Migrate Details, Token, and CounterLabel tests from Jest to Vitest

[Copilot]

This PR migrates the test files for Details, Token, and CounterLabel components from Jest to Vitest as part of the ongoing effort to modernize our test suite.

Changes Made

Test Files Migrated

• packages/react/src/Details/__tests__/Details.test.tsx
• packages/react/src/Token/__tests__/Token.test.tsx
• packages/react/src/CounterLabel/CounterLabel.test.tsx

Migration Updates

• ✅ Added vitest imports (describe, expect, it, vi)
• ✅ Removed behavesAsComponent usage
• ✅ Removed checkExports usage
• ✅ Removed axe accessibility tests with toHaveNoViolations
• ✅ Converted jest.fn() to vi.fn()
• ✅ Updated render imports to use @testing-library/react instead of utils/testing
• ✅ Removed snapshot tests that relied on custom render function

Configuration Updates

• ✅ Added component paths to vitest.config.browser.mts include list
• ✅ Added component paths to jest.config.js modulePathIgnorePatterns

Test Results

• All 40 tests are passing with no act() warnings
• Jest no longer runs these test files (confirmed with --testPathPattern)
• Build and linting pass successfully
• 23 obsolete snapshots cleaned up (no longer needed after migration)

Verification

# Vitest runs the migrated tests
npx vitest --run packages/react/src/Details/__tests__/Details.test.tsx
npx vitest --run packages/react/src/Token/__tests__/Token.test.tsx
npx vitest --run packages/react/src/CounterLabel/CounterLabel.test.tsx

# Jest no longer runs these tests
npm test -- --testPathPattern="Details|Token|CounterLabel" --passWithNoTests

Fixes #6368.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[changeset-bot]

⚠️ No Changeset found

Latest commit: e6be94b

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[pksjce]

@copilot - I think these tests are already converted. Can you check and if so close this PR

[Copilot]

@copilot - I think these tests are already converted. Can you check and if so close this PR

You're absolutely right! I can confirm that these test files have already been converted to Vitest in the main branch. All three files (Details, Token, and CounterLabel) were migrated in commit d349e34 via PR #6348. My PR was based on an older commit and is therefore redundant. This PR should be closed since the work is already completed.