test: run social-ai packages on Vitest (#10954)

## Explanation

Moves `@metamask/ai-controllers` and `@metamask/social-controllers` to
Vitest.

## References

- https://consensyssoftware.atlassian.net/browse/WPC-1478

## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [x] 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)
  * Not applicable, test only change. Carries the `no-changelog` label.
- [ ] 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
  * None.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Test-only tooling swap with no production code changes; behavior
should match prior Jest suites aside from the runner.
> 
> **Overview**
> **Migrates `@metamask/ai-controllers` and
`@metamask/social-controllers` from Jest to Vitest**, aligning them with
the repo’s default test runner for new packages.
> 
> For each package, **Jest config and devDependencies are removed** and
replaced with **`vitest.config.ts`** (merged from the shared package
base, keeping **100% global coverage thresholds**). **`package.json`
test scripts** now invoke `vitest` instead of
`NODE_OPTIONS=--experimental-vm-modules jest`. **Test sources** import
`describe` / `expect` / `it` / `vi` from Vitest and use **`vi.fn()`**
(and Vitest **`Mock`** types) instead of Jest globals. **`tsconfig.json`
no longer includes Jest types.**
> 
> **`test-runner-package-map.cjs`** drops both packages from
**`PACKAGES_ON_JEST`**. **`oxlint-suppressions.json`** is updated for
the removed Jest configs and adds suppressions for
**`vitest/no-conditional-in-test`** on `SocialRealtimeService.test.ts`.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
791bb75. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: cryptodev-2s

oxlint-suppressions.json

@@ -448,11 +448,6 @@
       "count": 5
     }
   },
-  "packages/ai-controllers/jest.config.cjs": {
-    "import/unambiguous": {
-      "count": 1
-    }
-  },
   "packages/analytics-controller/jest.config.cjs": {
     "import/unambiguous": {
       "count": 1
@@ -5007,14 +5002,9 @@
       "count": 1
     }
   },
-  "packages/social-controllers/jest.config.cjs": {
-    "import/unambiguous": {
-      "count": 1
-    }
-  },
-  "packages/social-controllers/src/SocialService.test.ts": {
-    "typescript/no-unsafe-member-access": {
-      "count": 8
+  "packages/social-controllers/src/SocialRealtimeService.test.ts": {
+    "vitest/no-conditional-in-test": {
+      "count": 54
     }
   },
   "packages/solana-test-validator-up/jest.config.cjs": {

packages/ai-controllers/jest.config.cjs

@@ -44,10 +44,10 @@
     "messenger-action-types:check": "node --import ../../scripts/resolver/register.ts --experimental-transform-types ../../packages/messenger-cli/src/cli.ts --formatter oxfmt --esm --check",
     "messenger-action-types:generate": "node --import ../../scripts/resolver/register.ts --experimental-transform-types ../../packages/messenger-cli/src/cli.ts --formatter oxfmt --esm --generate",
     "since-latest-release": "../../scripts/since-latest-release.sh",
-    "test": "NODE_OPTIONS=--experimental-vm-modules jest --reporters=jest-silent-reporter",
-    "test:clean": "NODE_OPTIONS=--experimental-vm-modules jest --clearCache",
-    "test:verbose": "NODE_OPTIONS=--experimental-vm-modules jest --verbose",
-    "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
+    "test": "vitest",
+    "test:clean": "vitest --clearCache",
+    "test:verbose": "vitest --reporter=verbose",
+    "test:watch": "vitest --watch"
   },
   "dependencies": {
     "@metamask/base-controller": "^10.1.0",
@@ -56,15 +56,12 @@
   },
   "devDependencies": {
     "@metamask/auto-changelog": "^6.2.1",
-    "@types/jest": "^30.0.0",
     "@typescript/native": "npm:typescript@^7.0.2",
-    "deepmerge": "^4.3.1",
-    "jest": "^30.5.2",
     "rimraf": "^6.1.3",
-    "ts-jest": "^29.4.14",
     "typedoc": "^0.28.20",
     "typedoc-plugin-missing-exports": "^4.1.4",
-    "typescript": "npm:@typescript/typescript6@^6.0.2"
+    "typescript": "npm:@typescript/typescript6@^6.0.2",
+    "vitest": "^5.0.0"
   },
   "engines": {
     "node": "^22.14.0 || ^24"

packages/ai-controllers/package.json

@@ -1,4 +1,5 @@
 import { Messenger } from '@metamask/messenger';
+import { describe, expect, it, vi } from 'vitest';
 
 import {
   AiDigestController,
@@ -51,9 +52,9 @@ const createMessenger = (): AiDigestControllerMessenger =>
   });
 
 const createService = (overrides?: Partial<DigestService>): DigestService => ({
-  searchDigest: jest.fn().mockResolvedValue(mockReport),
-  fetchMarketOverview: jest.fn().mockResolvedValue(mockOverview),
-  fetchFrontPageItem: jest.fn().mockResolvedValue(mockFrontPage),
+  searchDigest: vi.fn().mockResolvedValue(mockReport),
+  fetchMarketOverview: vi.fn().mockResolvedValue(mockOverview),
+  fetchFrontPageItem: vi.fn().mockResolvedValue(mockFrontPage),
   ...overrides,
 });
 
