import { expect, test } from "vitest"

import { fromPromiseAsync, fromPromiseSync, signal, toPromise } from "#Source/reactor/index.ts"

test("fromPromiseAsync operator should work correctly", async () => {
  const a = await fromPromiseAsync({ target: Promise.resolve(42) })
  expect(a.get()).toBe(42)
})

test("fromPromiseSync operator should work correctly", async () => {
  const a = fromPromiseSync({ target: Promise.resolve(42) })
  const aPromise = toPromise({ target: a })
  const value = await aPromise
  expect(value).toBe(42)
})

test("toPromise operator should work correctly", async () => {
  const a = signal(() => 0)

  const aPromise = toPromise({ target: a })
  a.set(1)
  const value1 = await aPromise
  expect(value1).toBe(1)

  const aPromise2 = toPromise({ target: a })
  a.set(2)
  const value2 = await aPromise2
  expect(value2).toBe(2)
  a.set(3)
  expect(value2).toBe(2)
})