Overview

Test Explorer fails to build the tree if the "satisfies" keyword is included in the test code.
This may be because the use of "satisfies" requires TypeScript 4.9 or later.
(The message "parse error" is logged.)

example test code:

import { describe, expect } from 'vitest'

type Person = {
  name: string
  age: number
}

describe('test', () => {
  const person = {
    name: 'John',
    age: 20,
  } satisfies Person
  expect(person.name).toBe('John')
})

Changes

• Bump typescript version from 4.6 to 4.9
• Also upgrade related packages
  • @babel/parser, @babel/types : 7.20 required to use TypeScript 4.9
    • https://babeljs.io/blog/2022/10/27/7.20.0
  • @types/node : Follow AbortSignal type updates.
    • Issue with TS4.9 - 'AbortSignal' was also declared here. microsoft/TypeScript#51567 (comment)
• Added test case.
• Fix some type errors to pass npx tsc --noEmit