test(dev): add tests for dev-engine principles#9720
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Adds e2e tests for the design principles in `meta/design/dev-engine.md` (all except panics), in the `hmr-full-bundle-mode` playground. One folder + one spec per scenario, same layout as `lazy-compilation`. Each check in the specs is tagged with the principle it proves (`Design Principle 1/2/3`). This fully tests the fixes raised in #9652 and #9686 ## New tests - **`initial-error.spec.ts`** — the first build fails (syntax error). The page shows the error overlay, refreshing does not retry the build, and fixing the file recovers. - **`rebuild-error.spec.ts`** — a rebuild fails (`generateBundle` throws, controlled by a flag file). The overlay shows and survives a refresh, refreshing never retries, each new failed build reports its own error, and a file change recovers. Also checks that opening the page on fresh output never triggers a build. - **`hmr-error.spec.ts`** — an HMR update fails (syntax error). Refreshing the page triggers a full rebuild — the one case where page access starts a build. A second refresh does nothing, and fixing the file recovers. What each test checks is observable from the outside: `/_dev/status` (`buildSeq` proves whether a build ran), the error overlay, and page content. ## Other changes - Rewrote the comments in `tests/playground/` in simple english, keeping the useful references (design doc, PR numbers, file paths). - Synced two stale notes in `dev-engine.md` (the refresh-after-HMR-error escape hatch is now wired up and covered by a test). 🤖 Generated with [Claude Code](https://claude.com/claude-code)
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## [1.1.2] - 2026-06-18 ### 📝 Notable tsconfig behavior changes These ship via the `oxc_resolver` 11.21.3 bump (#9841) and affect `resolve.tsconfigPaths` (Vite 8 resolves through oxc-resolver): - **Honor explicit non-TS extensions in `include`** (oxc-project/oxc-resolver#1213). `compilerOptions.paths` now resolve for importers whose extension is explicitly listed in a tsconfig's `include` (e.g. `src/**/*.vue`, `src/**/*.svelte`). Previously oxc-resolver filtered importers by extension before evaluating the `include` globs, so a `.vue`/`.svelte` file listed in `include` never matched its project and its `paths` were skipped. This unblocks the default create-vite Vue + TS layout (a solution-style root plus a referenced `tsconfig.app.json` that declares `paths` and `include: ["src/**/*.ts", "src/**/*.vue"]`). Matches vue-tsc and svelte-check, which register these extensions via TypeScript's `extraFileExtensions`. - **No fallback to the outermost tsconfig in auto-discovery** (oxc-project/oxc-resolver#1220). Auto-discovery no longer attaches the topmost ancestor `tsconfig.json` to a file that no project actually owns (via `files` / `include` / project references). Previously such a file inherited the outermost ancestor's `paths` / `baseUrl`, leaking aliases into files that project does not own. oxc-resolver now returns no config in that case, matching tsserver / typescript-go, which route such files to an inferred project with no aliases. ### 🚀 Features - add option named for invalid return type errors for more places (#9846) by @shulaoda - add option names for invalid return type errors (#9821) by @sapphi-red - transform: infer decorator strictNullChecks from tsconfig (#9590) by @kylecannon - expose React Compiler options for rolldown and Vite users (#9801) by @Boshen - tracing: gate chrome-json trace layer behind `chrome-tracing` feature (#9773) by @hyf0 - dev: align test-dev-server with Vite dev server (#9668) by @h-a-n-a ### 🐛 Bug Fixes - plugin_timings: point doc link to existing checks reference page (#9837) by @hyf0 - generator: correct contradictory panic message in cjs cross-chunk symbol lookup (#9836) by @hyf0 - esm: preserve with clause on export * from external (#9796) by @hyf0 - Make external_import_binding_merger deterministic (#9755) by @naruaway - surface invalid `manualCodeSplitting` group `test` regex as an error (#9792) by @shulaoda - avoid panic on `output.file` without a file name (#9789) by @shulaoda - avoid O(N^2) rendering of high-volume diagnostics (#9748) (#9749) by @IWANABETHATGUY - avoid panic on JSON numbers outside f64 range (#9788) by @shulaoda - deps: bump mimalloc-safe to 0.1.63 to fix worker_threads segfault (#9785) by @shulaoda - cache ESM evaluation errors (#9784) by @sapphi-red - wrap node require helper in pure IIFE (#9783) by @kb019 - lazy-barrel: load locally-used imports on a re-exported record (#9757) by @shulaoda - avoid dangling wrapped-ESM init call across chunks (#9502) (#9717) by @IWANABETHATGUY - dev: detect same-second rewrites in CI poll watcher (#9736) by @h-a-n-a - dev: force rebuild after HMR errors (#9686) by @h-a-n-a - dev: print build errors on browser refresh after a failed build (#9652) by @h-a-n-a ### 🚜 Refactor - single-source the chunk $N symbol-naming algorithm (#9831) by @Dunqing - simplify common_dir helper (#9857) by @IWANABETHATGUY - drop commondir crate in favor of in-house helper (#9849) by @Boshen - binding: extract helpers from normalize_binding_options (#9842) by @Boshen - move rolldown_filter_analyzer to tasks and scope oxc cfg feature (#9839) by @Boshen - options: merge manualCodeSplitting into codeSplitting object form (#9805) by @IWANABETHATGUY - options: support codeSplitting object form in CodeSplittingMode (#9804) by @IWANABETHATGUY - diagnostic: reuse ByteLocator for per-source line lookup (#9762) by @IWANABETHATGUY - remove redundant Arc around tracing spans (#9778) by @camc314 - remove unnecessary `Arc` around sourcemap sender (#9777) by @camc314 - rolldown_plugin_vite_wasm_fallback: remove the plugin (#9775) by @sapphi-red - binding: remove infer-able `napi(ts_type)` (#9737) by @sapphi-red - remove preprocessor span dedup (#9734) by @hyf0 - identify AST nodes by NodeId instead of Span/Address (#9609) by @IWANABETHATGUY ### 📚 Documentation - tsconfig: align auto-discovery docs with oxc-resolver behavior (#9845) by @shulaoda - relocate meta/design to internal-docs, split design from implementation (#9826) by @h-a-n-a - meta: add options normalization design doc (#9818) by @IWANABETHATGUY - document why the napi tracing feature is enabled (#9766) by @Boshen - dev: move test-dev-server test guidance into the testing docs (#9809) by @h-a-n-a ### ⚡ Performance - drop unused regex unicode property tables from the binding (#9848) by @Boshen - drop urlencoding crate in favor of percent-encoding (#9851) by @Boshen - drop owo-colors supports-colors feature in vite reporter (#9824) by @Boshen - skip enum member value extraction for non-TypeScript modules (#9840) by @shulaoda - rolldown: use unstable sort for itertools sorted_by at unique-key sites (#9827) by @Boshen - cheaper deterministic ordering in external import binding merger (#9810) by @IWANABETHATGUY - disable idna's ICU backend by pinning idna_adapter to 1.0.0 (-129 KB) (#9811) by @Boshen - size: use unstable sort where stability is unneeded (#9803) by @Boshen - remove num-format dependency from vite reporter (#9795) by @Boshen - reduce js callback error size (#9776) by @Boshen - rolldown_error: remove Debug supertrait from BuildEvent (#9798) by @Boshen - reduce plugin hook order code size (#9761) by @Boshen - deps: disable `infer` default features to reduce binary size (#9765) by @Boshen - reduce pluginable monomorphization size (#9771) by @Boshen - avoid rebuilding replace plugin values (#9764) by @Boshen - defer link-stage-output drop to rayon workers after output is produced (#9733) by @Brooooooklyn - tree-shaking: hoist already-included guard to call sites in inclusion DFS (#9738) by @Brooooooklyn - renamer: dedup before allocating the owned name in add_symbol_in_root_scope (#9740) by @Brooooooklyn ### 🧪 Testing - allocs: track allocation counts for rolldown_sourcemap (#9835) by @hyf0 - bench: add CodSpeed micro-benchmarks for rolldown_sourcemap (#9834) by @hyf0 - add cjs named export mutation test (#9823) by @sapphi-red - dev: restore shared-page reliability conventions in AGENTS.md (#9786) by @h-a-n-a - dev: add `AGENTS.md` test guidance