chore(jest): Final Jest cleanup (#15549)

timfish · web-flow · commit c38315ea0cbb · 2025-03-26T05:39:01.000Z
resolves #11084
diff --git a/.eslintrc.js b/.eslintrc.js
@@ -38,7 +38,7 @@ module.exports = {
       },
     },
     {
-      files: ['jest/**/*.ts', 'scripts/**/*.ts'],
+      files: ['scripts/**/*.ts'],
       parserOptions: {
         project: ['tsconfig.dev.json'],
       },
diff --git a/.gitignore b/.gitignore
@@ -17,8 +17,6 @@ scratch/
 # side effects of running AWS lambda layer zip action locally
 dist-serverless/
 sentry-node-serverless-*.zip
-# transpiled transformers
-jest/transformers/*.js
 # node tarballs
 packages/*/sentry-*.tgz
 .nxcache
diff --git a/.vscode/launch.json b/.vscode/launch.json
@@ -52,35 +52,6 @@
       "internalConsoleOptions": "openOnSessionStart",
       "outputCapture": "std"
     },
-    // Run a specific test file in watch mode (must have file in currently active tab when hitting the play button).
-    // NOTE: If you try to run this and VSCode complains that the command `shellCommand.execute` can't be found, go
-    // install the recommended extension Tasks Shell Input.
-    {
-      "name": "Debug unit tests - just open file",
-      "type": "node",
-      "cwd": "${workspaceFolder}/packages/${input:getPackageName}",
-      "request": "launch",
-      "program": "${workspaceFolder}/node_modules/.bin/jest",
-      "args": [
-        "--watch",
-        // this runs one test at a time, rather than running them in parallel (necessary for debugging so that you know
-        // you're hitting a single test's breakpoints, in order)
-        "--runInBand",
-        // coverage messes up the source maps
-        "--coverage",
-        "false",
-        // remove this to run all package tests
-        "${relativeFile}"
-      ],
-      "sourceMaps": true,
-      "smartStep": true,
-      // otherwise it goes to the VSCode debug terminal, which prints the test output or console logs (depending on
-      // "outputCapture" option here; default is to show console logs), but not both
-      "console": "integratedTerminal",
-      // since we're not using it, don't automatically switch to it
-      "internalConsoleOptions": "neverOpen"
-    },
-
     // Run a specific test file in watch mode (must have file in currently active tab when hitting the play button).
     // NOTE: If you try to run this and VSCode complains that the command `shellCommand.execute` can't be found, go
     // install the recommended extension Tasks Shell Input.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -73,23 +73,6 @@ the tests in each location. Check out the `scripts` entry of the corresponding `
 
 Note: you must run `yarn build` before `yarn test` will work.
 
-## Debugging Tests
-
-If you run into trouble writing tests and need to debug one of them, you can do so using VSCode's debugger.
-
-0. If you don't already have it installed, install the Tasks Shell Input extension, which you'll find in the Extensions
-   tab in the sidebar as one of the recommended workspace extensions.
-
-1. Place breakpoints or `debugger` statements in the test or the underlying code wherever you'd like `jest` to pause.
-2. Open the file containing the test in question, and make sure its tab is active (so you can see the file's contents).
-3. Switch to the debugger in the sidebar and choose `Debug unit tests - just open file` from the dropdown.
-4. Click the green "play" button to run the tests in the open file in watch mode.
-
-Pro tip: If any of your breakpoints are in code run by multiple tests, and you run the whole test file, you'll land on
-those breakpoints over and over again, in the middle of tests you don't care about. To avoid this, replace the test's
-initial `it` or `test` with `it.only` or `test.only`. That way, when you hit a breakpoint, you'll know you got there are
-part of the buggy test.
-
 ## Debug Build Flags
 
 Throughout the codebase, you will find a `__DEBUG_BUILD__` constant. This flag serves two purposes:
diff --git a/dev-packages/node-integration-tests/.eslintrc.js b/dev-packages/node-integration-tests/.eslintrc.js
@@ -1,7 +1,6 @@
 module.exports = {
   env: {
     node: true,
-    jest: true,
   },
   extends: ['../../.eslintrc.js'],
   overrides: [
diff --git a/dev-packages/node-integration-tests/README.md b/dev-packages/node-integration-tests/README.md
@@ -23,7 +23,7 @@ folders containing test scenarios and assertions.
 `runServer` also accepts an optional `scenarioPath` argument for non-standard usage.
 
 `test.ts` is required for each test case, and contains the server runner logic, request interceptors for Sentry
-requests, and assertions. Test server, interceptors and assertions are all run on the same Jest thread.
+requests, and assertions. Test server, interceptors and assertions are all run on the same Vitest thread.
 
