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Fix #54 - Breaks child.type comparisons #139

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Fix #54 - Breaks child.type comparisons #139

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64 changes: 64 additions & 0 deletions tests/index.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -64,3 +64,67 @@ test('render to static markup', () => {
const string = ReactDOMServer.renderToStaticMarkup(<MyComponent/>)
expect(string).toBe('<div>hi!</div>')
})

describe('React.children', () => {
test('count', () => {
let countOfChildren = null

const ExampleChildComponent = () => <div>hi :D</div>
ExampleChildComponent.whyDidYouRender = true

const ExampleComponent = ({children}) => {
countOfChildren = React.Children.count(children)
return (
<div>
{children}
</div>
)
}

ExampleComponent.whyDidYouRender = true

rtl.render(
<ExampleComponent>
<ExampleChildComponent>child_1</ExampleChildComponent>
<ExampleChildComponent>child_2</ExampleChildComponent>
<ExampleChildComponent>child_3</ExampleChildComponent>
</ExampleComponent>
)

expect(countOfChildren).toBe(3)
})

test('children types', () => {
let childrenTypes = null
const ExampleChildComponent = () => <div>hi :D</div>

ExampleChildComponent.whyDidYouRender = true

const ExampleComponent = ({children}) => {
childrenTypes = React.Children.map(children, child => {
return child.type
})
return (
<div>
{children}
</div>
)
}

ExampleComponent.whyDidYouRender = true

rtl.render(
<ExampleComponent>
<ExampleChildComponent>child_1</ExampleChildComponent>
<ExampleChildComponent>child_2</ExampleChildComponent>
<ExampleChildComponent>child_3</ExampleChildComponent>
</ExampleComponent>
)

expect(childrenTypes).toEqual([
ExampleChildComponent,
ExampleChildComponent,
ExampleChildComponent
])
})
})