launcher]: Launching browsers PhantomJS with concurrency unlimited
27 03 2021 17:51:40.871:INFO [launcher]: Starting browser PhantomJS
27 03 2021 17:51:41.474:INFO [PhantomJS 2.1.1 (Mac OS 0.0.0)]: Connected on socket NOJ6aNW_85iLrV8iAAAB with id 95525832
PhantomJS 2.1.1 (Mac OS 0.0.0): Executed 1 of 1 SUCCESS (0.006 secs / 0.001 secs)
TOTAL: 1 SUCCESS
三、生成测试覆盖率报告
1.安装karma-coverage
npm install karma-coverage --save
2.配置
在karma.conf.js文件中
-
preprocessors里添加'./js/*.js': ['coverage']
preprocessors: {
'./js/*.js': ['coverage']
},
- 添加
coverageReporter，其值设置为{ type : 'html', dir : 'docs/' }
coverageReporter: {
type : 'html',
dir : 'docs/'
},
-
reporters中添加coverage
reporters: ['progress', 'coverage'],
3.执行，查看结果
karma start
结果保存在./docs/PhantomJS 2.1.1 (Mac OS 0.0.0)/index.html里，发现测试覆盖只有60%
60% Statements 3/5
50% Branches 2/4
100% Functions 1/1
60% Lines 3/5
4.添加测试用例，将测试覆盖率达到100%。
在./tests/unit/index.spec.js中，添加如下测试用例：
expect(add(0,2)).toBe(2);
expect(add(2,0)).toBe(2);
5.执行，查看结果
karma start
最终结果
100% Statements 5/5
100% Branches 4/4
100% Functions 1/1
100% Lines 5/5
四、E2E测试:Selenium
1.安装selenium-webdriver
npm install selenium-webdriver
2.安装chromedriver
brew install chromedriver
3.编写测试用例
在./tests/e2e/index.spec.js文件中，代码如下:
const {Builder, By, Key, until} = require('selenium-webdriver');
(async function example() {
let driver = await new Builder().forBrowser('chrome').build();
try {
await driver.get('http://www.google.com/ncr');
await driver.findElement(By.name('q')).sendKeys('webdriver', Key.RETURN);
await driver.wait(until.titleIs('webdriver - Google Search'), 1000);
} finally {
await driver.quit();
}
})();
4.运行
node ./tests/e2e/index.spec.js
五、UI测试:Backtop
1.安装backtop
npm install -g backstopjs
2.初始化
backstop init
六、Server测试: Mocha
1.安装express
npm install express --save
npm install supertest --save
npm install mocha mochawesome
2.Mock Server
在js/app.js中，代码如下:
const express = require('express');
var app = express();
app.get('/test',(req,res)=>{
res.send({
data: 'Hello World!'
});
});
const server = app.listen(3000,()=>{
console.log('server start');
});
3.编写测试代码
tests/service/app.spec.js中，代码如下:
const superagent = require('supertest');
const app = require('../../js/app');
function request(){
return superagent(app.listen());
}
describe('interface test',function(done){
it('test the test',function(done){
request()
.get('/test')
.expect(200)
.expect('Content-Type',/json/)
.end(function(err,res){
if( err ){
done(err);
}
if( res.body.data == "Hello World!" ){
done();
}else{
done(new Error('get data failed'));
}
})
})
});
在./mochaRunner.js中，代码如下:
const Mocha = require('mocha');
var mocha = new Mocha({
reporter: "mochawesome",
reporterOptions: {
reportDir: './docs/mochawesome/'
// quiet: true
}
});
mocha.addFile("./tests/service/app.spec.js");
mocha.run(function(){
process.exit(0);
})
4.执行测试
node ./mochaRunner.js
