:boom: RegressionHelp Wanted
Description
🐛 Bug Report
Running a jest test results in a test build failure:
TypeError: dupMap.get is not a function
at ModuleMap._getModuleMetadata (node_modules/jest-haste-map/build/ModuleMap.js:231:14)
When console logging dupMap at the source location, dupMap is undefined. I don't see a control flow where this is possible because when dupMap is declared, it is set to EMPTY_MAP if it's value would be undefined.
The error is also bound to a material-ui style object, which doesn't make much sense.
To Reproduce
Steps to reproduce the behavior:
I'm afraid I don't have a reproduction. I'm using lerna and material-ui in jest. The library I'm experiencing the issue with is dependent on another library in my mono repo.
Expected behavior
The test runs without problems
Link to repl or repo (highly encouraged)
Unavailable, sorry
envinfo
System:
OS: Linux 5.0 Ubuntu 18.04.2 LTS (Bionic Beaver)
CPU: (12) x64 Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz
Binaries:
Node: 10.16.0 - /usr/local/bin/node
Yarn: 1.17.3 - /usr/bin/yarn
npm: 6.9.0 - /usr/local/bin/npm
npmPackages:
jest: ^24.9.0 => 24.9.0
My jest config:
"jest": {
"collectCoverageFrom": [
"packages/**/*.{js,jsx,mjs}",
"!packages/**/common/icons/components/*",
"!packages/**/*.stories.{js,jsx,ts,tsx}",
"!packages/**/**/story/**/*.{js,jsx,ts,tsx}"
],
"moduleDirectories": [
"node_modules"
],
"setupFilesAfterEnv": [
"<rootDir>/config/jest/setup.js"
],
"setupFiles": [
"<rootDir>/config/polyfills.js"
],
"testMatch": [
"<rootDir>/packages/**/?(*.)(spec|test).{js,jsx,mjs}"
],
"testEnvironment": "jsdom",
"testURL": "http://localhost",
"transform": {
"^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|mjs|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"
],
"moduleFileExtensions": [
"web.js",
"js",
"json",
"web.jsx",
"jsx",
"node",
"mjs",
"ts",
"tsx"
]