Function resolveScopeFixtureValue

packages/runner/src/fixture.ts:458–497

(
  fixtures: TestFixtures,
  suite: Suite,
  fixture: TestFixtureItem,
)

const scopedFixturePromiseCache = new WeakMap<TestFixtureItem, Promise<unknown>>()

async function resolveScopeFixtureValue(
  fixtures: TestFixtures,
  suite: Suite,
  fixture: TestFixtureItem,
) {
  const workerContext = fixtures.getWorkerContext()
  const fileContext = fixtures.getFileContext(suite.file)
  const fixtureContext = fixture.scope === 'worker' ? workerContext : fileContext

  if (!isFixtureFunction(fixture.value)) {
    fixtureContext[fixture.name] = fixture.value
    return fixture.value
  }

  if (fixture.name in fixtureContext) {
    return fixtureContext[fixture.name]
  }

  if (scopedFixturePromiseCache.has(fixture)) {
    return scopedFixturePromiseCache.get(fixture)!
  }

  if (!cleanupFnArrayMap.has(fixtureContext)) {
    cleanupFnArrayMap.set(fixtureContext, [])
  }
  const cleanupFnFileArray = cleanupFnArrayMap.get(fixtureContext)!

  const promise = resolveFixtureFunction(
    fixture.value,
    fixture.name,
    fixture.scope === 'file' ? { ...workerContext, ...fileContext } : fixtureContext,
    cleanupFnFileArray,
  ).then((value) => {
    fixtureContext[fixture.name] = value
    scopedFixturePromiseCache.delete(fixture)
    return value
  })
  scopedFixturePromiseCache.set(fixture, promise)
  return promise
}

async function resolveFixtureFunction(
  fixtureFn: (