Javascript 如何在nodejs上编写postgresql数据库的单元测试

我正试图用postgresql为我的API编写测试

似乎测试没有命中正确的数据库进行响应，或者我的配置不适合测试

我期望测试检查我的令牌并将其视为来自主体的请求，但测试甚至没有识别请求主体（req.body）

我需要指导

我的档案如下。 test.js

mypackage.json

{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "test": "nyc mocha --compilers js:@babel/register server/test/*.spec.js --exit",
    "start:dev": "npm run build && npm run serve",
    "start": "nodemon --exec babel-node server/app/app.js",
    "heroku": "node server/app/app.js",
    "build": "babel server -d lib",
    "serve": "node lib/app/app.js",
    "coverage": "nyc report --reporter=text-lcov | coveralls",
    "migration": "psql -U postgres -p 5433 -f server/model/table.sql",
    "seed": "babel-node server/model/seeding.js",
    "data:dev": "npm run migration && npm run seed"
  },
  "author": "darot",
  "license": "ISC",
  "dependencies": {
    "bcryptjs": "^2.4.3",
    "body-parser": "^1.18.3",
    "dotenv": "^6.2.0",
    "express": "^4.16.4",
    "express-jwt": "^5.3.1",
    "jsonwebtoken": "^8.4.0",
    "morgan": "^1.9.1",
    "pg": "^7.8.0"
  },
  "devDependencies": {
    "@babel/cli": "^7.2.3",
    "@babel/core": "^7.2.2",
    "@babel/node": "^7.0.0",
    "@babel/preset-env": "^7.3.1",
    "@babel/register": "^7.0.0",
    "babel-eslint": "^10.0.1",
    "babel-jest": "^24.0.0",
    "babel-loader": "^8.0.5",
    "babel-preset-env": "^1.7.0",
    "babel-register": "^6.26.0",
    "chai": "^4.2.0",
    "chai-http": "^4.2.1",
    "codecov": "^3.1.0",
    "coveralls": "^3.0.2",
    "cross-env": "^5.2.0",
    "eslint": "^5.12.1",
    "eslint-config-airbnb-base": "^13.1.0",
    "eslint-plugin-import": "^2.15.0",
    "istanbul": "^0.4.5",
    "mocha": "^5.2.0",
    "nodemon": "^1.18.9",
    "nyc": "^13.1.0",
    "travis": "^0.1.1"
  }
}

我的数据库配置

import pg from 'pg';

import dotenv from 'dotenv';

dotenv.config();

process.env.NODE_ENV = 'test';

let connection;
const string = {
  user: process.env.DB_USER,
  host: process.env.DB_HOST,
  database: process.env.DB_NAME,
  password: process.env.DB_PASS,
  port: process.env.DB_PORT,
  max: 10,
  idleTimeoutMillis: 3000,
};
const stringTest = {
  user: process.env.DB_USER,
  host: process.env.DB_HOST,
  database: process.env.DB_NAME2,
  password: process.env.DB_PASS,
  port: process.env.DB_PORT,
  max: 10,
  idleTimeoutMillis: 3000,
};
if (process.env.NODE_ENV === 'production') {
  connection = {
    connectionString: process.env.DATABASE_URL,
    ssl: true,
  };
} else if (process.env.NODE_ENV === 'test') {
  connection = stringTest;
} else {
  connection = string;
}
const pool = new pg.Pool(connection);

export default pool;

---

我可以通过在测试套件中的post方法下设置授权来解决这个问题

---

.set（'Authorization'，token）

done

应该在

end

回调中调用。这至少是你的问题之一。你不应该在单元测试中碰到真正的数据库，你需要模拟所有的数据库请求。我发现传递的令牌无法解析。通常，我在postman上使用这个令牌，它工作得很好，可能这个令牌在postman上被解析为req.auth或req.headers。如何解析它以进行测试。

import pg from 'pg';

import dotenv from 'dotenv';

dotenv.config();

process.env.NODE_ENV = 'test';

let connection;
const string = {
  user: process.env.DB_USER,
  host: process.env.DB_HOST,
  database: process.env.DB_NAME,
  password: process.env.DB_PASS,
  port: process.env.DB_PORT,
  max: 10,
  idleTimeoutMillis: 3000,
};
const stringTest = {
  user: process.env.DB_USER,
  host: process.env.DB_HOST,
  database: process.env.DB_NAME2,
  password: process.env.DB_PASS,
  port: process.env.DB_PORT,
  max: 10,
  idleTimeoutMillis: 3000,
};
if (process.env.NODE_ENV === 'production') {
  connection = {
    connectionString: process.env.DATABASE_URL,
    ssl: true,
  };
} else if (process.env.NODE_ENV === 'test') {
  connection = stringTest;
} else {
  connection = string;
}
const pool = new pg.Pool(connection);

export default pool;