schlechtenburg/test/with-setup.ts

import { mount } from '@vue/test-utils';
import { defineComponent, Component } from 'vue'

export async function withSetup<T>(composable: () => T): Promise<T> {
  return new Promise((resolve) => {
    mount(defineComponent({
      setup() {
        resolve(composable());
        // suppress missing template warning
        return () => {}
      }
    }));
  });
}