refactor: transformHArgs -> transformVNodeArgs

This commit is contained in:
Evan You
2020-03-23 16:54:28 -04:00
parent cba2f1aadb
commit 455a1534c9
5 changed files with 99 additions and 101 deletions

View File

@@ -1,11 +1,9 @@
import { h, transformHArgs, resetTransformHArgs } from '../src/h'
import { h } from '../src/h'
import { createVNode } from '../src/vnode'
import { ComponentInternalInstance } from '@vue/runtime-core'
import { createApp } from '@vue/runtime-dom'
// Since h is a thin layer on top of createVNode, we are only testing its
// own logic here. Details of vnode creation is tested in vnode.spec.ts.
const testH = () => {
describe('renderer: h', () => {
test('type only', () => {
expect(h('div')).toMatchObject(createVNode('div'))
})
@@ -59,62 +57,4 @@ const testH = () => {
})
)
})
}
describe('renderer: h', testH)
describe('renderer: transformHArgs', () => {
describe('no-op pass-through', () => {
beforeAll(() => {
transformHArgs((hArgs: unknown[]) => hArgs)
})
afterAll(resetTransformHArgs)
testH()
})
describe('args is used directly, without merging', () => {
beforeAll(() => {
transformHArgs(() => ['h1', 'Hello World'])
})
afterAll(resetTransformHArgs)
test('nodes become an h1 with text inside', () => {
expect(h('div')).toMatchObject(createVNode('h1', null, 'Hello World'))
})
test('resetting transformHArgs turns things back to normal', () => {
expect(h('div')).toMatchObject(createVNode('h1', null, 'Hello World'))
resetTransformHArgs()
expect(h('div')).toMatchObject(createVNode('div'))
})
})
test('receives component instance as the 2nd arg', () => {
transformHArgs((_: unknown[], instance: ComponentInternalInstance) => {
return ['h1', instance.type.name] // <h1>{{ name }}</h1>
})
const vm = createApp({
// this will be the name of the component in the h1
name: 'Root Component',
render() {
return h({
// this code will never execute,
// because it is overridden by the transformHArgs method
render() {
return h('h2', 'Stub Text')
}
})
}
})
// we need to mount everything so that the instance passed to
// transformHArgs isn't null
vm.mount('body')
expect(document.body.outerHTML).toContain('<h1>Root Component</h1>')
})
})