分享程序员开发的那些事...
更新时间：2023-08-19 09:21:19
这是一个可能的解决方案.
Here is a possible solution.
控制器从 ctrlFunc 对象
var ctrlFunc = {
retreiveData: retreiveData,
};
function showdata(req, res) {
ctrlFunc.retreiveData(function (data) {
res.send(data);
});
};
控制器在测试期间需要导出 ctrlFunc 对象(sinon.stub需要访问 ctrlFunc )
Controller need to export ctrlFunc object during test (sinon.stub need access to ctrlFunc)
/*
Only add extra exports during test
this allow sinon.stub to retreive object during test
*/
if (process.env.NODE_ENV === 'test') {
module.exports.ctrlFunc = ctrlFunc;
}
测试文件需要 PersonController ，然后在 PersonController 上存根方法. ctrlFunc 对象
test file require PersonController, then stub method on PersonController.ctrlFunc object
var PersonCtrl = require('../../../api/controllers/PersonController');
stub = sinon.stub(PersonCtrl.ctrlFunc, 'retreiveData', function(cb) {
console.log('into stub function');
cb("Some stub data");
});
我们现在在一起:
控制器文件
controller file
// File: api/controllers/PersonController.js
var fs = require('fs');
var ctrlFunc = {
retreiveData: retreiveData,
};
function retreiveData (cb) {
fs.readFile('./filedata', function (err, data) {
if (err) throw err;
cb(data.toString());
});
};
function showdata(req, res) {
ctrlFunc.retreiveData(function (data) {
res.send(data);
});
};
module.exports = {
showdata: showdata,
};
/*
Only add extra exports during test
this allow sinon.stub to retreive object during test
*/
if (process.env.NODE_ENV === 'test') {
module.exports.ctrlFunc = ctrlFunc;
}
测试文件:
test file:
// test/api/controllers/PersonController.test.js
var request = require('supertest');
var sinon = require('sinon');
describe('GET /person/showdata', function() {
var stub;
before(function() {
var PersonCtrl = require('../../../api/controllers/PersonController');
stub = sinon.stub(PersonCtrl.ctrlFunc, 'retreiveData', function(cb) {
console.log('into stub function');
cb("Some stub data");
});
});
after(function() {
stub.restore();
});
it('should return person show data', function(done) {
request(server)
.get('/person/showdata')
.expect(200)
.expect(/Some stub data/)
.end(function(err, res) {
if (err)
throw err;
done();
});
});
});
测试现在成功
test is now successfull
NODE_ENV=test mocha test/bootstrap.test.js test/api/controllers/PersonController.test.js
GET /person/showdata
into stub function
✓ should return person show data (62ms)
1 passing (2s)