for agents (#9763) by @h-a-n-a - dev: split out initial-build-error into its own playground (#9772) by @h-a-n-a - dev: align e2e suite with Vite and parallelize playgrounds (#9759) by @h-a-n-a - remove unnecessary module namespace object JSON serializations in tests (#9725) by @sapphi-red - use `assert.deepStrictEqual` instead of `assert.deepEqual` by using `assert/strict` instead of `assert` (#9724) by @sapphi-red - hmr: add test case for #5301 (#5302) by @sapphi-red - dev: add tests for dev-engine principles (#9720) by @h-a-n-a - dev: align dev-engine test harness with Vite (#9684) by @h-a-n-a ### ⚙️ Miscellaneous Tasks - deps: update napi to 3.9.3 (#9862) by @shulaoda - deps: update oxc to 0.137.0 (#9856) by @Boshen - re-enable default lld linker on x86_64-unknown-linux-gnu (#9855) by @Boshen - deps: bump vite-plus to 0.2.1 (#9850) by @Boshen - skills: translate _config.json when encoding rolldown REPL links (#9847) by @IWANABETHATGUY - deps: update oxc_resolver and oxc_resolver_napi to 11.21.3 (#9841) by @Boshen - pin vite-plus (vp) CLI to 0.1.24 in setup-vp (#9830) by @Boshen - add crate/package-level CODEOWNERS (#9819) by @IWANABETHATGUY - drop unused derive_more display feature from rolldown_plugin (#9820) by @Boshen - remove auto-assign PR workflow (#9807) by @IWANABETHATGUY - deps: update rollup submodule for tests to v4.62.0 (#9780) by @rolldown-guard[bot] - deps: update esbuild for tests to 0.28.1 (#9779) by @rolldown-guard[bot] - deps: update test262 submodule for tests (#9781) by @rolldown-guard[bot] - deps: update oxc to 0.136.0 (#9770) by @Boshen - add pull request template (#9756) by @sapphi-red - clarify `rolldown_plugin_vite_*` is compatible for the same minor (#9774) by @sapphi-red - deps: update github actions (#9745) by @renovate[bot] - deps: update rust crates (#9747) by @renovate[bot] - deps: update napi to v3.9.2 (#9744) by @renovate[bot] - deps: update npm packages (#9746) by @renovate[bot] - deps: update @napi-rs/cli and emnapi deps (#9741) by @Brooooooklyn - generator: fix `vp fmt` on Windows (#9727) by @sapphi-red - ban importing from `assert` and recommend `assert/strict` (#9726) by @sapphi-red ### ❤️ New Contributors * @naruaway made their first contribution in [#9755](#9755) * @kb019 made their first contribution in [#9783](#9783) Co-authored-by: shulaoda <165626830+shulaoda@users.noreply.github.com>
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## [1.0.16] - 2026-06-18 ### 🚀 Features - add option named for invalid return type errors for more places (rolldown#9846) by `@shulaoda` - add option names for invalid return type errors (rolldown#9821) by `@sapphi-red` - transform: infer decorator strictNullChecks from tsconfig (rolldown#9590) by `@kylecannon` - expose React Compiler options for rolldown and Vite users (rolldown#9801) by `@Boshen` - tracing: gate chrome-json trace layer behind `chrome-tracing` feature (rolldown#9773) by `@hyf0` - dev: align test-dev-server with Vite dev server (rolldown#9668) by `@h-a-n-a` ### 🐛 Bug Fixes - plugin_timings: point doc link to existing checks reference page (rolldown#9837) by `@hyf0` - generator: correct contradictory panic message in cjs cross-chunk symbol lookup (rolldown#9836) by `@hyf0` - esm: preserve with clause on export * from external (rolldown#9796) by `@hyf0` - Make external_import_binding_merger deterministic (rolldown#9755) by `@naruaway` - surface invalid `manualCodeSplitting` group `test` regex as an error (rolldown#9792) by `@shulaoda` - avoid panic on `output.file` without a file name (rolldown#9789) by `@shulaoda` - avoid O(N^2) rendering of high-volume diagnostics (rolldown#9748) (rolldown#9749) by `@IWANABETHATGUY` - avoid panic on JSON numbers outside f64 range (rolldown#9788) by `@shulaoda` - deps: bump mimalloc-safe to 0.1.63 to fix worker_threads segfault (rolldown#9785) by `@shulaoda` - cache ESM evaluation errors (rolldown#9784) by `@sapphi-red` - wrap node require helper in pure IIFE (rolldown#9783) by `@kb019` - lazy-barrel: load locally-used imports on a re-exported record (rolldown#9757) by `@shulaoda` - avoid