svelte/test/runtime/samples/component-binding-nested/_config.js

export default {
	skip_if_ssr: true, // TODO delete this line, once binding works

	props: {
		x: 'initial'
	},

	html: `
		<p>x: initial</p>
		<button class="foo">foo</button>
		<p>foo x: initial</p>
		<button class="bar">bar</button>
		<p>bar x: initial</p>
		<button class="baz">baz</button>
		<p>baz x: initial</p>
	`,

	async test({ assert, component, target, window }) {
		const click = new window.MouseEvent('click');
		const buttons = [...target.querySelectorAll('button')];

		await buttons[0].dispatchEvent(click);

		assert.equal(component.x, 'p');
		assert.htmlEqual(target.innerHTML, `
			<p>x: p</p>
			<button class="foo">foo</button>
			<p>foo x: p</p>
			<button class="bar">bar</button>
			<p>bar x: p</p>
			<button class="baz">baz</button>
			<p>baz x: p</p>
		`);

		await buttons[1].dispatchEvent(click);

		assert.equal(component.x, 'q');
		assert.htmlEqual(target.innerHTML, `
			<p>x: q</p>
			<button class="foo">foo</button>
			<p>foo x: q</p>
			<button class="bar">bar</button>
			<p>bar x: q</p>
			<button class="baz">baz</button>
			<p>baz x: q</p>
		`);

		await buttons[2].dispatchEvent(click);

		assert.equal(component.x, 'r');
		assert.htmlEqual(target.innerHTML, `
			<p>x: r</p>
			<button class="foo">foo</button>
			<p>foo x: r</p>
			<button class="bar">bar</button>
			<p>bar x: r</p>
			<button class="baz">baz</button>
			<p>baz x: r</p>
		`);
	}
};