Jayphen

function deriveStatus(){}
const stateMachine = Machine(
  {
    id: 'package',
    initial: 'loading',
    context: { packageProduct: null, items: {}, price: {}, error: null },
    on: {
      UPDATE_ITEM: {
        actions: 'updateItems',
        target: 'validating',

Jayphen

// stores/location.ts

import { writable, derived } from "svelte/store";
import { beforeUpdate } from "svelte";

export interface LocationStore {
  current: Location | undefined;
  previous: Location | undefined;
}

Jayphen

// for when you REALLY need to test the props SomeComponent is rendered with (not recommended)

// create a mock that re-implements the default behaviour
// but allows us to spy on the props
jest.mock('components/SomeComponent', () => {
  const original = jest.requireActual('components/SomeComponent')

  return jest.fn(original.default)
})