dangling wrapped-ESM init call across chunks (rolldown#9502) (rolldown#9717) by `@IWANABETHATGUY` - dev: detect same-second rewrites in CI poll watcher (rolldown#9736) by `@h-a-n-a` - dev: force rebuild after HMR errors (rolldown#9686) by `@h-a-n-a` - dev: print build errors on browser refresh after a failed build (rolldown#9652) by `@h-a-n-a` ### 🚜 Refactor - single-source the chunk $N symbol-naming algorithm (rolldown#9831) by `@Dunqing` - simplify common_dir helper (rolldown#9857) by `@IWANABETHATGUY` - drop commondir crate in favor of in-house helper (rolldown#9849) by `@Boshen` - binding: extract helpers from normalize_binding_options (rolldown#9842) by `@Boshen` - move rolldown_filter_analyzer to tasks and scope oxc cfg feature (rolldown#9839) by `@Boshen` - options: merge manualCodeSplitting into codeSplitting object form (rolldown#9805) by `@IWANABETHATGUY` - options: support codeSplitting object form in CodeSplittingMode (rolldown#9804) by `@IWANABETHATGUY` - diagnostic: reuse ByteLocator for per-source line lookup (rolldown#9762) by `@IWANABETHATGUY` - remove redundant Arc around tracing spans (rolldown#9778) by `@camc314` - remove unnecessary `Arc` around sourcemap sender (rolldown#9777) by `@camc314` - rolldown_plugin_vite_wasm_fallback: remove the plugin (rolldown#9775) by `@sapphi-red` - binding: remove infer-able `napi(ts_type)` (rolldown#9737) by `@sapphi-red` - remove preprocessor span dedup (rolldown#9734) by `@hyf0` - identify AST nodes by NodeId instead of Span/Address (rolldown#9609) by `@IWANABETHATGUY` ### 📚 Documentation - tsconfig: align auto-discovery docs with oxc-resolver behavior (rolldown#9845) by `@shulaoda` - relocate meta/design to internal-docs, split design from implementation (rolldown#9826) by `@h-a-n-a` - meta: add options normalization design doc (rolldown#9818) by `@IWANABETHATGUY` - document why the napi tracing feature is enabled (rolldown#9766) by `@Boshen` - dev: move test-dev-server test guidance into the testing docs (rolldown#9809) by `@h-a-n-a` ### ⚡ Performance - drop unused regex unicode property tables from the binding (rolldown#9848) by `@Boshen` - drop urlencoding crate in favor of percent-encoding (rolldown#9851) by `@Boshen` - drop owo-colors supports-colors feature in vite reporter (rolldown#9824) by `@Boshen` - skip enum member value extraction for non-TypeScript modules (rolldown#9840) by `@shulaoda` - rolldown: use unstable sort for itertools sorted_by at unique-key sites (rolldown#9827) by `@Boshen` - cheaper deterministic ordering in external import binding merger (rolldown#9810) by `@IWANABETHATGUY` - disable idna's ICU backend by pinning idna_adapter to 1.0.0 (-129 KB) (rolldown#9811) by `@Boshen` - size: use unstable sort where stability is unneeded (rolldown#9803) by `@Boshen` - remove num-format dependency from vite reporter (rolldown#9795) by `@Boshen` - reduce js callback error size (rolldown#9776) by `@Boshen` - rolldown_error: remove Debug supertrait from BuildEvent (rolldown#9798) by `@Boshen` - reduce plugin hook order code size (rolldown#9761) by `@Boshen` - deps: disable `infer` default features to reduce binary size (rolldown#9765) by `@Boshen` - reduce pluginable monomorphization size (rolldown#9771) by `@Boshen` - avoid rebuilding replace plugin values (rolldown#9764) by `@Boshen` - defer link-stage-output drop to rayon workers after output is produced (rolldown#9733) by `@Brooooooklyn` - tree-shaking: hoist already-included guard to call sites in inclusion DFS (rolldown#9738) by `@Brooooooklyn` - renamer: dedup before allocating the owned name in add_symbol_in_root_scope (rolldown#9740) by `@Brooooooklyn` ### 🧪 Testing - allocs: track allocation counts for rolldown_sourcemap (rolldown#9835) by `@hyf0` - bench: add CodSpeed micro-benchmarks for rolldown_sourcemap (rolldown#9834) by `@hyf0` - add cjs named export mutation test (rolldown#9823) by `@sapphi-red` - dev: restore shared-page reliability conventions in AGENTS.md (rolldown#9786) by `@h-a-n-a` - dev: add `AGENTS.md` test guidance for agents (rolldown#9763) by `@h-a-n-a` - dev: split out