How to provide an array in getStaticPaths?

I'm learning nextJS and trying to use dynamic routes with a catch all route. However I'm running into a basic problem, I'm not sure how to supply the data as an array in getStaticPaths.

This is my current code:

import Link from 'next/link'

function test({ variable }) {
    return (
        <>
            <div>
                <h1>{variable.var}</h1>

                <Link href="/"><a>← Back</a></Link>
            </div>
        </>
    )
}

export async function getStaticProps({ params }) {
    const variable = params.variable
    return {
        props: {
            variable,
        },
    }
}

export async function getStaticPaths() {
    return {
        fallback: false,
        paths: [
            {
                params: {
                    variable: 'testi'
                }
            },
        ]
    }
}


export default test

And i'm getting the error:

Error: A required parameter (variable) was not provided as an array in getStaticPaths for /test/[...variable]

Any ideas?

Edit: Forgot to add, my current file name is [...variable].js