svelte/test/runtime/samples/binding-store/_config.js

export default {
	html: `
		<input>
		<p>hello world</p>
	`,

	ssrHtml: `
		<input value="world">
		<p>hello world</p>
	`,

	async test({ assert, component, target, window }) {
		const input = target.querySelector('input');
		assert.equal(input.value, 'world');

		const event = new window.Event('input');

		const names = [];
		const unsubscribe = component.name.subscribe(name => {
			names.push(name);
		});

		input.value = 'everybody';
		await input.dispatchEvent(event);

		assert.htmlEqual(target.innerHTML, `
			<input>
			<p>hello everybody</p>
		`);

		await component.name.set('goodbye');
		assert.equal(input.value, 'goodbye');
		assert.htmlEqual(target.innerHTML, `
			<input>
			<p>hello goodbye</p>
		`);

		assert.deepEqual(names, ['world', 'everybody', 'goodbye']);
		unsubscribe();
	},
};