我来自具有Spring框架的Java经验,正在寻找最优雅的方法来在nodejs中使用模拟编写测试。
对于Java,其外观如下:
@RunWith(SpringJUnit4ClassRunner.class)
public class AccountManagerFacadeTest {
@InjectMocks
AccountManagerFacade accountManagerFacade;
@Mock
IService service
@Test
public void test() {
//before
here you define specific mock behavior
//when
//then
}
}
正在为nodeJS寻找类似的东西,有什么建议吗?
答案 0 :(得分:1)
由于具有JavaScript灵活性,使用node.js进行模拟比Java容易得多。
这是类模拟的完整示例,其中包含以下类:
// lib/accountManager.js
class AccountManager {
create (name) {
this._privateCreate(name);
}
update () {
console.log('update')
}
delete () {
console.log('delete')
}
_privateCreate() {
console.log('_privateCreate')
}
}
module.exports = AccountManager
您可以这样模拟:
// test/accountManager.test.js
const
sinon = require('sinon'),
should = require('should')
AccountManager = require('../lib/accountManager');
require('should-sinon'); // Required to use sinon helpers with should
describe('AccountManager', () => {
let
accountManager,
accountManagerMock;
beforeEach(() => {
accountManagerMock = {
_privateCreate: sinon.stub() // Mock only desired methods
};
accountManager = Object.assign(new AccountManager(), accountManagerMock);
});
describe('#create', () => {
it('call _privateCreate method with good arguments', () => {
accountManager.create('aschen');
should(accountManagerMock._privateCreate).be.calledOnce();
should(accountManagerMock._privateCreate).be.calledWith('aschen');
})
});
});
在这里您可以找到有关模拟类和依赖项的更多示例:https://github.com/Aschen/workshop-tdd/blob/master/step2/test/file.test.js