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enzyme.md
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84
enzyme.md
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---
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title: Enzyme
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category: React
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---
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## ReactWrapper
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```js
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wrap = shallow(<MyComponent />) // => ReactWrapper (shallow)
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wrap = mount(<MyComponent />) // => ReactWrapper (full)
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```
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### Traversing
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```js
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wrap.find('button') // => ReactWrapper
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wrap.filter('button') // => ReactWrapper
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wrap.not('span') // => ReactWrapper (inverse of filter())
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wrap.children() // => ReactWrapper
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wrap.parent() // => ReactWrapper
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wrap.closest('div') // => ReactWrapper
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wrap.childAt(0) // => ReactWrapper
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wrap.at(0) // => ReactWrapper
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wrap.first() // => ReactWrapper
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wrap.last() // => ReactWrapper
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```
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```js
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wrap.get(0) // => ReactElement
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wrap.getNode() // => ReactElement
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wrap.getNodes() // => Array<ReactElement>
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wrap.getDOMNode() // => DOMComponent
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```
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### Actions
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```js
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wrap.simulate('click')
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```
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### React components
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```js
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wrap.setState({ ... })
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wrap.setProps({ ... })
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wrap.setContext({ ... })
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wrap.state() // => Any (get state)
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wrap.props() // => object (get props)
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wrap.context() // => Any (get context)
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wrap.instance() // => ReactComponent
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```
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### Mount
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```js
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wrap.mount()
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wrap.unmount()
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wrap.update() // calls forceUpdate()
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```
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### Tests
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```js
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wrap.debug() // => string
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wrap.html() // => string
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wrap.text() // => string
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wrap.type() // => string | function
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wrap.name() // => string
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wrap.is('.classname') // => boolean
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wrap.hasClass('class') // => boolean
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wrap.exists() // => boolean
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wrap.contains(<div />) // => boolean
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wrap.contains([ <div /> ]) // => boolean
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wrap.containsMatchingElement(<div />) // => boolean
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wrap.containsAllMatchingElements([ <div /> ]) // => boolean
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wrap.containsAnyMatchingElements([ <div /> ]) // => boolean
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```
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## References
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- <https://github.com/airbnb/enzyme/blob/master/docs/api/mount.md>
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html-meta.md
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html-meta.md
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article:tag
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```
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### Favicon
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```html
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<link rel="icon" type="image/png" href="/assets/favicon.png">
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```
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### Web app
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```html
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<meta name="mobile-web-app-capable" content="yes">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<meta name="apple-mobile-web-app-status-bar-style" content="black"> <!-- black | black-translucent | default -->
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```
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### Apple-only
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```html
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<meta name="format-detection" content="telephone=no">
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<meta name='format-detection' content='telephone=no'>
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```
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## Progressive web apps
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### Add to homescreen
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```html
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<meta name='mobile-web-app-capable' content='yes'>
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<meta name='apple-mobile-web-app-capable' content='yes'>
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<meta name='apple-mobile-web-app-status-bar-style' content='black'> <!-- black | black-translucent | default -->
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```
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### [Theme color](https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android)
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```html
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<meta name='theme-color' content='#ff00ff'>
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```
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### [Manifest](https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/)
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```html
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<link rel='manifest' href='/manifest.json'>
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```
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### [Icons](https://developers.google.com/web/fundamentals/design-and-ui/browser-customization/)
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```html
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<!-- Minimal -->
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<link rel='icon' type='image/png' href='favicon@32.png'>
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<link rel='icon' sizes='192x192' href='icon@192.png'>
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<link rel='apple-touch-icon' href='icon@152.png'>
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<meta name='msapplication-square310x310logo' content='icon@310.png'>
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<!-- Apple -->
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<link rel='apple-touch-icon' href='touch-icon-iphone.png'>
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<link rel='apple-touch-icon' sizes='76x76' href='touch-icon-ipad.png'>
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<link rel='apple-touch-icon' sizes='120x120' href='touch-icon-iphone-retina.png'>
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<link rel='apple-touch-icon' sizes='152x152' href='touch-icon-ipad-retina.png'>
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<!-- Microsoft -->
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<meta name='msapplication-square70x70logo' content='icon_smalltile.png'>
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<meta name='msapplication-square150x150logo' content='icon_mediumtile.png'>
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<meta name='msapplication-wide310x150logo' content='icon_widetile.png'>
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```
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Chrome on Android recommends [192x192](https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android).
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### Reference
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* https://dev.twitter.com/docs/cards
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* https://developers.facebook.com/docs/opengraphprotocol/#types
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* <https://dev.twitter.com/docs/cards>
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* <https://developers.facebook.com/docs/opengraphprotocol/#types>
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