svelte/test/runtime/samples/spread-element-input-value-undefined/_config.js

export default {
	async test({ assert, component, target, window }) {
		const input = target.querySelector("input");
		component.value = undefined;

		assert.equal(input.value, "undefined");

		component.value = "foobar";

		assert.equal(input.value, "foobar");
	}
};