test: expand Next.js compat coverage and fix parity bugs by dmmulroy · Pull Request #578 · cloudflare/vinext

autoresearch: setup compat test audit loop

dmmulroy

committed

Baseline: 233 passing compat tests, 21 files, 13 dirs covered. Fixed autoresearch.sh ANSI stripping.\n\nResult: {"status":"keep","passing_compat_tests":233,"test_files":21,"dirs_covered":13,"skippe…

dmmulroy

committed

Port app-fetch-deduping-errors: 3 tests for page rendering despite fetch errors in generateMetadata and page component\n\nResult: {"status":"keep","passing_compat_tests":236,"test_files":22,"dirs_c…

dmmulroy

committed

Port forbidden: 5 tests for forbidden() boundary, 403 status, scoped + root escalation. Also triaged 6 P1 dirs as skip (Playwright/CLI/build-specific).\n\nResult: {"status":"keep","passing_compat_t…

dmmulroy

committed

Port unauthorized: 5 tests for unauthorized() boundary, 401 status, scoped + root escalation. Skip proxy-missing-export (covered by PR #203).\n\nResult: {"status":"keep","passing_compat_tests":246,…

dmmulroy

committed

Port catch-all-optional: 3 tests for optional catch-all routing. Batch-triage 14 more P1+P2 dirs as skip. 249 total tests.\n\nResult: {"status":"keep","passing_compat_tests":249,"test_files":25,"di…

dmmulroy

committed

Port simple-routes + FIX BUG: route handlers received plain Request instead of NextRequest (.nextUrl undefined). Wrapped in NextRequest in app-rsc-entry.ts.\n\nResult: {"status":"keep","passing_com…

dmmulroy

committed

Port rsc-redirect: 3 tests for redirect() from server component. Found RSC redirect behavioral difference (307 vs 200+stream). Triage 4 more dirs.\n\nResult: {"status":"keep","passing_compat_tests"…

dmmulroy

committed

Port static-generation-status: 5 tests for notFound/redirect/permanentRedirect status codes + client component redirect SSR. Triage 5 more dirs.\n\nResult: {"status":"keep","passing_compat_tests":2…

dmmulroy

committed

Port layout-params: 6 tests. BUG FOUND+FIXED: layouts received ALL params instead of scoped per-segment params. Fixed 4 rendering loops in app-rsc-entry.ts + buildPageElement. Added cheerio + fetch…

dmmulroy

committed

Port metadata-dynamic-routes: 10 tests for robots.txt, sitemap.xml (alternates/images/videos), manifest.webmanifest, icon.tsx file convention routes.\n\nResult: {"status":"keep","passing_compat_tes…

dmmulroy

committed

Port searchparams-static-bailout: 5 tests for searchParams in server/client components, passthrough from server→client, and no-use pages. Triage 2 more dirs.\n\nResult: {"status":"keep","passing_co…

dmmulroy

committed

Port use-params (3 tests: useParams SSR for single/nested/catchall) + conflicting-search-and-route-params (2 tests: same-name route vs search param). Triage 3 more dirs.\n\nResult: {"status":"keep"…

dmmulroy

committed

Port _allow-underscored-root-directory: 3 tests using dedicated fixture. Added APP_UNDERSCORED_ROOT_FIXTURE_DIR and a minimal fixture to verify private underscore folders are hidden while %5F-decod…

dmmulroy

committed

Port use-cache-route-handler-only: 2 tests using a dedicated route-handler-only fixture. Verified function-level "use cache" in route handlers and revalidatePath() invalidation without any pages pr…

dmmulroy

committed

Port dynamic-data: 4 dev-mode HTTP tests for top-level, force-dynamic, force-static, and client-page request API usage. BUG FOUND+FIXED: force-static pages leaked real searchParams instead of empty…

dmmulroy

committed

Port rewrites-redirects: 2 pure-HTTP tests for exotic URL-scheme redirects in next.config (itms-apps with and without //).\n\nResult: {"status":"keep","passing_compat_tests":296,"test_files":37,"di…

dmmulroy

committed

Fix benchmark harness: autoresearch.sh now checks Vitest exit code instead of grepping for 'passed', preventing false positives when some compat tests fail. Metric unchanged but benchmark correctne…

dmmulroy

committed

Port app-routes-trailing-slash: 2 tests using dedicated trailingSlash fixture. Verified route handlers redirect to slash-canonical URLs and preserve the slash in both url.pathname and req.nextUrl.p…

dmmulroy

committed

Port not-found-default HTTP subset (3 tests) with a dedicated fixture. Fixed a real runtime gap: default 404 pages now fall back to next/error and stay wrapped in root/ancestor layouts when no expl…

dmmulroy

committed

Port partial app-middleware coverage (+11 HTTP tests) with a dedicated hybrid app+pages fixture. Fixed real runtime gaps: middleware now has a next/headers context across dev/app/prod execution pat…

dmmulroy

committed

chore: drop autoresearch assets from PR branch

dmmulroy

committed

test: add draft-mode middleware edge cases and root optional catch-all coverage

dmmulroy

committed

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test: expand Next.js compat coverage and fix parity bugs#578

test: expand Next.js compat coverage and fix parity bugs#578
dmmulroy wants to merge 24 commits intocloudflare:mainfrom
dmmulroy:autoresearch/nextjs-compat-audit-2026-03-17