 ### Utilities
 
@@ -40,12 +40,10 @@ Tests can be run locally with:
 
 `yarn test`
 
-To run tests with Jest's watch mode:
+To run tests with Vitest's watch mode:
 
 `yarn test:watch`
 
 To filter tests by their title:
 
 `yarn test -t "set different properties of a scope"`
-
-You can refer to [Jest documentation](https://jestjs.io/docs/cli) for other CLI options.
diff --git a/dev-packages/node-integration-tests/tsconfig.json b/dev-packages/node-integration-tests/tsconfig.json
@@ -9,6 +9,6 @@
     "lib": ["DOM", "ES2018"],
     // package-specific options
     "esModuleInterop": true,
-    "types": ["node", "jest"]
+    "types": ["node"]
   }
 }
diff --git a/jest/jest.config.js b/jest/jest.config.js
diff --git a/package.json b/package.json
@@ -15,7 +15,7 @@
     "circularDepCheck": "lerna run circularDepCheck",
     "clean": "run-s clean:build clean:caches",
     "clean:build": "lerna run clean",
-    "clean:caches": "yarn rimraf eslintcache .nxcache .nx && yarn jest --clearCache",
+    "clean:caches": "yarn rimraf eslintcache .nxcache .nx",
     "clean:deps": "lerna clean --yes && rm -rf node_modules && yarn",
     "clean:tarballs": "rimraf {packages,dev-packages}/*/*.tgz",
     "clean:watchman": "watchman watch-del \".\"",
@@ -110,17 +110,13 @@
     "@rollup/pluginutils": "^5.1.0",
     "@size-limit/file": "~11.1.6",
     "@size-limit/webpack": "~11.1.6",
-    "@types/jest": "^27.4.1",
     "@types/jsdom": "^21.1.6",
     "@types/node": "^18.19.1",
     "@vitest/coverage-v8": "^2.1.8",
     "deepmerge": "^4.2.2",
     "downlevel-dts": "~0.11.0",
     "es-check": "^7.2.1",
     "eslint": "7.32.0",
-    "jest": "^27.5.1",
-    "jest-environment-node": "^27.5.1",
-    "jest-junit": "^16.0.0",
     "jsdom": "^21.1.2",
     "lerna": "7.1.1",
     "madge": "7.0.0",
@@ -133,7 +129,6 @@
     "rollup-plugin-license": "^3.3.1",
     "size-limit": "~11.1.6",
     "sucrase": "^3.35.0",
-    "ts-jest": "^27.1.4",
     "ts-node": "10.9.1",
     "typescript": "~5.0.0",
     "vitest": "^2.1.8",
diff --git a/packages/core/test/utils-hoist/misc.test.ts b/packages/core/test/utils-hoist/misc.test.ts
@@ -291,8 +291,6 @@ describe('checkOrSetAlreadyCaught()', () => {
 
 describe('uuid4 generation', () => {
   const uuid4Regex = /^[0-9A-F]{12}[4][0-9A-F]{3}[89AB][0-9A-F]{15}$/i;
-  // Jest messes with the global object, so there is no global crypto object in any node version
-  // For this reason we need to create our own crypto object for each test to cover all the code paths
   it('returns valid uuid v4 ids via Math.random', () => {
     for (let index = 0; index < 1_000; index++) {
       expect(uuid4()).toMatch(uuid4Regex);
diff --git a/packages/core/test/utils-hoist/normalize.test.ts b/packages/core/test/utils-hoist/normalize.test.ts
@@ -1,5 +1,5 @@
 /**
- * @jest-environment jsdom
+ * @vitest-environment jsdom
  */
 
 import { describe, expect, test, vi } from 'vitest';
diff --git a/packages/core/test/utils-hoist/object.test.ts b/packages/core/test/utils-hoist/object.test.ts
@@ -1,5 +1,5 @@
 /**
- * @jest-environment jsdom
+ * @vitest-environment jsdom
  */
 
 import type { WrappedFunction } from '../../src/types-hoist';
@@ -331,17 +331,10 @@ describe('objectify()', () => {
   });
 
   describe('wraps other primitives with their respective object wrapper classes', () => {
-    // TODO: There's currently a bug in Jest - if you give it the `Boolean` class, it runs `typeof received ===
-    // 'boolean'` but not `received instanceof Boolean` (the way it correctly does for other primitive wrappers, like
-    // `Number` and `String). (See https://github.com/facebook/jest/pull/11976.) Once that is fixed and we upgrade jest,
-    // we can comment the test below back in. (The tests for symbols and bigints are working only because our current
-    // version of jest is sufficiently old that they're not even considered in the relevant check and just fall to the
-    // default `instanceof` check jest uses for all unknown classes.)
-
     it.each([
       ['number', Number, 1121],
       ['string', String, 'Dogs are great!'],
-      // ["boolean", Boolean, true],
+      ['boolean', Boolean, true],
       ['symbol', Symbol, Symbol('Maisey')],
     ])('%s', (_caseName, wrapperClass, primitive) => {
       const objectifiedPrimitive = objectify(primitive);
diff --git a/packages/eslint-config-sdk/package.json b/packages/eslint-config-sdk/package.json
@@ -29,7 +29,6 @@
     "eslint-config-prettier": "^6.11.0",
     "eslint-plugin-deprecation": "^1.5.0",
     "eslint-plugin-import": "^2.22.0",
-    "eslint-plugin-jest": "^27.2.2",
     "eslint-plugin-jsdoc": "^30.0.3",
     "eslint-plugin-simple-import-sort": "^5.0.3"
   },
diff --git a/packages/eslint-config-sdk/src/base.js b/packages/eslint-config-sdk/src/base.js
@@ -154,10 +154,6 @@ module.exports = {
       },
     },
     {
-      // Configuration for files in test directories
-      env: {
-        jest: true,
-      },
       files: [
         'test.ts',
         '*.test.ts',
diff --git a/packages/gatsby/tsconfig.plugin.json b/packages/gatsby/tsconfig.plugin.json
@@ -5,7 +5,6 @@
 
