Nuxt/test/unit/wp.config.test.js

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import path from 'path'
import PerfLoader from '../../packages/builder/src/webpack/utils/perf-loader'
describe('webpack configuration', () => {
test('performance loader', () => {
const perfLoader = new PerfLoader({
dev: true,
build: {
parallel: true,
cache: true
}
})
const js = { name: 'js', poolTimeout: Infinity }
const css = { name: 'css', poolTimeout: Infinity }
expect(perfLoader.workerPools).toMatchObject({ js, css })
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perfLoader.warmup = jest.fn()
perfLoader.warmupAll()
expect(perfLoader.warmup).toHaveBeenCalledTimes(2)
expect(perfLoader.warmup).toHaveBeenCalledWith(js, [
require.resolve('babel-loader'),
require.resolve('@babel/preset-env')
])
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expect(perfLoader.warmup).toHaveBeenCalledWith(css, ['css-loader'])
const loaders = perfLoader.pool('js', { loader: 'test-perf-loader' })
const cacheDirectory = path.resolve('node_modules/.cache/cache-loader')
expect(loaders).toMatchObject([
{ loader: 'cache-loader', options: { cacheDirectory } },
{ loader: 'thread-loader', options: js },
{ loader: 'test-perf-loader' }
])
})
})