refactor: make fireEvent async by default (#1844)

Author: mdjastrzebski

.gemini/settings.json

@@ -0,0 +1,5 @@
+{
+  "context": {
+    "contextFileName": "AGENTS.md"
+  }
+}

AGENTS.md

@@ -0,0 +1,48 @@
+# Code Assistant Context
+
+This document provides context for the any code assistant to understand the `@testing-library/react-native` project.
+
+## Project Overview
+
+`@testing-library/react-native` (RNTL) provides a set of utilities for testing React Native components. It is designed to facilitate writing tests that resemble how users interact with the application, avoiding implementation details.
+
+- **Core Principle:** "The more your tests resemble the way your software is used, the more confidence they can give you."
+- **Tech Stack:** TypeScript, React Native, Jest.
+- **Architecture:** The library simulates the React Native runtime on top of `universal-test-renderer`.
+
+## Building and Running
+
+The project uses `yarn` for dependency management and script execution.
+
+- **Installation:** `yarn install`
+- **Run Tests:** `yarn test` (Runs Jest)
+- **Run Tests (CI):** `yarn test:ci` (Runs Jest with worker limits)
+- **Lint Code:** `yarn lint` (Runs ESLint on `src`)
+- **Type Check:** `yarn typecheck` (Runs TypeScript compiler)
+- **Format Check:** `yarn prettier`
+- **Validate All:** `yarn validate` (Runs Prettier, ESLint, Typecheck, and Tests in sequence)
+- **Build Project:** `yarn build` (Cleans, builds JS with Babel, builds TS types, and copies Flow types)
+
+## Development Conventions
+
+- **Code Style:**
+  - **Linting:** ESLint is configured with `@callstack/eslint-config` and `typescript-eslint`. It enforces strict rules, including `no-console` and consistent type imports.
+  - **Formatting:** Prettier is used for code formatting (single quotes, trailing commas).
+  - **Imports:** Sorted using `eslint-plugin-simple-import-sort`.
+
+- **Testing:**
+  - **Framework:** Jest with `react-native` preset.
+  - **Location:** Tests are located within `src`, typically co-located in `__tests__` directories.
+  - **Setup:** `jest-setup.ts` configures the test environment. `src/index.ts` automatically configures cleanup after each test unless skipped.
+  - **Coverage:** Collected from `src`, excluding tests.
+
+- **Commits & Releases:**
+  - **Commits:** Follow the **Conventional Commits** specification (e.g., `fix:`, `feat:`, `chore:`). This is enforced and used for changelog generation.
+  - **Releases:** Managed via `release-it`.
+
+- **File Structure:**
+  - `src/`: Source code.
+  - `src/pure.ts`: Core logic without side effects (no auto-cleanup).
+  - `src/index.ts`: Main entry point, re-exports `pure` and adds side effects (auto-cleanup).
+  - `examples/`: Example React Native applications using the library.
+  - `website/`: Documentation website.

src/__tests__/act.test.tsx

@@ -31,12 +31,12 @@ test('rerender should trigger useEffect', () => {
   expect(effectCallback).toHaveBeenCalledTimes(2);
 });
 
-test('fireEvent should trigger useState', () => {
+test('fireEvent should trigger useState', async () => {
   render(<Counter />);
   const counter = screen.getByText(/Total count/i);
 
   expect(counter.props.children).toEqual('Total count: 0');
-  fireEvent.press(counter);
+  await fireEvent.press(counter);
   expect(counter.props.children).toEqual('Total count: 1');
 });