feat(test): upgrade to Vitest v5 with migration support

.github/actions/clone/action.yml

@@ -47,6 +47,12 @@ runs:
         ref: ${{ steps.upstream-versions.outputs.ROLLDOWN_VITE_HASH }}
         persist-credentials: false
 
+    # Match the manifests used by sync-remote when it generated the root lockfile.
+    # setup-node installs with --frozen-lockfile, so this must run before it.
+    - name: Align vendored Vitest dependencies
+      shell: bash
+      run: node packages/tools/src/vendored-vitest.mjs
+
     # Disable autocrlf to preserve LF line endings on Windows
     # This prevents prettier/eslint from failing with "Delete ␍" errors
     - name: Configure git for LF line endings

.github/scripts/__tests__/upgrade-deps-utils.spec.ts

@@ -16,3 +16,9 @@ test('selects the highest stable version from the supported major', () => {
 test('returns undefined when the supported major has no stable release', () => {
   expect(findLatestStableVersionForMajor(['4.2.0-beta.1', '5.0.0'], 4)).toBeUndefined();
 });
+
+test('keeps Vitest upgrades on v5 after the migration', () => {
+  expect(
+    findLatestStableVersionForMajor(['4.1.11', '5.0.0', '5.1.0', '5.2.0-beta.1', '6.0.0'], 5),
+  ).toBe('5.1.0');
+});

.github/scripts/upgrade-deps.ts

@@ -72,7 +72,7 @@ type PnpmWorkspaceEntry = {
 const STABLE_SEMVER_TAG_RE = /^v?\d+\.\d+\.\d+$/;
 // Vitest major upgrades can change the bundled API, export shims, and CLI
 // behavior. Advance this only after Vite+ has adapted to the new major.
-const SUPPORTED_VITEST_MAJOR = 4;
+const SUPPORTED_VITEST_MAJOR = 5;
 
 const isFullSha = (s: string): boolean => /^[0-9a-f]{40}$/.test(s);
 
@@ -211,18 +211,15 @@ async function updatePnpmWorkspace(versions: PnpmWorkspaceVersions): Promise<voi
   let content = fs.readFileSync(filePath, 'utf8');
 
   // oxlint's trailing \n in the pattern disambiguates from oxlint-tsgolint.
-  // All @vitest/* catalog entries (browser + core direct deps) must stay pinned
+  // Official @vitest/* catalog entries (browser + core direct deps) stay pinned
   // to the same exact version as `vitest` itself, otherwise the catalog drifts
   // from VITEST_VERSION.
   const vitestExactVersionPackages = [
     '@vitest/browser',
     '@vitest/browser-playwright',
     '@vitest/browser-preview',
-    '@vitest/browser-webdriverio',
-    '@vitest/expect',
     '@vitest/mocker',
     '@vitest/pretty-format',
-    '@vitest/runner',
     '@vitest/snapshot',
     '@vitest/spy',
     '@vitest/utils',

.github/workflows/ci.yml

@@ -389,10 +389,13 @@ jobs:
         include:
           - os: namespace-profile-linux-x64-default
             target: x86_64-unknown-linux-gnu
+            test-node: 22.18.0
           - os: namespace-profile-mac-default
             target: aarch64-apple-darwin
+            test-node: 24.11.0
           - os: namespace-profile-windows-4c-8g
             target: x86_64-pc-windows-msvc
+            test-node: 26.0.0
     runs-on: ${{ matrix.os }}
     steps:
       - uses: taiki-e/checkout-action@7d1e50e93dc4fb3bba58f85018fadf77898aee8b # v1.4.2
@@ -467,10 +470,22 @@ jobs:
         run: vp check
 
       - name: Run unit tests
-        run: RUST_BACKTRACE=1 pnpm test:unit
+        run: vp env exec --node ${{ matrix.test-node }} node packages/cli/dist/bin.js test run
         env:
+          RUST_BACKTRACE: '1'
           RUST_MIN_STACK: 8388608
 
+      - name: Test vendored workspaces with Vitest v5
+        if: runner.os == 'Linux'
+        run: |
+          pnpm --filter vite build-bundle
+          pnpm --filter create-vite build
+          pnpm --filter @rolldown/test-dev-server build
+          pnpm exec playwright install --with-deps chromium
+          pnpm test:vendored
+        env:
+          PLAYWRIGHT_BROWSERS_PATH: '0'
+
       - name: Test global package install (powershell)
         if: ${{ matrix.os != 'namespace-profile-linux-x64-default' }}
         shell: pwsh

.github/workflows/upgrade-deps.yml

@@ -97,8 +97,9 @@ jobs:
 
