我在做jest测试时收到了下面的错误。我已经为错误被发布到的节点模块做了转换忽略。请查看配置并帮助我编译测试用例
尝试了moduleNameMapper和transformIgnorePatterns,但没有成功
错误:
Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.
Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.
By default "node_modules" folder is ignored by transformers.
Here's what you can do:
• If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
• If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
• To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
• If you need a custom transformation specify a "transform" option in your config.
• If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.
You'll find more details and examples of these config options in the docs:
https://jestjs.io/docs/configuration
For information about custom transformations, see:
https://jestjs.io/docs/code-transformation
Details:
C:\projectName\node_modules\@ms\centr-loader\dist\loader\index.js:7
export { initialize, preloadFeature, bootstrapFeature } from './foreignEnvLoader';
^^^^^^
SyntaxError: Unexpected token 'export'
2 | import { Stack, DetailsListLayoutMode, StackItem } from '@fluentui/react';
3 | import { Dropdown } from '@fluentui/react/lib/Dropdown';
> 4 | import { DataGrid, Loading } from '@fluentui/react';
| ^
at Runtime.createScriptFromCode (../node_modules/jest-runtime/build/index.js:1505:14)
字符串
jest.config.ts
// Jest.config.ts
import type { Config } from 'jest';
const config: Config = {
testEnvironment: 'jsdom',
setupFilesAfterEnv: ['<rootDir>/support/setupTests.ts'],
moduleFileExtensions: ["js", "jsx", "tsx", "ts", "mjs", "mjx", "json", "node"],
preset: 'ts-jest',
moduleNameMapper: {
'\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|mjs|ms|mjx)$': '<rootDir>/__mocks__/fileMock.js',
'\\.(css|less)$': 'identity-obj-proxy'
},
testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?|mjs?|mjx?)$",
transform: {
'^.+\\.(ts|tsx)$': 'ts-jest',
'^.+\\.(js|jsx|mjs|ms|mts)$': 'babel-jest',
"^.+\\.m?jsx?$": "babel-jest"
},
transformIgnorePatterns: [
'!<rootDir>/node_modules/'
],
};
export default config;
型
tsconfig.json
{
"compilerOptions": {
"target": "esnext",
"useDefineForClassFields": true,
"lib": [
"DOM",
"DOM.Iterable",
"esnext"
],
"allowJs": false,
"skipLibCheck": true,
"esModuleInterop": true,
"module": "commonjs",
"allowSyntheticDefaultImports": true,
"strict": true,
"forceConsistentCasingInFileNames": true,
"moduleResolution": "node",
"resolveJsonModule": true,
"isolatedModules": false,
"noEmit": true,
"jsx": "react",
"types": [
"jest"
]
},
"include": [
"src",
"test"
],
"references": [
{
"path": "./tsconfig.node.json"
}
]
}
型
.babelrc
{
"env": {
"test": {
"presets": [
[
"@babel/preset-env",
{
"modules": false
}
]
],
"plugins": [
[
"@babel/plugin-transform-modules-commonjs",
{
"spec": true
}
]
]
}
}
}
型
1条答案
按热度按时间8qgya5xd1#
尝试将
transformIgnorePatterns
修改为字符串
每当特定节点模块弹出此错误时,请将其名称添加到
transformedModules
数组中