带有错误"DataSource is not set for this entity"的开玩笑测试事件

Question

我正在构建一个具有typeorm的nodejs|express API，当通过邮递员或某些客户端调用路由时，一切正常。这个问题出现在开玩笑的测试中，我得到了以下错误："没有为此实体设置DataSource">。我是不是错过了什么？

• 节点：16.15.1
• "超级测试"："6.2.4">
• "ts节点"："10.9.1〃
• "typeorm"："0.3.7〃
• "typescript"："4.7.4">
• "节点postgres"："0.6.2〃
• "形式"："7.1.0">
• "pg"："8.7.3">
• "笑话"："28.1.3〃
• "ts笑话"："28.0.7〃
• "express"："4.18.1">

我正在使用Postgres数据库进行测试。

笑话配置：

module.exports = async () => {
return {
preset: "ts-jest",
testEnvironment: "node",
verbose: true,
moduleNameMapper: {
"@exmpl/(.*)": "<rootDir>/src/$1"
},
};
}

数据源文件：

import { DataSource } from "typeorm"
import path from "path"
export const AppDataSource = new DataSource({
name: "default",
migrationsTableName: 'migrations',
type: "postgres",
host: process.env.POSTGRES_HOST,
port: Number(process.env.POSTGRES_PORT),
username: process.env.POSTGRES_USER,
password: process.env.POSTGRES_PASSWORD,
database: process.env.POSTGRES_DB,
synchronize: false,
logging: false,
entities: [path.join(__dirname, '../entities/**/*.entity.js')],
migrations: [path.join(__dirname, '../migrations/**/*.js')],
subscribers: [],
cache: true
})

测试文件：

import path from "path";
import request from "supertest"
import { AppDataSource } from "../src/db/DataSource"
import { Role } from "../src/entities/User/Role.enum"
import app from "../src/App"

let connection: any;
describe('Auth', () => {
beforeAll(async () => {
AppDataSource.setOptions({
entities: [path.join(__dirname, '../dist/entities/**/*.entity.js')],
migrations: [path.join(__dirname, '../dist/migrations/**/*.js')],
synchronize: true,
dropSchema: true,
})
connection = await AppDataSource.initialize()
await connection.synchronize(true)
})
afterAll(async () => {
await connection.destroy()
})

test('should signUp', async () => {
const response = await request(app)
.post('/auth/register')
.send({
firstName: "test",
lastName: "test",
email: "[e-mail]",
role: Role.USER,
status: "active",
password: "Pa$$w0rd"
})
console.log(response.body)
//Temporary pass
expect(2+2).toBe(4)
})
})

Babel配置：

module.exports = {
presets: [
['@babel/preset-env', {targets: {node: 'current'}}],
'@babel/preset-typescript',
],
plugins: [
['@babel/plugin-syntax-decorators', { decoratorsBeforeExport: true }],
['@babel/plugin-proposal-decorators', { decoratorsBeforeExport: true }],
['@babel/plugin-proposal-class-properties', { "loose": true }],
]
};

tsconfig:

{
"compilerOptions": {
/* Language and Environment */
"target": "es2016",                                 
"experimentalDecorators": true,                   
"emitDecoratorMetadata": true,                  
/* Modules */
"module": "commonjs",                               
"moduleResolution": "node",                       
"rootDirs": ["src/", "config/"],                                   
"typeRoots": ["./node_modules/@types", "src/typings"],                                  
/* JavaScript Support */
/* Emit */
"declaration": true,                              
"sourceMap": true,                                
"outDir": "dist",                                   
"removeComments": true,                           
/* Interop Constraints */
"allowSyntheticDefaultImports": true,           
"esModuleInterop": true,                             
"forceConsistentCasingInFileNames": true,           
/* Type Checking */
"strict": true,                                     
"noImplicitAny": true,                            
"strictNullChecks": true,                         
"strictPropertyInitialization": false,             
/* Completeness */
"skipLibCheck": true                                
},
"include": ["src/**/*"]
}

Answer 1

经过一番研究，我发现问题出在实体文件夹的错误路径上。它不应该是已编译文件的路径，而应该是typescript源文件的路径。

我发布这个答案，以防有人有同样的问题。

我替换了这个：

AppDataSource.setOptions({
entities: [path.join(__dirname, '../dist/entities/**/*.entity.js')],
migrations: [path.join(__dirname, '../dist/migrations/**/*.js')],
synchronize: true,
dropSchema: true,
})

这个：

AppDataSource.setOptions({
entities: entities: [path.join(__dirname, '../../src/entities/**/*.entity.ts')],
migrations: [path.join(__dirname, '../../src/migrations/**/*.ts')],
synchronize: true,
dropSchema: true,
})

我不知道为什么会这样，所以如果有人知道解释一下就太好了。