78 lines
2.3 KiB
TypeScript
78 lines
2.3 KiB
TypeScript
import { patchStyle } from '../../src/modules/style'
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describe(`module style`, () => {
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it('string', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, 'color:red')
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expect(el.style.cssText.replace(/\s/g, '')).toBe('color:red;')
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})
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it('plain object', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, { color: 'red' })
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expect(el.style.cssText.replace(/\s/g, '')).toBe('color:red;')
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})
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it('camelCase', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, { marginRight: '10px' })
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expect(el.style.cssText.replace(/\s/g, '')).toBe('margin-right:10px;')
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})
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it('remove if falsy value', () => {
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const el = document.createElement('div')
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patchStyle(el, { color: 'red' }, { color: undefined })
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expect(el.style.cssText.replace(/\s/g, '')).toBe('')
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})
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it('!important', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, { color: 'red !important' })
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expect(el.style.cssText.replace(/\s/g, '')).toBe('color:red!important;')
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})
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it('camelCase with !important', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, { marginRight: '10px !important' })
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expect(el.style.cssText.replace(/\s/g, '')).toBe(
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'margin-right:10px!important;'
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)
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})
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it('object with multiple entries', () => {
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const el = document.createElement('div')
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patchStyle(el, {}, { color: 'red', marginRight: '10px' })
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expect(el.style.getPropertyValue('color')).toBe('red')
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expect(el.style.getPropertyValue('margin-right')).toBe('10px')
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})
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// JSDOM doesn't support custom properties on style object so we have to
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// mock it here.
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function mockElementWithStyle() {
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const store: any = {}
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return {
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style: {
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WebkitTransition: '',
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setProperty(key: string, val: string) {
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store[key] = val
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},
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getPropertyValue(key: string) {
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return store[key]
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}
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}
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}
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}
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it('CSS custom properties', () => {
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const el = mockElementWithStyle()
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patchStyle(el as any, {}, { '--theme': 'red' } as any)
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expect(el.style.getPropertyValue('--theme')).toBe('red')
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})
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it('auto vendor prefixing', () => {
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const el = mockElementWithStyle()
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patchStyle(el as any, {}, { transition: 'all 1s' })
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expect(el.style.WebkitTransition).toBe('all 1s')
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})
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})
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