initial-build-error into its own playground (rolldown#9772) by `@h-a-n-a` - dev: align e2e suite with Vite and parallelize playgrounds (rolldown#9759) by `@h-a-n-a` - remove unnecessary module namespace object JSON serializations in tests (rolldown#9725) by `@sapphi-red` - use `assert.deepStrictEqual` instead of `assert.deepEqual` by using `assert/strict` instead of `assert` (rolldown#9724) by `@sapphi-red` - hmr: add test case for rolldown#5301 (rolldown#5302) by `@sapphi-red` - dev: add tests for dev-engine principles (rolldown#9720) by `@h-a-n-a` - dev: align dev-engine test harness with Vite (rolldown#9684) by `@h-a-n-a` ### ⚙️ Miscellaneous Tasks - add rollipop-integration skill by `@leegeunhyeok` - update esbuild snap diff metrics by `@leegeunhyeok` - sync upstream rolldown v1.1.2 by `@leegeunhyeok` - deps: update napi to 3.9.3 (rolldown#9862) by `@shulaoda` - deps: update oxc to 0.137.0 (rolldown#9856) by `@Boshen` - re-enable default lld linker on x86_64-unknown-linux-gnu (rolldown#9855) by `@Boshen` - deps: bump vite-plus to 0.2.1 (rolldown#9850) by `@Boshen` - skills: translate _config.json when encoding rolldown REPL links (rolldown#9847) by `@IWANABETHATGUY` - deps: update oxc_resolver and oxc_resolver_napi to 11.21.3 (rolldown#9841) by `@Boshen` - pin vite-plus (vp) CLI to 0.1.24 in setup-vp (rolldown#9830) by `@Boshen` - add crate/package-level CODEOWNERS (rolldown#9819) by `@IWANABETHATGUY` - drop unused derive_more display feature from rolldown_plugin (rolldown#9820) by `@Boshen` - remove auto-assign PR workflow (rolldown#9807) by `@IWANABETHATGUY` - deps: update rollup submodule for tests to v4.62.0 (rolldown#9780) by `@rolldown-guard[bot]` - deps: update esbuild for tests to 0.28.1 (rolldown#9779) by `@rolldown-guard[bot]` - deps: update test262 submodule for tests (rolldown#9781) by `@rolldown-guard[bot]` - deps: update oxc to 0.136.0 (rolldown#9770) by `@Boshen` - add pull request template (rolldown#9756) by `@sapphi-red` - clarify `rolldown_plugin_vite_*` is compatible for the same minor (rolldown#9774) by `@sapphi-red` - deps: update github actions (rolldown#9745) by `@renovate[bot]` - deps: update rust crates (rolldown#9747) by `@renovate[bot]` - deps: update napi to v3.9.2 (rolldown#9744) by `@renovate[bot]` - deps: update npm packages (rolldown#9746) by `@renovate[bot]` - deps: update @napi-rs/cli and emnapi deps (rolldown#9741) by `@Brooooooklyn` - generator: fix `vp fmt` on Windows (rolldown#9727) by `@sapphi-red` - ban importing from `assert` and recommend `assert/strict` (rolldown#9726) by `@sapphi-red` Co-authored-by: leegeunhyeok <26512984+leegeunhyeok@users.noreply.github.com>
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Adds e2e tests for the design principles in
meta/design/dev-engine.md(all except panics), in thehmr-full-bundle-modeplayground. One folder + one spec per scenario, same layout aslazy-compilation. Each check in the specs is tagged with the principle it proves (Design Principle 1/2/3).This fully tests the fixes raised in #9652 and #9686
New tests
initial-error.spec.ts— the first build fails (syntax error). The page shows the error overlay, refreshing does not retry the build, and fixing the file recovers.rebuild-error.spec.ts— a rebuild fails (generateBundlethrows, controlled by a flag file). The overlay shows and survives a refresh, refreshing never retries, each new failed build reports its own error, and a file change recovers. Also checks that opening the page on fresh output never triggers a build.hmr-error.spec.ts— an HMR update fails (syntax error). Refreshing the page triggers a full rebuild — the one case where page access starts a build. A second refresh does nothing, and fixing the file recovers.What each test checks is observable from the outside:
/_dev/status(buildSeqproves whether a build ran), the error overlay, and page content.Other changes
tests/playground/in simple english, keeping the useful references (design doc, PR numbers, file paths).dev-engine.md(the refresh-after-HMR-error escape hatch is now wired up and covered by a test).🤖 Generated with Claude Code