30 lines
825 B
JavaScript
30 lines
825 B
JavaScript
/* eslint-env jest */
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import { Component } from 'react'
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import { getDisplayName } from 'next/dist/shared/lib/utils'
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describe('getDisplayName', () => {
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it('gets the proper display name of a component', () => {
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class ComponentOne extends Component {
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render() {
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return null
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}
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}
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class ComponentTwo extends Component {
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static displayName = 'CustomDisplayName'
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render() {
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return null
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}
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}
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function FunctionalComponent() {
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return null
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}
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expect(getDisplayName(ComponentOne)).toBe('ComponentOne')
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expect(getDisplayName(ComponentTwo)).toBe('CustomDisplayName')
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expect(getDisplayName(FunctionalComponent)).toBe('FunctionalComponent')
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expect(getDisplayName(() => null)).toBe('Unknown')
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expect(getDisplayName('div')).toBe('div')
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})
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})
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