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Merge pull request #4364 from preactjs/feat/mathml
feat: Support MathML namespace
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| import { createElement, Component, render } from 'preact'; | ||
| import { setupRerender } from 'preact/test-utils'; | ||
| import { setupScratch, teardown } from '../_util/helpers'; | ||
|
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| /** @jsx createElement */ | ||
|
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| describe('mathml', () => { | ||
| let scratch; | ||
|
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||
| beforeEach(() => { | ||
| scratch = setupScratch(); | ||
| }); | ||
|
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| afterEach(() => { | ||
| teardown(scratch); | ||
| }); | ||
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| it('should render with the correct namespace URI', () => { | ||
| render(<math />, scratch); | ||
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| let namespace = scratch.querySelector('math').namespaceURI; | ||
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| expect(namespace).to.equal('http://www.w3.org/1998/Math/MathML'); | ||
| }); | ||
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| it('should render children with the correct namespace URI', () => { | ||
| render( | ||
| <math> | ||
| <mrow /> | ||
| </math>, | ||
| scratch | ||
| ); | ||
|
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| let namespace = scratch.querySelector('mrow').namespaceURI; | ||
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| expect(namespace).to.equal('http://www.w3.org/1998/Math/MathML'); | ||
| }); | ||
|
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| it('should inherit correct namespace URI from parent', () => { | ||
| const math = document.createElementNS( | ||
| 'http://www.w3.org/1998/Math/MathML', | ||
| 'math' | ||
| ); | ||
| scratch.appendChild(math); | ||
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| render(<mrow />, scratch.firstChild); | ||
|
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| let namespace = scratch.querySelector('mrow').namespaceURI; | ||
| expect(namespace).to.equal('http://www.w3.org/1998/Math/MathML'); | ||
| }); | ||
|
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| it('should inherit correct namespace URI from parent upon updating', () => { | ||
| setupRerender(); | ||
|
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| const math = document.createElementNS( | ||
| 'http://www.w3.org/1998/Math/MathML', | ||
| 'math' | ||
| ); | ||
| scratch.appendChild(math); | ||
|
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| class App extends Component { | ||
| state = { show: true }; | ||
| componentDidMount() { | ||
| // eslint-disable-next-line | ||
| this.setState({ show: false }, () => { | ||
| expect(scratch.querySelector('mo').namespaceURI).to.equal( | ||
| 'http://www.w3.org/1998/Math/MathML' | ||
| ); | ||
| }); | ||
| } | ||
| render() { | ||
| return this.state.show ? <mi>1</mi> : <mo>2</mo>; | ||
| } | ||
| } | ||
|
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| render(<App />, scratch.firstChild); | ||
| }); | ||
|
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| it('should transition from DOM to MathML and back', () => { | ||
| render( | ||
| <div> | ||
| <math> | ||
| <msup> | ||
| <mi>c</mi> | ||
| <mn>2</mn> | ||
| </msup> | ||
| </math> | ||
| </div>, | ||
| scratch | ||
| ); | ||
|
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| expect(scratch.firstChild).to.be.an('HTMLDivElement'); | ||
| expect(scratch.firstChild.firstChild).to.be.an('MathMLElement'); | ||
| }); | ||
| }); |
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