chore: migrate Jest from v27 to v29 (#7894)

## Explanation

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## References

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## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/processes/updating-changelogs.md)
- [ ] I've introduced [breaking
changes](https://github.com/MetaMask/core/tree/main/docs/processes/breaking-changes.md)
in this PR and have prepared draft pull requests for clients and
consumer packages to resolve them

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Moderate risk because it upgrades core test runner dependencies and
changes transforms/environments, which can cause widespread CI failures
or subtle test behavior differences despite being mostly config/snapshot
churn.
> 
> **Overview**
> Upgrades the monorepo’s test tooling from **Jest v27 to v29** (and
aligns `@types/jest`, `ts-jest`, and `jest-environment-jsdom` versions
across packages), removing now-unneeded Babel test plumbing (drops
`babel.config.js` and `babel-jest`).
> 
> Updates Jest configuration to run TypeScript tests via **`ts-jest`**
(including scripts) and adds targeted `moduleNameMapper` fixes like
resolving `uuid` explicitly; also updates the custom JSDOM environment
to use the v29 `TestEnvironment` export.
> 
> Regenerates/updates numerous inline snapshots and `.snap` files to
match Jest v29’s snapshot formatting output changes.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
9082f5a. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Mark Stacey <markjstacey@gmail.com>

Author: cryptodev-2s

.depcheckrc.yml

@@ -18,12 +18,14 @@ ignores:
   - 'typedoc'
   # Ignore plugins for tools
   - '@typescript-eslint/*'
-  - 'babel-jest'
   - 'eslint-config-*'
   - 'eslint-plugin-*'
   - 'jest-silent-reporter'
   - 'prettier-plugin-packagejson'
   - 'typescript-eslint'
+  # Jest environment referenced in `jest.config.scripts.js`
+  - 'jest-environment-node'
+  - 'jest-environment-jsdom'
   # Ignore dependencies imported implicitly by tools
   - 'eslint-import-resolver-typescript'
   # Ignore dependencies which plug into the NPM lifecycle

babel.config.js

@@ -89,6 +89,7 @@ module.exports = {
       // so in that case use their published versions
       '<rootDir>/../../node_modules/@metamask/$1',
     ],
+    '^uuid$': require.resolve('uuid'),
   },
 
   // An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
@@ -188,9 +189,6 @@ module.exports = {
   // This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
   // testURL: "http://localhost",
 
-  // Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
-  // timers: "real",
-
   // A map from regular expressions to paths to transformers
   // transform: undefined,
 

jest.config.packages.js

@@ -1,11 +1,6 @@
 /*
  * For a detailed explanation regarding each configuration property and type check, visit:
  * https://jestjs.io/docs/configuration
- *
- * NOTE:
- * This config uses `babel-jest` due to ESM- / TypeScript-related incompatibilities with our
- * current version (`^27`) of `jest` and `ts-jest`. We can switch to `ts-jest` once we have
- * migrated our Jest dependencies to version `>=29`.
  */
 
 module.exports = {
@@ -38,17 +33,11 @@ module.exports = {
     },
   },
 
-  // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
-  // This ensures that Babel can resolve subpath exports correctly.
   moduleNameMapper: {
-    '^@metamask/utils/(.+)$': [
-      '<rootDir>/node_modules/@metamask/utils/dist/$1.cjs',
-    ],
+    '^uuid$': require.resolve('uuid'),
   },
 
-  // Disabled due to use of 'transform' below.
-  // // A preset that is used as a base for Jest's configuration
-  // preset: 'ts-jest',
+  preset: 'ts-jest',
 
   // The path to the Prettier executable used to format snapshots
   // Jest doesn't support Prettier 3 yet, so we use Prettier 2
@@ -84,9 +73,4 @@ module.exports = {
 
   // Default timeout of a test in milliseconds.
   testTimeout: 5000,
-
-  // A map from regular expressions to paths to transformers
-  transform: {
-    '\\.[jt]sx?$': 'babel-jest',
-  },
 };

jest.config.scripts.js

@@ -50,9 +50,6 @@
     "ws@7.4.6": "^7.5.10"
   },
   "devDependencies": {
-    "@babel/core": "^7.23.5",
-    "@babel/plugin-transform-modules-commonjs": "^7.23.3",
-    "@babel/preset-typescript": "^7.23.3",
     "@lavamoat/allow-scripts": "^3.0.4",
     "@lavamoat/preinstall-always-fail": "^2.1.0",
     "@metamask/create-release-branch": "^4.1.4",
@@ -66,14 +63,13 @@
     "@metamask/network-controller": "^29.0.0",
     "@metamask/utils": "^11.9.0",
     "@ts-bridge/cli": "^0.6.4",
-    "@types/jest": "^27.5.2",
+    "@types/jest": "^29.5.14",
     "@types/lodash": "^4.14.191",
     "@types/node": "^16.18.54",
     "@types/semver": "^7",
     "@typescript-eslint/eslint-plugin": "^8.48.0",
     "@typescript-eslint/parser": "^8.48.0",
     "@yarnpkg/types": "^4.0.0",
-    "babel-jest": "^29.7.0",
     "comment-json": "^4.5.1",
     "depcheck": "^1.4.7",
     "eslint": "^9.39.1",
@@ -87,7 +83,7 @@
     "eslint-plugin-promise": "^7.1.0",
     "execa": "^5.0.0",
     "isomorphic-fetch": "^3.0.0",
-    "jest": "^27.5.1",
+    "jest": "^29.7.0",
     "jest-silent-reporter": "^0.5.0",
     "lodash": "^4.17.21",
     "nock": "^13.3.1",
@@ -100,6 +96,7 @@
     "tsx": "^4.20.5",
     "typescript": "~5.3.3",
     "typescript-eslint": "^8.48.0",
+    "uuid": "^8.3.2",
     "yargs": "^17.7.2"
   },
   "packageManager": "yarn@4.10.3",

