setupFilesAfterEnv is empty with --showConfig, despite being set in package.json

🐛 Bug Report

I’m running jest and my setupFilesAfterEnv is being ignored.

...
  "jest": {
    "setupFilesAfterEnv": [
      "jest-extended",
      "./jest.setup.js"
    ]
  },
...

$ NODE_ENV=test jest --showConfig
{
  "configs": [
    {
      "automock": false,
      "cache": true,
      "cacheDirectory": "/private/var/folders/lr/1wlz_4jj6h512dpg3c58rrxw0000gn/T/jest_dx",
      "clearMocks": false,
      "coveragePathIgnorePatterns": [
        "/node_modules/"
      ],
      "cwd": "/Users/vadorequest/dev/next-right-now",
      "detectLeaks": false,
      "detectOpenHandles": false,
      "errorOnDeprecated": false,
      "extraGlobals": [],
      "forceCoverageMatch": [],
      "globals": {
        "ts-jest": {
          "tsConfig": "tsconfig.jest.json"
        }
      },
      "haste": {
        "computeSha1": false,
        "throwOnModuleCollision": false
      },
      "moduleDirectories": [
        "node_modules"
      ],
      "moduleFileExtensions": [
        "js",
        "json",
        "jsx",
        "ts",
        "tsx",
        "node"
      ],
      "moduleNameMapper": [],
      "modulePathIgnorePatterns": [
        "cypress"
      ],
      "name": "a5d3558a4f13ae2e5c693ddddf111044",
      "prettierPath": "prettier",
      "resetMocks": false,
      "resetModules": false,
      "restoreMocks": false,
      "rootDir": "/Users/vadorequest/dev/next-right-now",
      "roots": [
        "/Users/vadorequest/dev/next-right-now"
      ],
      "runner": "jest-runner",
      "setupFiles": [],
      "setupFilesAfterEnv": [],
      "skipFilter": false,
      "snapshotSerializers": [],
      "testEnvironment": "/Users/vadorequest/dev/next-right-now/node_modules/jest-environment-node/build/index.js",
      "testEnvironmentOptions": {},
      "testLocationInResults": false,
      "testMatch": [
        "**/__tests__/**/*.[jt]s?(x)",
        "**/?(*.)+(spec|test).[tj]s?(x)"
      ],
      "testPathIgnorePatterns": [
        "/node_modules/"
      ],
      "testRegex": [],
      "testRunner": "/Users/vadorequest/dev/next-right-now/node_modules/jest-jasmine2/build/index.js",
      "testURL": "http://localhost",
      "timers": "real",
      "transform": [
        [
          "^.+\\.tsx?$",
          "/Users/vadorequest/dev/next-right-now/node_modules/ts-jest/dist/index.js",
          {}
        ]
      ],
      "transformIgnorePatterns": [
        "/node_modules/"
      ],
      "watchPathIgnorePatterns": []
    }
  ],
  "globalConfig": {
    "bail": 0,
    "changedFilesWithAncestor": false,
    "collectCoverage": false,
    "collectCoverageFrom": [],
    "coverageDirectory": "/Users/vadorequest/dev/next-right-now/coverage",
    "coverageProvider": "babel",
    "coverageReporters": [
      "json",
      "text",
      "lcov",
      "clover"
    ],
    "detectLeaks": false,
    "detectOpenHandles": false,
    "errorOnDeprecated": false,
    "expand": false,
    "findRelatedTests": false,
    "forceExit": false,
    "json": false,
    "lastCommit": false,
    "listTests": false,
    "logHeapUsage": false,
    "maxConcurrency": 5,
    "maxWorkers": 7,
    "noStackTrace": false,
    "nonFlagArgs": [],
    "notify": false,
    "notifyMode": "failure-change",
    "onlyChanged": false,
    "onlyFailures": false,
    "passWithNoTests": false,
    "projects": [],
    "rootDir": "/Users/vadorequest/dev/next-right-now",
    "runTestsByPath": false,
    "skipFilter": false,
    "testFailureExitCode": 1,
    "testPathPattern": "",
    "testSequencer": "/Users/vadorequest/dev/next-right-now/node_modules/@jest/test-sequencer/build/index.js",
    "updateSnapshot": "new",
    "useStderr": false,
    "watch": false,
    "watchAll": false,
    "watchman": true
  },
  "version": "26.0.1"
}

To Reproduce

It used to work, today it doesn’t and I don’t know when it broke.

Expected behavior

Should print Jest env has been enhanced - See "./jest.setup.js" from ./jest.config.js

Link to repl or repo (highly encouraged)

Commit where I noticed the bug: https://github.com/UnlyEd/next-right-now/pull/86/commits/fed97cde17e6aeb4f824a8f72ee37faa6e1f7fbe

git clone https://github.com/UnlyEd/next-right-now.git
cd next-right-now && git checkout fed97cde17e6aeb4f824a8f72ee37faa6e1f7fbe
yarn test:config

envinfo

  System:
    OS: macOS 10.15.4
    CPU: (8) x64 Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz
  Binaries:
    Node: 14.3.0 - /usr/local/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 6.14.4 - /usr/local/bin/npm
  npmPackages:
    jest: 26.0.1 => 26.0.1 

[SimenB]

Thanks @Vadorequest, I’ve opened up #10124 for this

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