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jest.config.js
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jest.config.js
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// Jest 27 has experimental support for ESM:
// https://jestjs.io/docs/ecmascript-modules,
// but we'll just specify the ESM modules for now.
const nodeModulesToTransform = [
// most of these are in the dependency tree for `unified`
'unified',
'bail',
'is-plain-obj',
'trough',
'unist-*',
'mdast-*',
'hast-*',
'micromark-*',
'remark-.*',
'rehype-.*',
'parse-entities',
'character-entities',
'is-absolute-url',
'html-void-elements',
'stringify-entities',
'ccount',
];
module.exports = {
collectCoverageFrom: [
'**/*.{js,jsx,ts,tsx}',
'!**/*.d.ts',
'!**/node_modules/**',
],
moduleNameMapper: {
// Handle CSS imports (without CSS modules)
'^.+\\.(css|sass|scss)$': '<rootDir>/tests/stylesMock.js',
/* Handle image imports
https://jestjs.io/docs/webpack#handling-static-assets */
'^.+\\.(jpg|jpeg|png|gif|webp|svg)$': '<rootDir>/tests/filesMock.js',
},
setupFilesAfterEnv: ['<rootDir>/tests/setup.js'],
testPathIgnorePatterns: [
'<rootDir>/node_modules/',
'<rootDir>/.next/',
'<rootDir>/tests/cypress',
],
testEnvironment: 'jsdom',
transform: {
/* Use babel-jest to transpile tests with the next/babel preset
https://jestjs.io/docs/configuration#transform-objectstring-pathtotransformer--pathtotransformer-object */
'^.+\\.(js|jsx|ts|tsx)$': ['babel-jest', { presets: ['next/babel'] }],
},
transformIgnorePatterns: [
`<rootDir>/node_modules/(?!${nodeModulesToTransform.join('|')})`,
],
};