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index.test.js
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index.test.js
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/* eslint-env jest */
import glob from 'glob'
import fs from 'fs-extra'
import { join } from 'path'
import {
findPort,
launchApp,
killApp,
waitFor,
initNextServerScript,
nextBuild,
nextStart,
} from 'next-test-utils'
const appDir = join(__dirname, '..')
const warningText = `You are using a non-standard "NODE_ENV" value in your environment`
let appPort
let app
const startServer = async (optEnv = {}, opts) => {
const scriptPath = join(appDir, 'server.js')
appPort = appPort = await findPort()
const env = Object.assign({}, process.env, { PORT: `${appPort}` }, optEnv)
return initNextServerScript(
scriptPath,
/ready on/i,
env,
/ReferenceError: options is not defined/,
opts
)
}
describe('Non-Standard NODE_ENV', () => {
it('should not show the warning with no NODE_ENV set', async () => {
let output = ''
app = await launchApp(appDir, await findPort(), {
onStderr(msg) {
output += msg || ''
},
})
await waitFor(2000)
await killApp(app)
expect(output).not.toContain(warningText)
})
it('should not show the warning with NODE_ENV set to valid value', async () => {
let output = ''
app = await launchApp(appDir, await findPort(), {
env: {
NODE_ENV: 'development',
},
onStderr(msg) {
output += msg || ''
},
})
await waitFor(2000)
await killApp(app)
expect(output).not.toContain(warningText)
})
it('should not show the warning with NODE_ENV set to valid value (custom server)', async () => {
let output = ''
app = await startServer(
{
NODE_ENV: 'development',
},
{
onStderr(msg) {
output += msg || ''
},
}
)
await waitFor(2000)
await killApp(app)
expect(output).not.toContain(warningText)
})
it('should still DCE NODE_ENV specific code', async () => {
await nextBuild(appDir, undefined, {
env: {
NODE_ENV: 'test',
},
})
const staticFiles = glob.sync('**/*.js', {
cwd: join(appDir, '.next/static'),
})
expect(staticFiles.length).toBeGreaterThan(0)
for (const file of staticFiles) {
const content = await fs.readFile(
join(appDir, '.next/static', file),
'utf8'
)
if (content.match(/cannot find module/i)) {
throw new Error(`${file} contains module not found error`)
}
}
})
it('should show the warning with NODE_ENV set to invalid value', async () => {
let output = ''
app = await launchApp(appDir, await findPort(), {
env: {
NODE_ENV: 'abc',
},
onStderr(msg) {
output += msg || ''
},
})
await waitFor(2000)
await killApp(app)
expect(output).toContain(warningText)
})
it('should show the warning with NODE_ENV set to invalid value (custom server)', async () => {
let output = ''
app = await startServer(
{
NODE_ENV: 'abc',
},
{
onStderr(msg) {
output += msg || ''
},
}
)
await waitFor(2000)
await killApp(app)
expect(output).toContain(warningText)
})
it('should show the warning with NODE_ENV set to production with next dev', async () => {
let output = ''
app = await launchApp(appDir, await findPort(), {
env: {
NODE_ENV: 'production',
},
onStderr(msg) {
output += msg || ''
},
})
await waitFor(2000)
await killApp(app)
expect(output).toContain(warningText)
})
it('should show the warning with NODE_ENV set to development with next build', async () => {
const { stderr } = await nextBuild(appDir, [], {
env: {
NODE_ENV: 'development',
},
stderr: true,
})
expect(stderr).toContain(warningText)
})
it('should show the warning with NODE_ENV set to development with next start', async () => {
let output = ''
await nextBuild(appDir)
app = await nextStart(appDir, await findPort(), {
env: {
NODE_ENV: 'development',
},
onStderr(msg) {
output += msg || ''
},
})
await waitFor(2000)
await killApp(app)
expect(output).toContain(warningText)
})
})