WRNexusJS/FIXES-0.7.0-R4-HAPPY-DOM-EVENT-TYPES.md

WRNexusJS 0.7.0 R4 — Happy DOM Event Type Correction

Problem

packages/validation/test/validation.test.ts returned the browser DOM Event type from its synthetic event helper. Happy DOM elements require Happy DOM's own event class, so strict TypeScript reported two incompatible dispatchEvent() calls.

Fix

The helper now derives its event type directly from Happy DOM's own document.dispatchEvent parameter:

type HappyDOMEvent = Parameters<Window["document"]["dispatchEvent"]>[0];
type HappyDOMEventConstructor = new (type: string, init?: EventInit) => HappyDOMEvent;

function windowEvent(win: Window, type: string, init?: EventInit): HappyDOMEvent {
  const EventConstructor = (win as unknown as { Event: HappyDOMEventConstructor }).Event;
  return new EventConstructor(type, init);
}

This keeps browser DOM tests and Happy DOM tests type-safe without using an unsafe browser Event return type.

Workspace repair

The two .env files and temporary focused-typecheck files shown by check:workspace are local leftovers. Run bun run repair:workspace once before the security audit. The command preserves local .env contents while removing unsafe files from Git tracking.

Additional improvement

check:workspace now says would remove in check mode, instead of incorrectly implying files were already removed.