   "compilerOptions": {
     // should include all types from `./tsconfig.json` plus types for all test frameworks used
-    // "types": ["node", "jest"]
     "declaration": true,
     "declarationMap": false,
     "emitDeclarationOnly": true,
diff --git a/packages/node/jest.config.js b/packages/node/jest.config.js
diff --git a/packages/node/test/helpers/conditional.ts b/packages/node/test/helpers/conditional.ts
@@ -7,7 +7,6 @@ const NODE_VERSION = parseSemver(process.versions.node).major;
  * Returns`describe` or `describe.skip` depending on allowed major versions of Node.
  *
  * @param {{ min?: number; max?: number }} allowedVersion
- * @return {*}  {jest.Describe}
  */
 export const conditionalTest = (allowedVersion: { min?: number; max?: number }) => {
   if (!NODE_VERSION) {
diff --git a/packages/nuxt/tsconfig.test.json b/packages/nuxt/tsconfig.test.json
@@ -5,6 +5,6 @@
 
   "compilerOptions": {
     // should include all types from `./tsconfig.json` plus types for all test frameworks used
-    "types": ["node", "vitest/globals"]
+    "types": ["node"]
   }
 }
diff --git a/packages/react-router/tsconfig.test.json b/packages/react-router/tsconfig.test.json
@@ -4,6 +4,6 @@
   "include": ["test/**/*", "vite.config.ts"],
 
   "compilerOptions": {
-    "types": ["node", "vitest/globals"],
+    "types": ["node"],
   }
 }
diff --git a/packages/remix/test/integration/tsconfig.test.json b/packages/remix/test/integration/tsconfig.test.json
@@ -4,6 +4,6 @@
   "include": ["test/**/*"],
 
   "compilerOptions": {
-    "types": ["node", "vitest/globals"]
+    "types": ["node"]
   }
 }
diff --git a/packages/solidstart/tsconfig.test.json b/packages/solidstart/tsconfig.test.json
@@ -5,7 +5,7 @@
 
   "compilerOptions": {
     // should include all types from `./tsconfig.json` plus types for all test frameworks used
-    "types": ["node", "vitest/globals", "vite/client", "@testing-library/jest-dom"],
+    "types": ["node", "@testing-library/jest-dom"],
 
     // other package-specific, test-specific options
     "jsx": "preserve",
diff --git a/tsconfig-templates/tsconfig.test.json b/tsconfig-templates/tsconfig.test.json
@@ -5,7 +5,7 @@
 
   "compilerOptions": {
     // should include all types from `./tsconfig.json` plus types for all test frameworks used
-    "types": ["jest"]
+    "types": []
 
     // other package-specific, test-specific options
   }
diff --git a/tsconfig.dev.json b/tsconfig.dev.json
@@ -2,9 +2,9 @@
 {
   "extends": "./tsconfig.json",
 
-  "include": ["**/scripts/**/*.ts", "jest/**/*.ts", "vite/**/*.ts"],
+  "include": ["**/scripts/**/*.ts", "vite/**/*.ts"],
 
   "compilerOptions": {
-    "types": ["node", "jest", "vitest/globals"]
+    "types": ["node"]
   }
 }
diff --git a/yarn.lock b/yarn.lock

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ module.exports = {`
`38`	`38`	`},`
`39`	`39`	`},`
`40`	`40`	`{`
`41`		`- files: ['jest/*/.ts', 'scripts/*/.ts'],`
	`41`	`+ files: ['scripts/*/.ts'],`
`42`	`42`	`parserOptions: {`
`43`	`43`	`project: ['tsconfig.dev.json'],`
`44`	`44`	`},`
Original file line number	Diff line number	Diff line change
`@@ -9,6 +9,6 @@`
`9`	`9`	`"lib": ["DOM", "ES2018"],`
`10`	`10`	`// package-specific options`
`11`	`11`	`"esModuleInterop": true,`
`12`		`- "types": ["node", "jest"]`
	`12`	`+ "types": ["node"]`
`13`	`13`	`}`
`14`	`14`	`}`