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/* eslint-env jest */
import { getBlurImage } from 'next/dist/build/webpack/loaders/next-image-loader/blur'
import { readFile } from 'fs-extra'
import { join } from 'path'
const getImage = (filepath) => readFile(join(__dirname, filepath))
const tracing = () => ({
traceFn: (fn, ...args) => fn(...args),
traceAsyncFn: (fn, ...args) => fn(...args),
})
const context = { basePath: '', outputPath: '', isDev: false, tracing }
describe('getBlurImage', () => {
it('should return image for jpg', async () => {
const buffer = await getImage('./images/test.jpg')
const result = await getBlurImage(
buffer,
'jpeg',
{ width: 400, height: 400 },
context
)
expect(result).toBeObject()
expect(result.dataURL).toBeString()
})
it('should return undefined for animated webp', async () => {
const buffer = await getImage('./images/animated.webp')
const result = await getBlurImage(
buffer,
'webp',
{ width: 400, height: 400 },
context
)
expect(result).toBeObject()
expect(result.dataURL).toBeUndefined()
})
})
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