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test(types): add test for ref/shallowRef generic casting

This commit is contained in:
Evan You 2023-12-16 13:46:11 +08:00
parent 9a571582b5
commit d0b849ac39
1 changed files with 16 additions and 0 deletions
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16
packages/dts-test/ref.test-d.ts
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@ -163,6 +163,17 @@ const state = reactive({
expectType<string>(state.foo.label) expectType<string>(state.foo.label)
describe('ref with generic', <T extends { name: string }>() => {
const r = {} as T
const s = ref(r)
expectType<string>(s.value.name)
const rr = {} as MaybeRef<T>
// should at least allow casting
const ss = ref(rr) as Ref<T>
expectType<string>(ss.value.name)
})
// shallowRef // shallowRef
type Status = 'initial' | 'ready' | 'invalidating' type Status = 'initial' | 'ready' | 'invalidating'
const shallowStatus = shallowRef<Status>('initial') const shallowStatus = shallowRef<Status>('initial')
@ -206,6 +217,11 @@ describe('shallowRef with generic', <T extends { name: string }>() => {
const s = shallowRef(r) const s = shallowRef(r)
expectType<string>(s.value.name) expectType<string>(s.value.name)
expectType<ShallowRef<T>>(shallowRef(r)) expectType<ShallowRef<T>>(shallowRef(r))
const rr = {} as MaybeRef<T>
// should at least allow casting
const ss = shallowRef(rr) as Ref<T> | ShallowRef<T>
expectType<string>(ss.value.name)
}) })
{ {