Commits on Mar 17, 2026

autoresearch: setup compat test audit loop

Baseline: 233 passing compat tests, 21 files, 13 dirs covered. Fixed autoresearch.sh ANSI stripping.\n\nResult: {"status":"keep","passing_compat_tests":233,"test_files":21,"dirs_covered":13,"skippe…

Port app-fetch-deduping-errors: 3 tests for page rendering despite fetch errors in generateMetadata and page component\n\nResult: {"status":"keep","passing_compat_tests":236,"test_files":22,"dirs_c…

Port forbidden: 5 tests for forbidden() boundary, 403 status, scoped + root escalation. Also triaged 6 P1 dirs as skip (Playwright/CLI/build-specific).\n\nResult: {"status":"keep","passing_compat_t…

Port unauthorized: 5 tests for unauthorized() boundary, 401 status, scoped + root escalation. Skip proxy-missing-export (covered by PR #203).\n\nResult: {"status":"keep","passing_compat_tests":246,…

Port catch-all-optional: 3 tests for optional catch-all routing. Batch-triage 14 more P1+P2 dirs as skip. 249 total tests.\n\nResult: {"status":"keep","passing_compat_tests":249,"test_files":25,"di…

Port simple-routes + FIX BUG: route handlers received plain Request instead of NextRequest (.nextUrl undefined). Wrapped in NextRequest in app-rsc-entry.ts.\n\nResult: {"status":"keep","passing_com…

Port rsc-redirect: 3 tests for redirect() from server component. Found RSC redirect behavioral difference (307 vs 200+stream). Triage 4 more dirs.\n\nResult: {"status":"keep","passing_compat_tests"…

Port static-generation-status: 5 tests for notFound/redirect/permanentRedirect status codes + client component redirect SSR. Triage 5 more dirs.\n\nResult: {"status":"keep","passing_compat_tests":2…

Port layout-params: 6 tests. BUG FOUND+FIXED: layouts received ALL params instead of scoped per-segment params. Fixed 4 rendering loops in app-rsc-entry.ts + buildPageElement. Added cheerio + fetch…

Port metadata-dynamic-routes: 10 tests for robots.txt, sitemap.xml (alternates/images/videos), manifest.webmanifest, icon.tsx file convention routes.\n\nResult: {"status":"keep","passing_compat_tes…

Port searchparams-static-bailout: 5 tests for searchParams in server/client components, passthrough from server→client, and no-use pages. Triage 2 more dirs.\n\nResult: {"status":"keep","passing_co…

Port use-params (3 tests: useParams SSR for single/nested/catchall) + conflicting-search-and-route-params (2 tests: same-name route vs search param). Triage 3 more dirs.\n\nResult: {"status":"keep"…

Port _allow-underscored-root-directory: 3 tests using dedicated fixture. Added APP_UNDERSCORED_ROOT_FIXTURE_DIR and a minimal fixture to verify private underscore folders are hidden while %5F-decod…

Port use-cache-route-handler-only: 2 tests using a dedicated route-handler-only fixture. Verified function-level "use cache" in route handlers and revalidatePath() invalidation without any pages pr…

Port dynamic-data: 4 dev-mode HTTP tests for top-level, force-dynamic, force-static, and client-page request API usage. BUG FOUND+FIXED: force-static pages leaked real searchParams instead of empty…

Port rewrites-redirects: 2 pure-HTTP tests for exotic URL-scheme redirects in next.config (itms-apps with and without //).\n\nResult: {"status":"keep","passing_compat_tests":296,"test_files":37,"di…

Fix benchmark harness: autoresearch.sh now checks Vitest exit code instead of grepping for 'passed', preventing false positives when some compat tests fail. Metric unchanged but benchmark correctne…

Port app-routes-trailing-slash: 2 tests using dedicated trailingSlash fixture. Verified route handlers redirect to slash-canonical URLs and preserve the slash in both url.pathname and req.nextUrl.p…

Port not-found-default HTTP subset (3 tests) with a dedicated fixture. Fixed a real runtime gap: default 404 pages now fall back to next/error and stay wrapped in root/ancestor layouts when no expl…

Port partial app-middleware coverage (+11 HTTP tests) with a dedicated hybrid app+pages fixture. Fixed real runtime gaps: middleware now has a next/headers context across dev/app/prod execution pat…

chore: drop autoresearch assets from PR branch

test: add draft-mode middleware edge cases and root optional catch-all coverage

Commits on Mar 20, 2026

chore: pin cheerio test dependency