             ### Background
             - Upgrade script: `./.github/scripts/upgrade-deps.ts`
-            - Vitest is intentionally capped at the latest stable `4.x` release until
-              Vite+ adapts to a newer major. Do not remove or bypass that cap.
+            - Vitest is capped at the latest stable `5.x` release. Keep the exact
+              version selected by the upgrade script when merging upstream catalogs.
+              Official Vitest packages must use that version. Do not bypass the cap.
             - Sync-remote tool: `pnpm tool sync-remote` (source in
               `packages/tools/src/sync-remote-deps.ts`) — clones rolldown/vite into the
               working tree, merges their pnpm-workspace catalogs into the root
@@ -119,7 +120,7 @@ jobs:
                cross-major semver conflict in the merged catalog, e.g.
                `Incompatible semver ranges for <pkg>: ^X vs ^Y`. The merger refuses to
                auto-resolve cross-major conflicts for packages outside its synced list
-               (oxc-*, vitest deps). For passthrough deps that vp does NOT import
+               (oxc-* and tinybench). For passthrough deps that vp does NOT import
                directly (e.g. `diff`, `acorn`, `astring`, anything only present in
                `rolldown/scripts/package.json` or vite's internals), bump vp's
                `pnpm-workspace.yaml` catalog entry to match the rolldown/vite version,

.typos.toml

@@ -1,3 +1,7 @@
+[default]
+# Vitest v4 used this misspelled directory; the migrator must recognize it.
+extend-ignore-re = ['\.vitest-attachements\b']
+
 [default.extend-words]
 ratatui = "ratatui"
 PUNICODE = "PUNICODE"

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_add_yarn4/snapshots/command_add_yarn4.md

@@ -49,7 +49,7 @@ should add package as dev dependencies
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -80,7 +80,7 @@ warn: yarn does not support --allow-build.
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -113,7 +113,7 @@ VITE+ - The Unified Toolchain for the Web
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -149,7 +149,7 @@ should add package as optional dependencies
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -186,7 +186,7 @@ support pass through arguments
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_add_yarn4_with_workspace/snapshots/command_add_yarn4_with_workspace.md

@@ -14,7 +14,7 @@ should add package to workspace root
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/utils/package.json`
@@ -54,7 +54,7 @@ warn: yarn does not support --workspace.
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/utils/package.json`
@@ -99,10 +99,10 @@ should add packages to packages/app
 [app]: ➤ YN0000: └ Completed
 [app]: ➤ YN0000: ┌ Link step
 [app]: ➤ YN0000: └ Completed
-[app]: ➤ YN0000: · Done in <duration> <duration>
-[app]: Process exited (exit code 0), completed in <duration> <duration>
+[app]: ➤ YN0000: · Done in <duration>
+[app]: Process exited (exit code 0), completed in <duration>
 
-Done in <duration> <duration>
+Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/utils/package.json`
@@ -150,10 +150,10 @@ warn: yarn does not support --workspace.
 [app]: ➤ YN0000: └ Completed
 [app]: ➤ YN0000: ┌ Link step
 [app]: ➤ YN0000: └ Completed
-[app]: ➤ YN0000: · Done in <duration> <duration>
-[app]: Process exited (exit code 0), completed in <duration> <duration>
+[app]: ➤ YN0000: · Done in <duration>
+[app]: Process exited (exit code 0), completed in <duration>
 
-Done in <duration> <duration>
+Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/utils/package.json`
@@ -201,8 +201,8 @@ should add testnpm2 test-vite-plus-install to all packages and workspace root
 [command-add-yarn4-with-workspace]: ➤ YN0000: └ Completed
 [command-add-yarn4-with-workspace]: ➤ YN0000: ┌ Link step
 [command-add-yarn4-with-workspace]: ➤ YN0000: └ Completed
-[command-add-yarn4-with-workspace]: ➤ YN0000: · Done in <duration> <duration>
-[command-add-yarn4-with-workspace]: Process exited (exit code 0), completed in <duration> <duration>
+[command-add-yarn4-with-workspace]: ➤ YN0000: · Done in <duration>
+[command-add-yarn4-with-workspace]: Process exited (exit code 0), completed in <duration>
 
 [admin]: Process started
 [admin]: ➤ YN0000: · Yarn <version>
@@ -212,8 +212,8 @@ should add testnpm2 test-vite-plus-install to all packages and workspace root
 [admin]: ➤ YN0000: └ Completed
 [admin]: ➤ YN0000: ┌ Link step
 [admin]: ➤ YN0000: └ Completed
-[admin]: ➤ YN0000: · Done in <duration> <duration>
-[admin]: Process exited (exit code 0), completed in <duration> <duration>
+[admin]: ➤ YN0000: · Done in <duration>
+[admin]: Process exited (exit code 0), completed in <duration>
 
 [app]: Process started
 [app]: ➤ YN0000: · Yarn <version>
@@ -223,8 +223,8 @@ should add testnpm2 test-vite-plus-install to all packages and workspace root
 [app]: ➤ YN0000: └ Completed
 [app]: ➤ YN0000: ┌ Link step
 [app]: ➤ YN0000: └ Completed
-[app]: ➤ YN0000: · Done in <duration> <duration>
-[app]: Process exited (exit code 0), completed in <duration> <duration>
+[app]: ➤ YN0000: · Done in <duration>
+[app]: Process exited (exit code 0), completed in <duration>
 