package.json

@@ -68,10 +68,10 @@
     "@metamask/keyring-api": "^21.5.0",
     "@metamask/providers": "^22.1.0",
     "@ts-bridge/cli": "^0.6.4",
-    "@types/jest": "^27.5.2",
+    "@types/jest": "^29.5.14",
     "deepmerge": "^4.2.2",
-    "jest": "^27.5.1",
-    "ts-jest": "^27.1.5",
+    "jest": "^29.7.0",
+    "ts-jest": "^29.2.5",
     "typedoc": "^0.24.8",
     "typedoc-plugin-missing-exports": "^2.0.0",
     "typescript": "~5.3.3",

packages/account-tree-controller/package.json

@@ -4359,7 +4359,7 @@ describe('AccountTreeController', () => {
           controller.metadata,
           'includeInDebugSnapshot',
         ),
-      ).toMatchInlineSnapshot(`Object {}`);
+      ).toMatchInlineSnapshot(`{}`);
     });
 
     it('includes expected state in state logs', () => {
@@ -4372,13 +4372,13 @@ describe('AccountTreeController', () => {
           'includeInStateLogs',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "accountGroupsMetadata": Object {},
-          "accountTree": Object {
+        {
+          "accountGroupsMetadata": {},
+          "accountTree": {
             "selectedAccountGroup": "",
-            "wallets": Object {},
+            "wallets": {},
           },
-          "accountWalletsMetadata": Object {},
+          "accountWalletsMetadata": {},
           "hasAccountTreeSyncingSyncedAtLeastOnce": false,
         }
       `);
@@ -4394,9 +4394,9 @@ describe('AccountTreeController', () => {
           'persist',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "accountGroupsMetadata": Object {},
-          "accountWalletsMetadata": Object {},
+        {
+          "accountGroupsMetadata": {},
+          "accountWalletsMetadata": {},
           "hasAccountTreeSyncingSyncedAtLeastOnce": false,
         }
       `);
@@ -4412,13 +4412,13 @@ describe('AccountTreeController', () => {
           'usedInUi',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "accountGroupsMetadata": Object {},
-          "accountTree": Object {
+        {
+          "accountGroupsMetadata": {},
+          "accountTree": {
             "selectedAccountGroup": "",
-            "wallets": Object {},
+            "wallets": {},
           },
-          "accountWalletsMetadata": Object {},
+          "accountWalletsMetadata": {},
           "hasAccountTreeSyncingSyncedAtLeastOnce": false,
           "isAccountTreeSyncingInProgress": false,
         }

packages/account-tree-controller/src/AccountTreeController.test.ts

@@ -73,10 +73,10 @@
     "@metamask/controller-utils": "^11.18.0",
     "@metamask/providers": "^22.1.0",
     "@ts-bridge/cli": "^0.6.4",
-    "@types/jest": "^27.5.2",
+    "@types/jest": "^29.5.14",
     "@types/readable-stream": "^2.3.0",
-    "jest": "^27.5.1",
-    "ts-jest": "^27.1.5",
+    "jest": "^29.7.0",
+    "ts-jest": "^29.2.5",
     "typedoc": "^0.24.8",
     "typedoc-plugin-missing-exports": "^2.0.0",
     "typescript": "~5.3.3",

packages/accounts-controller/package.json

@@ -3901,7 +3901,7 @@ describe('AccountsController', () => {
           controller.metadata,
           'includeInDebugSnapshot',
         ),
-      ).toMatchInlineSnapshot(`Object {}`);
+      ).toMatchInlineSnapshot(`{}`);
     });
 
     it('includes expected state in state logs', () => {
@@ -3914,9 +3914,9 @@ describe('AccountsController', () => {
           'includeInStateLogs',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "internalAccounts": Object {
-            "accounts": Object {},
+        {
+          "internalAccounts": {
+            "accounts": {},
             "selectedAccount": "",
           },
         }
@@ -3933,9 +3933,9 @@ describe('AccountsController', () => {
           'persist',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "internalAccounts": Object {
-            "accounts": Object {},
+        {
+          "internalAccounts": {
+            "accounts": {},
             "selectedAccount": "",
           },
         }
@@ -3952,9 +3952,9 @@ describe('AccountsController', () => {
           'usedInUi',
         ),
       ).toMatchInlineSnapshot(`
-        Object {
-          "internalAccounts": Object {
-            "accounts": Object {},
+        {
+          "internalAccounts": {
+            "accounts": {},
             "selectedAccount": "",
           },
         }

packages/accounts-controller/src/AccountsController.test.ts

@@ -56,10 +56,10 @@
   "devDependencies": {
     "@metamask/auto-changelog": "^3.4.4",
     "@ts-bridge/cli": "^0.6.4",
-    "@types/jest": "^27.5.2",
+    "@types/jest": "^29.5.14",
     "deepmerge": "^4.2.2",
-    "jest": "^27.5.1",
-    "ts-jest": "^27.1.5",
+    "jest": "^29.7.0",
+    "ts-jest": "^29.2.5",
     "typedoc": "^0.24.8",
     "typedoc-plugin-missing-exports": "^2.0.0",
     "typescript": "~5.3.3"