svelte/test/runtime/samples/action-body/_config.js

export default {
	html: '<div></div>',

	async test({ assert, target, window }) {
		const enter = new window.MouseEvent('mouseenter');
		const leave = new window.MouseEvent('mouseleave');

		await window.document.body.dispatchEvent(enter);
		assert.htmlEqual(target.innerHTML, `
			<div>
				<div class="tooltip">Perform an Action</div>
			</div>
		`);

		await window.document.body.dispatchEvent(leave);
		assert.htmlEqual(target.innerHTML, '<div></div>');
	}
};