95 lines
3 KiB
JavaScript
95 lines
3 KiB
JavaScript
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import addStylesClient from '../lib/addStylesClient'
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import addStylesServer from '../lib/addStylesServer'
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const mockedList = [
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[1, 'h1 { color: red; }', ''],
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[1, 'p { color: green; }', ''],
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[2, 'span { color: blue; }', ''],
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[2, 'span { color: blue; }', 'print']
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]
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test('addStylesClient (dev)', () => {
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const update = addStylesClient('foo', mockedList, false)
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assertStylesMatch(mockedList)
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const mockedList2 = mockedList.slice(1, 3)
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update(mockedList2)
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assertStylesMatch(mockedList2)
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update()
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expect(document.querySelectorAll('style').length).toBe(0)
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})
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test('addStylesClient (prod)', () => {
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const update = addStylesClient('foo', mockedList, true)
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assertStylesMatch(mockedList)
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const mockedList2 = mockedList.slice(2)
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update(mockedList2)
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assertStylesMatch(mockedList2)
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update()
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expect(document.querySelectorAll('style').length).toBe(0)
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})
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test('addStylesClient (dev + ssr)', () => {
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mockSSRTags(mockedList, 'foo')
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const update = addStylesClient('foo', mockedList, false)
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assertStylesMatch(mockedList)
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update()
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expect(document.querySelectorAll('style').length).toBe(0)
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})
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test('addStylesClient (prod + ssr)', () => {
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mockProdSSRTags(mockedList, 'foo')
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const update = addStylesClient('foo', mockedList, true)
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expect(document.querySelectorAll('style').length).toBe(1)
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})
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test('addStylesServer (dev)', () => {
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const context = global.__VUE_SSR_CONTEXT__ = {}
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addStylesServer('foo', mockedList, false)
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expect(context.styles).toBe(
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`<style data-vue-ssr-id="foo:0">h1 { color: red; }</style>` +
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`<style data-vue-ssr-id="foo:1">p { color: green; }</style>` +
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`<style data-vue-ssr-id="foo:2">span { color: blue; }</style>` +
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`<style data-vue-ssr-id="foo:3" media="print">span { color: blue; }</style>`
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)
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})
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test('addStylesServer (prod)', () => {
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const context = global.__VUE_SSR_CONTEXT__ = {}
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addStylesServer('foo', mockedList, true)
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expect(context.styles).toBe(
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`<style data-vue-ssr-id="foo:0 foo:1 foo:2">` +
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`h1 { color: red; }\np { color: green; }\nspan { color: blue; }` +
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`</style>` +
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`<style data-vue-ssr-id="foo:3" media="print">span { color: blue; }</style>`
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)
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})
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// --- helpers ---
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function assertStylesMatch (list) {
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const styles = document.querySelectorAll('style')
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expect(styles.length).toBe(list.length)
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;[].forEach.call(styles, (style, i) => {
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expect(style.textContent.indexOf(list[i][1]) > -1).toBe(true)
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})
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}
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function mockSSRTags (list, parentId) {
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list.forEach((item, i) => {
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const style = document.createElement('style')
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style.setAttribute('data-vue-ssr-id', `${parentId}:${i}`)
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style.textContent = item[1]
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if (item[2]) {
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style.setAttribute('media', item[2])
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}
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document.head.appendChild(style)
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})
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}
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function mockProdSSRTags (list, parentId) {
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const style = document.createElement('style')
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style.setAttribute('data-vue-ssr-id', list.map((item, i) => `${parentId}:${i}`).join(' '))
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style.textContent = list.map(item => item[1]).join('\n')
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document.head.appendChild(style)
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}
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