svelte/test/runtime/samples/prop-const/_config.js

export default {
	props: {
		a: 3,
		b: 4
	},

	html: `
		<p>a: 3</p>
		<p>b: 2</p>
	`,

	async test({ assert, component, target }) {
		await component.$set({
			a: 5,
			b: 6
		});

		assert.htmlEqual(target.innerHTML, `
			<p>a: 5</p>
			<p>b: 2</p>
		`);
	}
};