我试图通过REST API测试一些数据。数据作为数组存储在项目中。
我希望数据能够恢复＆＃34;每次测试套件运行时，我都知道数组中的数据量。
但是当我测试帖子时。插入的元素在下一个测试套件中，即使我在每次测试之前启动和停止服务器。
app.js需要用户数组，所以通过停止和启动服务器，我认为在每次测试之前我都会干净，但它并没有
Thansk。
global.test = true;
// Test server setup
var app = require('../app');
var testPort = 9999;
var testServer;
// Dependencies
var should = require('should');
var request = require('request');
var baseUrl = 'http://localhost:9999/api';
describe('RESTApi : GET Methods', function () {
//Start the Server before the TESTS
beforeEach(function (done) {
testServer = app.listen(testPort, function () {
console.log("Server is listening on: " + testPort);
done();
})
.on('error', function (err) {
console.log(err);
});
});
afterEach(function () { //Stop server after the test
testServer.close(function () {
console.log("closing server");
});
});
TEST here
});
describe('RESTApi : POST Methods', function () {
//Start the Server before the TESTS
before(function (done) {
testServer = app.listen(testPort, function () {
console.log("Server is listening on: " + testPort);
done();
})
.on('error', function (err) {
console.log(err);
});
});
after(function () { //Stop server after the test
testServer.close(function () {
console.log("closing server");
});
});
TEST here
});
------ App.js ----- 我知道REST api应该在它自己的文件夹中。 ：）
var path = require('path');
var bodyParser = require('body-parser');
//For testing to delete the cached user array
delete require.cache[require.resolve('./users')];
var users = require('./users');
var express = require('express');
function findUser(users, email) {
var result = users.filter(function(u) {
return u.email === email;
});
if(result.length >= 1) {
return result[0];
}
return undefined;
}
var app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.get("/api/users", function(req, res) {
res.send(users);
});
app.get("/api/users/:email", function(req, res) {
var user = findUser(users, req.params.email);
if(!user) {
return res.status(404).send({error: "user not found"});
}
res.send(user);
});
app.post("/api/users", function(req, res) {
var user = req.body;
if(findUser(users, user.email)) {
return res.status(400).send({error: "user exist"});
}
users.push(user);
res.send(user);
});
app.put("/api/users/:email", function(req, res) {
var user = req.body;
if(!findUser(users, req.params.email)) {
return res.status(404).send({error: "user not found"});
}
if(!user) {
return res.status(404).send({error: "no user provided"});
}
for(var i = 0; i < users.length; i += 1) {
if(users[i].email === user.email) {
users[i].password = user.password;
break;
}
}
res.send(user);
});
app.delete("/api/users/:email", function(req, res) {
var user = findUser(users, req.params.email);
if(!user) {
return res.status(404).send({error: "user not found"});
}
for(var i = 0; i < users.length; i++) {
if(users[i].email === req.params.email) {
users.splice(i, 1);
break;
}
}
res.send(user);
});
app.all('*', function(req, res) {
res.status(500).send(req.url + " not a valid");
});
if(global.activeTest === undefined){
app.listen(3000, function() {
console.log("Rest API started, listen on port 3000");
});
}
module.exports = app;
答案 0 :(得分：0)
看起来app.listen()是异步的，因此无论服务器是否停止，您的测试都会继续运行。我会把你的测试放在callback参数中。
答案 1 :(得分：0)
我的解决方案（正如我在上面的评论中提到的）将重构将users var初始化为单独函数的代码，可以在每次测试之前调用它。
var path = require('path');
var bodyParser = require('body-parser');
var express = require('express');
var clone = require('clone'); // <-- add `clone` as a dependency
var users;
function initUsers() {
users = clone(require('./users'));
}
// ... the rest if your code, initializing express/adding route handlers
app.listen(3000, function() {
console.log("Rest API started, listen on port 3000");
});
module.exports = exports = app;
exports.initUsers = initUsers;
在users.js中使用此作为我的示例数据：
module.exports = [
{ email: 'email0', password: 'password0' },
{ email: 'email1', password: 'password1' },
{ email: 'email2', password: 'password2' },
{ email: 'email3', password: 'password3' },
{ email: 'email4', password: 'password4' },
{ email: 'email5', password: 'password5' },
{ email: 'email6', password: 'password6' },
{ email: 'email7', password: 'password7' },
{ email: 'email8', password: 'password8' },
{ email: 'email9', password: 'password9' }
];
我可以在每次测试前通过调用initUsers()成功进行测试，如下所示：
var app = require('../app');
var initUsers = require('../app').initUsers;
var should = require('should');
var request = require('request');
var baseUrl = 'http://localhost:3000/api';
describe('RESTApi', function() {
describe('GET Methods', function () {
beforeEach(function() {
initUsers();
});
it('should get all users initially', function(done) {
request(baseUrl + '/users', function(err, res) {
var data = JSON.parse(res.body);
data.length.should.equal(10);
done();
});
});
it('should remove user', function(done) {
request.del(baseUrl + '/users/email1', function(err, res) {
var data = JSON.parse(res.body);
data.email.should.equal('email1');
data.password.should.equal('password1');
request(baseUrl + '/users', function(err, res) {
var data = JSON.parse(res.body);
data.length.should.equal(9);
done();
});
});
});
it('should get all users again', function(done) {
request(baseUrl + '/users', function(err, res) {
var data = JSON.parse(res.body);
data.length.should.equal(10);
done();
});
});
});
});
如您所见，我写了三个测试。
这些绝不是详尽的测试，但他们验证users在每次测试之前都已正确初始化。