vue3-yuanma/packages/runtime-core/__tests__/apiSetupHelpers.spec.ts
2021-06-26 21:11:57 -04:00

93 lines
2.2 KiB
TypeScript

import {
defineComponent,
h,
nodeOps,
render,
SetupContext
} from '@vue/runtime-test'
import {
defineEmits,
defineProps,
defineExpose,
withDefaults,
useAttrs,
useSlots,
mergeDefaults
} from '../src/apiSetupHelpers'
describe('SFC <script setup> helpers', () => {
test('should warn runtime usage', () => {
defineProps()
expect(`defineProps() is a compiler-hint`).toHaveBeenWarned()
defineEmits()
expect(`defineEmits() is a compiler-hint`).toHaveBeenWarned()
defineExpose()
expect(`defineExpose() is a compiler-hint`).toHaveBeenWarned()
withDefaults({}, {})
expect(`withDefaults() is a compiler-hint`).toHaveBeenWarned()
})
test('useSlots / useAttrs (no args)', () => {
let slots: SetupContext['slots'] | undefined
let attrs: SetupContext['attrs'] | undefined
const Comp = {
setup() {
slots = useSlots()
attrs = useAttrs()
return () => {}
}
}
const passedAttrs = { id: 'foo' }
const passedSlots = {
default: () => {},
x: () => {}
}
render(h(Comp, passedAttrs, passedSlots), nodeOps.createElement('div'))
expect(typeof slots!.default).toBe('function')
expect(typeof slots!.x).toBe('function')
expect(attrs).toMatchObject(passedAttrs)
})
test('useSlots / useAttrs (with args)', () => {
let slots: SetupContext['slots'] | undefined
let attrs: SetupContext['attrs'] | undefined
let ctx: SetupContext | undefined
const Comp = defineComponent({
setup(_, _ctx) {
slots = useSlots()
attrs = useAttrs()
ctx = _ctx
return () => {}
}
})
render(h(Comp), nodeOps.createElement('div'))
expect(slots).toBe(ctx!.slots)
expect(attrs).toBe(ctx!.attrs)
})
test('mergeDefaults', () => {
const merged = mergeDefaults(
{
foo: null,
bar: { type: String, required: false }
},
{
foo: 1,
bar: 'baz'
}
)
expect(merged).toMatchObject({
foo: { default: 1 },
bar: { type: String, required: false, default: 'baz' }
})
mergeDefaults({}, { foo: 1 })
expect(
`props default key "foo" has no corresponding declaration`
).toHaveBeenWarned()
})
})