svelte/test/runtime/samples/if-block-conservative-update/_config.js

let count = 0;

export default {
	props: {
		foo: 'potato',
		fn: () => {
			count += 1;
			return true;
		}
	},

	html: `<p>potato</p>`,

	test({ assert, component, target }) {
		assert.equal(count, 1);

		component.foo = 'soup';
		assert.equal(count, 1);

		assert.htmlEqual(target.innerHTML, `<p>soup</p>`);
	}
};