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/* eslint-env jest */
import { ImageResponse } from 'next/og'
import React from 'react'
describe('new ImageResponse()', () => {
const exactHeader = 'public, max-age=3600, s-maxage=3600'
it('should merge object literal headers correctly', () => {
const res = new ImageResponse(
React.createElement(
'div',
{ style: { width: 10, height: 10 } },
'ImageResponse'
),
{
width: 10,
height: 10,
headers: {
'Cache-Control': exactHeader,
},
}
)
expect(res.headers.get('Content-Type')).toBeTruthy()
expect(res.headers.get('Cache-Control')).toBe(exactHeader)
})
it('should merge Headers instance correctly', () => {
const res = new ImageResponse(
React.createElement(
'div',
{ style: { width: 10, height: 10 } },
'ImageResponse'
),
{
width: 10,
height: 10,
headers: new Headers({
'Cache-Control': exactHeader,
}),
}
)
expect(res.headers.get('Content-Type')).toBeTruthy()
expect(res.headers.get('Cache-Control')).toBe(exactHeader)
})
it('should have default Cache-Control header', () => {
const res = new ImageResponse(
React.createElement(
'div',
{ style: { width: 10, height: 10 } },
'ImageResponse'
),
{
width: 10,
height: 10,
}
)
expect(res.headers.get('Cache-Control')).toBeTruthy()
})
})
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