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Update moduleNameMapper jest config and remove extra deps #36787

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Merged
ijjk merged 5 commits into from
May 10, 2022
Merged

Update moduleNameMapper jest config and remove extra deps #36787

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aa933a7
Update moduleNameMapper jest config and remove extra deps
ijjk May 9, 2022
426afcf
move svg mock to its own entry for easier overriding
ijjk May 9, 2022
6ac399a
Merge branch 'canary' into update/jest-config
ijjk May 10, 2022
e57345f
remove package script
ijjk May 10, 2022
ca3a66a
Merge branch 'canary' into update/jest-config
ijjk May 10, 2022
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5 changes: 0 additions & 5 deletions examples/with-jest/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,6 @@
"private": true,
"scripts": {
"dev": "next dev",
"lint": "next lint",
"build": "next build",
"start": "next start",
"test": "jest --watch",
Expand All @@ -18,10 +17,6 @@
"@testing-library/react": "12.1.2",
"@testing-library/user-event": "13.5.0",
"@types/react": "17.0.38",
"babel-jest": "27.4.5",
"eslint": "8.5.0",
"eslint-config-next": "latest",
"eslint-plugin-testing-library": "5.0.1",
"jest": "27.4.5",
"typescript": "4.5.4"
}
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14 changes: 9 additions & 5 deletions packages/next/build/jest/jest.ts
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Expand Up @@ -76,10 +76,6 @@ export default function nextJest(options: { dir?: string } = {}) {
...resolvedJestConfig,

moduleNameMapper: {
// Custom config will be able to override the default mappings
// moduleNameMapper is matched top to bottom hence why this has to be before Next.js internal rules
...(resolvedJestConfig.moduleNameMapper || {}),

// Handle CSS imports (with CSS modules)
// https://jestjs.io/docs/webpack#mocking-css-modules
'^.+\\.module\\.(css|sass|scss)$':
Expand All @@ -89,9 +85,17 @@ export default function nextJest(options: { dir?: string } = {}) {
'^.+\\.(css|sass|scss)$': require.resolve('./__mocks__/styleMock.js'),

// Handle image imports
'^.+\\.(png|jpg|jpeg|gif|webp|avif|ico|bmp|svg)$': require.resolve(
'^.+\\.(png|jpg|jpeg|gif|webp|avif|ico|bmp)$': require.resolve(
`./__mocks__/fileMock.js`
),

// Keep .svg to it's own rule to make overriding easy
'^.+\\.(svg)$': require.resolve(`./__mocks__/fileMock.js`),

// custom config comes last to ensure the above rules are matched,
// fixes the case where @pages/(.*) -> src/pages/$! doesn't break
// CSS/image mocks
...(resolvedJestConfig.moduleNameMapper || {}),
},
testPathIgnorePatterns: [
// Don't look for tests in node_modules
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