44 lines
989 B
TypeScript
44 lines
989 B
TypeScript
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import {
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ref,
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h,
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render,
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nodeOps,
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serializeInner,
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nextTick,
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VNode
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} from '@vue/runtime-test'
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describe('renderer: component', () => {
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test('should update parent(hoc) component host el when child component self update', async () => {
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const value = ref(true)
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let parentVnode: VNode
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let childVnode1: VNode
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let childVnode2: VNode
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const Parent = {
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render: () => {
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// let Parent first rerender
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return (parentVnode = h(Child))
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}
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}
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const Child = {
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render: () => {
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return value.value
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? (childVnode1 = h('div'))
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: (childVnode2 = h('span'))
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}
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}
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const root = nodeOps.createElement('div')
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render(h(Parent), root)
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expect(serializeInner(root)).toBe(`<div></div>`)
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expect(parentVnode!.el).toBe(childVnode1!.el)
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value.value = false
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await nextTick()
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expect(serializeInner(root)).toBe(`<span></span>`)
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expect(parentVnode!.el).toBe(childVnode2!.el)
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})
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})
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