使用 TypeORM 进行玩笑测试答案

【问题标题】：Jest Testing with TypeORM使用 TypeORM 进行玩笑测试
【发布时间】：2022-06-15 22:52:11
【问题描述】：

我正在尝试让 Jest 使用 TypeORM Expo-Example project

为了让 ts-jest 和 expo-jest 正常工作，我做了很多工作。我遵循了Jest 和Expo Jest 的官方指南。我能够 expo 初始化一个新的空项目（不是 TypeORM 示例）并让 Expo-Jest 按预期工作，但是当我将更改应用到 TypeORM expo 项目时，它遇到了问题。

我认为 expo-jest 是首选。从 TypeORM Expo-Example repo 的干净克隆开始可能会更容易。

我已将 package.json 编辑为一个不应该有依赖问题的版本，如果它是一个更容易的起点。（可以修改或删除玩笑的东西以支持单独的配置）

{
  "name": "expo-example",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "@babel/core": "^7.18.0",
    "@babel/preset-env": "^7.18.0",
    "@types/jest": "^27.5.1",
    "@types/node": "^10.1.3",
    "@types/react": "~17.0.21",
    "@types/react-native": "~0.67.6",
    "@types/react-test-renderer": "^16.0.1",
    "babel-plugin-transform-typescript-metadata": "^0.3.2",
    "jest": "27",
    "jest-expo": "^45.0.1",
    "react-native-typescript-transformer": "^1.2.9",
    "react-test-renderer": "17",
    "typescript": "^4.6.4"
  },
  "scripts": {
    "start": "expo start --dev-client",
    "eject": "expo eject",
    "android": "expo run:android",
    "ios": "expo run:ios",
    "test": "jest",
    "postinstall": "patch-package"
  },
  "jest": {
    "preset": "jest-expo",
    "moduleFileExtensions": [
      "ts",
      "tsx",
      "js"
    ],
    "transform": {
      "^.+\\.(js)$": "<rootDir>/node_modules/babel-jest",
      "\\.(ts|tsx)$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
    },
    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$",
    "testPathIgnorePatterns": [
      "\\.snap$",
      "<rootDir>/node_modules/"
    ],
    "cacheDirectory": ".jest/cache",
    "transformIgnorePatterns": [
      "node_modules/(?!((jest-)?react-native|@react-native(-community)?)|expo(nent)?|@expo(nent)?/.*|@expo-google-fonts/.*|react-navigation|@react-navigation/.*|@unimodules/.*|unimodules|sentry-expo|native-base|react-native-svg)"
    ]
  },
  "dependencies": {
    "babel-jest": "27",
    "expo": "^45.0.0",
    "expo-splash-screen": "~0.15.1",
    "expo-sqlite": "~10.2.0",
    "expo-status-bar": "~1.3.0",
    "patch-package": "^6.4.7",
    "postinstall-postinstall": "^2.1.0",
    "react": "17.0.2",
    "react-dom": "17.0.2",
    "react-native": "0.68.1",
    "react-native-sqlite-storage": "^4.1.0",
    "react-native-web": "0.17.7",
    "reflect-metadata": "^0.1.13",
    "ts-jest": "27",
    "tslib": "^1.9.1",
    "typeorm": "^0.3.6"
  }
}

【问题讨论】：

如果您可以发布您遇到的错误和您尝试过的内容，这将有很大帮助

标签： react-native expo typeorm ts-jest babel-jest

【解决方案1】：

我有同样的问题，当我尝试使用 expo-sqlite 驱动程序测试 getConnection() typeorm 函数或 DataSource({...}).initialize() 的返回时出现错误...工作我使用 slite3 lib 而不是 expo-sqlite... 所以它可以工作，请参阅：https://github.com/EmanuelVogt/expo-sqlite-typeorm-jest

【讨论】：