@@ -135,7 +136,7 @@ describe('AiDigestController (market insights)', () => {
 
   it('returns null when the service returns null', async () => {
     const digestService = createService({
-      searchDigest: jest.fn().mockResolvedValue(null),
+      searchDigest: vi.fn().mockResolvedValue(null),
     });
     const controller = new AiDigestController({
       messenger: createMessenger(),
@@ -177,7 +178,7 @@ describe('AiDigestController (market overview)', () => {
 
   it('returns null when the service returns null', async () => {
     const digestService = createService({
-      fetchMarketOverview: jest.fn().mockResolvedValue(null),
+      fetchMarketOverview: vi.fn().mockResolvedValue(null),
     });
     const controller = new AiDigestController({
       messenger: createMessenger(),
@@ -222,7 +223,7 @@ describe('AiDigestController (front page)', () => {
 
   it('returns null when the service returns null', async () => {
     const digestService = createService({
-      fetchFrontPageItem: jest.fn().mockResolvedValue(null),
+      fetchFrontPageItem: vi.fn().mockResolvedValue(null),
     });
     const controller = new AiDigestController({
       messenger: createMessenger(),

packages/ai-controllers/src/AiDigestController.test.ts

@@ -1,8 +1,10 @@
+import { afterAll, beforeEach, describe, expect, it, vi } from 'vitest';
+
 import { AiDigestControllerErrorMessage } from './ai-digest-constants.js';
 import { AiDigestService } from './index.js';
 
 describe('AiDigestService', () => {
-  const mockFetch = jest.fn();
+  const mockFetch = vi.fn();
   const originalFetch = global.fetch;
 
   beforeEach(() => {

packages/ai-controllers/src/AiDigestService.test.ts

@@ -1,8 +1,5 @@
 {
   "extends": "../../tsconfig.packages.json",
-  "compilerOptions": {
-    "types": ["jest"]
-  },
   "references": [
     {
       "path": "../base-controller"

packages/ai-controllers/tsconfig.json

@@ -0,0 +1,23 @@
+import { basename, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { defineConfig, mergeConfig } from 'vitest/config';
+
+import baseConfig from '../../vitest.config.packages.js';
+
+export default mergeConfig(
+  baseConfig,
+  defineConfig({
+    test: {
+      name: basename(dirname(fileURLToPath(import.meta.url))),
+
+      coverage: {
+        thresholds: {
+          branches: 100,
+          functions: 100,
+          lines: 100,
+          statements: 100,
+        },
+      },
+    },
+  }),
+);

packages/ai-controllers/vitest.config.ts

@@ -44,10 +44,10 @@
     "messenger-action-types:check": "node --import ../../scripts/resolver/register.ts --experimental-transform-types ../../packages/messenger-cli/src/cli.ts --formatter oxfmt --esm --check",
     "messenger-action-types:generate": "node --import ../../scripts/resolver/register.ts --experimental-transform-types ../../packages/messenger-cli/src/cli.ts --formatter oxfmt --esm --generate",
     "since-latest-release": "../../scripts/since-latest-release.sh",
-    "test": "NODE_OPTIONS=--experimental-vm-modules jest --reporters=jest-silent-reporter",
-    "test:clean": "NODE_OPTIONS=--experimental-vm-modules jest --clearCache",
-    "test:verbose": "NODE_OPTIONS=--experimental-vm-modules jest --verbose",
-    "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
+    "test": "vitest",
+    "test:clean": "vitest --clearCache",
+    "test:verbose": "vitest --reporter=verbose",
+    "test:watch": "vitest --watch"
   },
   "dependencies": {
     "@metamask/base-controller": "^10.1.0",
@@ -60,15 +60,12 @@
   },
   "devDependencies": {
     "@metamask/auto-changelog": "^6.2.1",
-    "@types/jest": "^30.0.0",
     "@typescript/native": "npm:typescript@^7.0.2",
-    "deepmerge": "^4.3.1",
-    "jest": "^30.5.2",
     "rimraf": "^6.1.3",
-    "ts-jest": "^29.4.14",
     "typedoc": "^0.28.20",
     "typedoc-plugin-missing-exports": "^4.1.4",
-    "typescript": "npm:@typescript/typescript6@^6.0.2"
+    "typescript": "npm:@typescript/typescript6@^6.0.2",
+    "vitest": "^5.0.0"
   },
   "engines": {
     "node": "^22.14.0 || ^24"