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Nuxt/packages/cli/test/unit/cli.test.js

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import { readdir } from 'fs'
import { resolve } from 'path'
import { promisify } from 'util'
import { consola } from '../utils'
import { run } from '../../src'
import * as commands from '../../src/commands'
const readDir = promisify(readdir)
jest.mock('../../src/commands')
describe('cli', () => {
afterEach(() => jest.resetAllMocks())
test('exports for all commands defined', async () => {
const cmds = await readDir(resolve(__dirname, '..', '..', 'src', 'commands'))
for (let cmd of cmds) {
if (cmd === 'index.js') {
continue
}
cmd = cmd.substring(0, cmd.length - 3)
const cmdFn = commands[cmd] // eslint-disable-line import/namespace
expect(cmdFn).toBeDefined()
expect(typeof cmdFn).toBe('function')
}
})
test('calls expected method', async () => {
const argv = process.argv
process.argv = ['', '', 'dev']
const defaultExport = {
run: jest.fn().mockImplementation(() => Promise.resolve())
}
commands.dev.mockImplementationOnce(() => Promise.resolve({ default: defaultExport }))
await run()
expect(defaultExport.run).toHaveBeenCalled()
process.argv = argv
})
test('unknown calls default method', async () => {
const argv = process.argv
process.argv = ['', '', 'test']
commands.dev.mockImplementationOnce(() => Promise.resolve())
await run()
expect(commands.dev).toHaveBeenCalled()
process.argv = argv
})
test('sets NODE_ENV=development for dev', async () => {
const nodeEnv = process.env.NODE_ENV
process.env.NODE_ENV = ''
commands.dev.mockImplementationOnce(() => Promise.resolve())
await run()
expect(process.env.NODE_ENV).toBe('development')
process.env.NODE_ENV = nodeEnv
})
test('sets NODE_ENV=production for build', async () => {
const argv = process.argv
const nodeEnv = process.env.NODE_ENV
process.argv = ['', '', 'build']
process.env.NODE_ENV = ''
commands.build.mockImplementationOnce(() => Promise.resolve())
await run()
expect(process.env.NODE_ENV).toBe('production')
process.argv = argv
process.env.NODE_ENV = nodeEnv
})
test('catches fatal error', async () => {
commands.dev.mockImplementationOnce(() => Promise.reject(new Error('Command Error')))
await run()
expect(consola.fatal).toHaveBeenCalledWith(new Error('Command Error'))
})
})