我有一个非常简单的 React/TypeScript 应用程序,我正在尝试学习如何实现测试。我正在使用 React 测试库和 Jest。这是一个非常简单的产品页面,我只是想测试“欢迎来到我们的产品页面”字样是否已呈现。
当我运行测试时,我收到此错误消息:以下错误可能是由于使用错误的测试环境引起的,请参阅https://jestjs.io/docs/configuration#testenvironment-string。考虑使用“jsdom”测试环境。 ReferenceError:文档未定义
。
我在 Stack Overflow 上浏览了类似问题的所有解决方案,但没有任何效果。我尝试添加
/**
* @jest-environment jsdom
*/
到测试文件的顶部,但这只会产生不同的错误消息:ReferenceError:未定义全局
。
如果有任何帮助,我将不胜感激。下面是我的代码:
ProductPage.test.tsx
import React from "react";
import { render, screen } from "@testing-library/react";
import ProductPage from "../ProductPage";
describe("<ProductPage />", () => {
test("should display the product page", () => {
render(<ProductPage />);
expect(
screen.getByText(/Welcome to our product page/)
).toBeInTheDocument();
});
});
jest.config.js
module.exports = {
roots: ["<rootDir>/src"],
transform: {
"^.+\\.tsx?$": "ts-jest",
"^.+\\.svg$": "<rootDir>/svgTransform.js",
"^.+\\.css$": "<rootDir>/cssTransform.js"
},
setupFilesAfterEnv: [
"@testing-library/jest-dom/extend-expect"
],
testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"]
};
tsconfig.json
{
"compilerOptions": {
"target": "es5",
"module": "esnext",
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": true,
"skipLibCheck": true,
"lib": [
"dom",
"dom.iterable",
"esnext"
],
"allowJs": true,
"allowSyntheticDefaultImports": true,
"noFallthroughCasesInSwitch": true,
"moduleResolution": "node",
"resolveJsonModule": true,
"isolatedModules": true,
"noEmit": true,
"jsx": "react-jsx"
},
"include": [
"src"
]
}
package.json
{
"name": "product-page",
"version": "0.1.0",
"private": true,
"dependencies": {
"@apollo/client": "^3.4.17",
"@babel/core": "^7.16.0",
"@babel/preset-env": "^7.16.4",
"@babel/preset-typescript": "^7.16.0",
"@emotion/react": "^11.6.0",
"@emotion/styled": "^11.6.0",
"@mui/material": "^5.1.1",
"@mui/system": "^5.1.1",
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"@types/jest": "^27.0.2",
"@types/node": "^16.11.7",
"@types/react": "^17.0.35",
"@types/react-dom": "^17.0.11",
"babel-jest": "^27.3.1",
"graphql": "^16.0.1",
"jest": "^27.3.1",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-scripts": "4.0.3",
"ts-jest": "^27.0.7",
"typescript": "^4.4.4",
"web-vitals": "^1.0.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "jest",
"test:watch": "jest --watch",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"ts-node": "^10.4.0"
}
}
最佳答案
为了使用 jsdom,您需要添加
testEnvironment: 'jsdom',
到您的jest.config.js
编辑:您可能还需要将其添加为依赖项。
关于javascript - React/TypeScript 测试失败。 "Consider using the "jsdom“测试环境”。,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/70112049/