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index.test.js
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index.test.js
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/* eslint-env jest */
import { join } from 'path'
import {
findPort,
killApp,
launchApp,
nextBuild,
nextStart,
} from 'next-test-utils'
import webdriver from 'next-webdriver'
const appDir = join(__dirname, '../')
let appPort
let app
const runTests = () => {
it('should not trigger unncessary rerenders when rewrites or middleware are used', async () => {
const browser = await webdriver(appPort, '/')
await new Promise((resolve) => setTimeout(resolve, 100))
expect(await browser.eval('window.__renders')).toEqual([undefined])
})
it('should rerender with the correct query parameter if present with rewrites', async () => {
const browser = await webdriver(appPort, '/rewrite')
await new Promise((resolve) => setTimeout(resolve, 100))
expect(await browser.eval('window.__renders')).toEqual([undefined, 'bar'])
})
}
describe('router rerender', () => {
describe('dev mode', () => {
beforeAll(async () => {
appPort = await findPort()
app = await launchApp(appDir, appPort)
})
afterAll(() => killApp(app))
runTests()
})
describe('production mode', () => {
beforeAll(async () => {
await nextBuild(appDir)
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(() => killApp(app))
runTests()
})
})