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e2e tests for navigation() and <Link prefetch="navigation">#96077

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unstable-navigation-link-prefetchfrom
unstable-navigation-tests
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e2e tests for navigation() and <Link prefetch="navigation">#96077
acdlite wants to merge 1 commit into
unstable-navigation-link-prefetchfrom
unstable-navigation-tests

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@acdlite acdlite commented Jul 22, 2026

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Test suite for await navigation() and <Link prefetch="navigation">. I've split these into a separate PR for ease of review.

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github-actions Bot commented Jul 22, 2026

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Failing test suites

Commit: 129efe6 | About building and testing Next.js

pnpm test-start-turbo test/production/next-server-nft/next-server-nft.test.ts (turbopack) (job)

  • next-server-nft > with adapters > should not trace too many files in next-minimal-server.js.nft.json (DD)
Expand output

● next-server-nft › with adapters › should not trace too many files in next-minimal-server.js.nft.json

expect(received).toMatchInlineSnapshot(snapshot)

Snapshot name: `next-server-nft with adapters should not trace too many files in next-minimal-server.js.nft.json 1`

- Snapshot  - 0
+ Received  + 1

@@ -109,10 +109,11 @@
    "/node_modules/next/dist/shared/lib/is-plain-object.js",
    "/node_modules/next/dist/shared/lib/is-thenable.js",
    "/node_modules/next/dist/shared/lib/lazy-dynamic/bailout-to-csr.js",
    "/node_modules/next/dist/shared/lib/no-fallback-error.external.js",
    "/node_modules/next/dist/shared/lib/promise-with-resolvers.js",
+   "/node_modules/next/dist/shared/lib/render-stage.js",
    "/node_modules/next/dist/shared/lib/server-reference-info.js",
    "/node_modules/react/cjs/react.development.js",
    "/node_modules/react/cjs/react.production.js",
    "/node_modules/react/index.js",
  ]

  599 |         const trace = normalizeNFT(repoRoot, Array.from(files))
  600 |
> 601 |         expect(trace).toMatchInlineSnapshot(`
      |                       ^
  602 |          [
  603 |            "./.next/BUILD_ID",
  604 |            "./.next/app-path-routes-manifest.json",

  at Object.toMatchInlineSnapshot (production/next-server-nft/next-server-nft.test.ts:601:23)

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Stats from current PR

🔴 2 regressions, 1 improvement

Metric Canary PR Change Trend
node_modules Size 527 MB 528 MB 🔴 +964 kB (+0%) ▁▁▁██
Turbo Build Time (cached) 5.468s 5.756s 🔴 +288ms (+5%) ▁█▃▁▁
Webpack Build Time 26.187s 25.487s 🟢 700ms (-3%) ▁▁▁▁▁
📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 814ms 813ms ▁█▂▂▁
Cold (Ready in log) 785ms 801ms ▁█▂▁▁
Cold (First Request) 1.328s 1.384s ▁█▃▁▁
Warm (Listen) 812ms 813ms ▁█▂▁▁
Warm (Ready in log) 777ms 796ms ▁█▂▁▁
Warm (First Request) 1.311s 1.349s ▁█▂▁▁
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 812ms 813ms ▂▂▁▂▂
Cold (Ready in log) 778ms 781ms ▁▁▁▁▁
Cold (First Request) 3.379s 3.441s ▃▂▁▃▂
Warm (Listen) 813ms 813ms ▂▂▂▂▂
Warm (Ready in log) 781ms 785ms ▁▁▁▁▁
Warm (First Request) 3.439s 3.497s ▃▁▁▄▁

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 5.226s 5.429s ▁█▄▁▁
Cached Build 5.468s 5.756s 🔴 +288ms (+5%) ▁█▃▁▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 26.187s 25.487s 🟢 700ms (-3%) ▁▁▁▁▁
Cached Build 26.084s 25.903s ▁▂▁▁▁
node_modules Size 527 MB 528 MB 🔴 +964 kB (+0%) ▁▁▁██
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Total 415 kB 416 kB ⚠️ +392 B
Middleware
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middleware-b..fest.js gzip 618 B 620 B
middleware-r..fest.js gzip 156 B 156 B
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Total 46.8 kB 46.6 kB ✅ -191 B
Build Details
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Total 718 B 718 B
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index.pack.old gzip 120 kB 120 kB
Total 5.08 MB 5.11 MB ⚠️ +30.1 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 366 kB 367 kB
app-page-exp..prod.js gzip 202 kB 203 kB
app-page-tur...dev.js gzip 365 kB 367 kB
app-page-tur..prod.js gzip 202 kB 202 kB
app-page-tur...dev.js gzip 362 kB 363 kB
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pages.runtim..prod.js gzip 39.7 kB 39.7 kB
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use-cache-pr...dev.js gzip 71.6 kB 71.6 kB
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use-cache-pr...dev.js gzip 69.9 kB 69.9 kB
Total 3.51 MB 3.52 MB ⚠️ +7.36 kB
📝 Changed Files (21 files)

Files with changes:

  • app-page-exp..ntime.dev.js
  • app-page-exp..time.prod.js
  • app-page-tur..ntime.dev.js
  • app-page-tur..time.prod.js
  • app-page-tur..ntime.dev.js
  • app-page-tur..time.prod.js
  • app-page.runtime.dev.js
  • app-page.runtime.prod.js
  • app-route-ex..ntime.dev.js
  • app-route-ex..time.prod.js
  • app-route-tu..ntime.dev.js
  • app-route-tu..time.prod.js
  • app-route-tu..ntime.dev.js
  • app-route-tu..time.prod.js
  • app-route.runtime.dev.js
  • app-route.ru..time.prod.js
  • server.runtime.prod.js
  • use-cache-pr..ntime.dev.js
  • use-cache-pr..ntime.dev.js
  • use-cache-pr..ntime.dev.js
  • ... and 1 more
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📎 Tarball URL
https://vercel-packages.vercel.app/next/commits/129efe6cd423392a14b52c374e3abfdca769ca93/next

Commit: 129efe6

@acdlite acdlite changed the title Add e2e tests for navigation() and <Link prefetch="navigation"> e2e tests for navigation() and <Link prefetch="navigation"> Jul 22, 2026
Test suite for `await navigation()` and `<Link prefetch="navigation">`. I've split these into a separate PR for ease of review.
@acdlite
acdlite force-pushed the unstable-navigation-link-prefetch branch from acafcde to b6469bc Compare July 22, 2026 18:55
@acdlite
acdlite force-pushed the unstable-navigation-tests branch from d34e174 to 129efe6 Compare July 22, 2026 18:55
@acdlite
acdlite marked this pull request as ready for review July 22, 2026 19:03
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