@atomic-testing/react-19/dist/index.mjs

Adapter for integrating [Atomic Testing](https://atomic-testing.dev) with [React 19](https://react.dev). It maps React components to the core scene part APIs.

import { createRoot } from "react-dom/client";
import { TestEngine, byAttribute } from "@atomic-testing/core";
import { ReactInteractor } from "@atomic-testing/react-core";
import { act } from "@testing-library/react";

//#region src/createTestEngine.ts
let _rootId = 0;
function getNextRootElementId() {
	return `${_rootId++}`;
}
const rootElementAttributeName = "data-atomic-testing-react";
/**
* Create test engine for React 18 or later, for React 17 or before, use createLegacyTestEngine
* This function takes a react node and render it into a container element.  For rendered
* components, use createRenderedTestEngine
* @param node The React node to render
* @param partDefinitions The scene part definitions
* @param option
* @returns The test engine
*/
function createTestEngine(node, partDefinitions, option) {
	const rootEl = option?.rootElement ?? document.body;
	const container = rootEl.appendChild(document.createElement("div"));
	const root = createRoot(container);
	const rootId = getNextRootElementId();
	container.setAttribute(rootElementAttributeName, rootId);
	act(() => root.render(node));
	const cleanup = () => {
		act(() => root.unmount());
		rootEl.removeChild(container);
		return Promise.resolve();
	};
	const engine = new TestEngine(byAttribute(rootElementAttributeName, rootId), new ReactInteractor(), { parts: partDefinitions }, cleanup);
	return engine;
}
/**
* Create test engine for React 18 or later, for React 17 or before, use createRenderedLegacyTestEngine
* This function takes an html element purportedly rendered by React and create a test engine for it, it
* can be useful in environment such as Storybook where Storybook renders the component and the test
* @param rootElement The React node to render
* @param partDefinitions The scene part definitions
* @param option
* @returns The test engine
*/
function createRenderedTestEngine(rootElement, partDefinitions, _option) {
	const rootId = getNextRootElementId();
	rootElement.setAttribute(rootElementAttributeName, rootId);
	const cleanup = () => {
		rootElement.removeAttribute(rootElementAttributeName);
		return Promise.resolve();
	};
	const engine = new TestEngine(byAttribute(rootElementAttributeName, rootId), new ReactInteractor(), { parts: partDefinitions }, cleanup);
	return engine;
}

//#endregion
export { createRenderedTestEngine, createTestEngine };
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