 [@vite-plus-test/utils]: Process started
 [@vite-plus-test/utils]: ➤ YN0000: · Yarn <version>
@@ -234,10 +234,10 @@ should add testnpm2 test-vite-plus-install to all packages and workspace root
 [@vite-plus-test/utils]: ➤ YN0000: └ Completed
 [@vite-plus-test/utils]: ➤ YN0000: ┌ Link step
 [@vite-plus-test/utils]: ➤ YN0000: └ Completed
-[@vite-plus-test/utils]: ➤ YN0000: · Done in <duration> <duration>
-[@vite-plus-test/utils]: Process exited (exit code 0), completed in <duration> <duration>
+[@vite-plus-test/utils]: ➤ YN0000: · Done in <duration>
+[@vite-plus-test/utils]: Process exited (exit code 0), completed in <duration>
 
-Done in <duration> <duration>
+Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/admin/package.json packages/utils/package.json`
@@ -301,8 +301,8 @@ VITE+ - The Unified Toolchain for the Web
 [command-add-yarn4-with-workspace]: ➤ YN0000: └ Completed
 [command-add-yarn4-with-workspace]: ➤ YN0000: ┌ Link step
 [command-add-yarn4-with-workspace]: ➤ YN0000: └ Completed
-[command-add-yarn4-with-workspace]: ➤ YN0000: · Done in <duration> <duration>
-[command-add-yarn4-with-workspace]: Process exited (exit code 0), completed in <duration> <duration>
+[command-add-yarn4-with-workspace]: ➤ YN0000: · Done in <duration>
+[command-add-yarn4-with-workspace]: Process exited (exit code 0), completed in <duration>
 
 [admin]: Process started
 [admin]: ➤ YN0000: · Yarn <version>
@@ -312,8 +312,8 @@ VITE+ - The Unified Toolchain for the Web
 [admin]: ➤ YN0000: └ Completed
 [admin]: ➤ YN0000: ┌ Link step
 [admin]: ➤ YN0000: └ Completed
-[admin]: ➤ YN0000: · Done in <duration> <duration>
-[admin]: Process exited (exit code 0), completed in <duration> <duration>
+[admin]: ➤ YN0000: · Done in <duration>
+[admin]: Process exited (exit code 0), completed in <duration>
 
 [app]: Process started
 [app]: ➤ YN0000: · Yarn <version>
@@ -323,10 +323,10 @@ VITE+ - The Unified Toolchain for the Web
 [app]: ➤ YN0000: └ Completed
 [app]: ➤ YN0000: ┌ Link step
 [app]: ➤ YN0000: └ Completed
-[app]: ➤ YN0000: · Done in <duration> <duration>
-[app]: Process exited (exit code 0), completed in <duration> <duration>
+[app]: ➤ YN0000: · Done in <duration>
+[app]: Process exited (exit code 0), completed in <duration>
 
-Done in <duration> <duration>
+Done in <duration>
 ```
 
 ## `vpt print-file package.json packages/app/package.json packages/admin/package.json packages/utils/package.json`

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_dedupe_yarn4/snapshots/command_dedupe_yarn4.md

@@ -17,7 +17,7 @@ should dedupe dependencies
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_link_yarn4/snapshots/command_link_yarn4.md

@@ -25,7 +25,7 @@ should link local directory
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -53,7 +53,7 @@ should work with ln alias
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`
@@ -81,7 +81,7 @@ cleanup temp states
 ➤ YN0000: └ Completed
 ➤ YN0000: ┌ Link step
 ➤ YN0000: └ Completed
-➤ YN0000: · Done in <duration> <duration>
+➤ YN0000: · Done in <duration>
 ```
 
 ## `vpt print-file package.json`

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/command_pack_yarn4/snapshots/command_pack_yarn4.md

@@ -7,7 +7,7 @@ should pack current package
 ```
 ➤ YN0000: package.json
 ➤ YN0000: Package archive generated in <workspace>/package.tgz
-➤ YN0000: Done in <duration> <duration>
+➤ YN0000: Done in <duration>
 ```
 
 ## `vp pm pack --out ./dist/package.tgz`
@@ -17,7 +17,7 @@ should pack with output file
 ```
 ➤ YN0000: package.json
 ➤ YN0000: Package archive generated in <workspace>/dist/package.tgz
-➤ YN0000: Done in <duration> <duration>
+➤ YN0000: Done in <duration>
 ```
 
 ## `vp pm pack --json`
@@ -38,5 +38,5 @@ should support pass through arguments
 ```
 ➤ YN0000: dist/package.tgz
 ➤ YN0000: package.json
-➤ YN0000: Done in <duration> <duration>
+➤ YN0000: Done in <duration>
 ```