32 lines
1.0 KiB
TypeScript
32 lines
1.0 KiB
TypeScript
import { patchProp } from '../../src/patchProp'
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import { ElementWithTransition } from '../../src/components/Transition'
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import { svgNS } from '../../src/nodeOps'
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describe('runtime-dom: class patching', () => {
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test('basics', () => {
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const el = document.createElement('div')
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patchProp(el, 'class', null, 'foo')
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expect(el.className).toBe('foo')
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patchProp(el, 'class', null, null)
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expect(el.className).toBe('')
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})
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test('transition class', () => {
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const el = document.createElement('div') as ElementWithTransition
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el._vtc = new Set(['bar', 'baz'])
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patchProp(el, 'class', null, 'foo')
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expect(el.className).toBe('foo bar baz')
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patchProp(el, 'class', null, null)
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expect(el.className).toBe('bar baz')
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delete el._vtc
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patchProp(el, 'class', null, 'foo')
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expect(el.className).toBe('foo')
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})
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test('svg', () => {
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const el = document.createElementNS(svgNS, 'svg')
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patchProp(el, 'class', null, 'foo', true)
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expect(el.getAttribute('class')).toBe('foo')
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})
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})
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