svelte/test/runtime/samples/component-data-dynamic-shorthand/_config.js

export default {
	data: {
		foo: 42
	},

	html: `<div><p>foo: 42</p></div>`,

	test ( assert, component, target ) {
		component.set({
			foo: 99
		});

		assert.equal( target.innerHTML, `<div><p>foo: 99</p></div>` );

		component.teardown();
	}
};