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monstercameron merged 1 commit into from
Jun 25, 2026
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docs: mark hydration covered + parity status summary #41

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16 changes: 15 additions & 1 deletion docs/REACT_TEST_PARITY.md
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Expand Up @@ -11,6 +11,20 @@ applicable surface is the core element/reconciler/hooks/SSR behavior.

Legend: ✅ done · 🔶 partial · ⬜ todo · 🚫 N/A (no GWC analog / architectural)

## Status

Every applicable React test with a GWC analog has been ported (or was already
covered) and passes. The remaining non-✅ items are: (a) 🚫 architectural
non-analogs — cloneElement, the `React.memo` wrapper, `Children.only`, JSX
transform, ES6 classes, concurrent/act/lazy/expiration, SSR primitive children,
and the whole devtools/native/server-dom-webpack family; and (b) the single 🔶
where GWC's *own* feature is partial — full Suspense/async-boundary streaming
(the synchronous streaming shell + hooks + context are covered; out-of-order
Suspense streaming is incomplete in GWC itself, so there is nothing stable to
port against yet). The synchronous core (reconciler, hooks, effects, context,
refs, fragments, transitions, state isolation) and the entire SSR surface
(serialization + SSR hooks) are comprehensively covered.

## How tests are ported

GWC's full client runtime is testable natively via the mock DOM adapter (React's
Expand All @@ -35,7 +49,7 @@ re-renders/effects are observable inline. SSR behavior is tested via
| ReactDOMServerIntegrationTextarea/Input/Checkbox | controlled inputs SSR | ✅ | ui/ssr_controlled_inputs_test.go (textarea value->content: found+fixed v3.4.9) |
| ReactDOMServerIntegrationSelect | select value -> selected option | ✅ | ui/ssr_select_test.go (found+fixed v3.4.10; match by value/text, optgroup) |
| ReactDOMFizzServer* | streaming SSR + hooks/context | 🔶 | internal/runtime/ssr_stream_hooks_test.go — streaming runs hooks + threads context (v3.5.1); async-boundary/Suspense streaming itself still partial |
| ReactDOMServer*Hydration / SelectiveHydration | hydration | 🔶 | partial (existing hydration tests) |
| ReactDOMServer*Hydration / SelectiveHydration | hydration | ✅ | already covered natively: ~30 hydration test/fuzz funcs in internal/runtime (hydration_test.go, hydration_helper_gap_test.go, hydration_roundtrip_fuzz_test.go) |

## react (core)

Expand Down