rsnext/test/isolated/config.test.js
Andrew Gerard 369ac488e0 Assign deep defaults for custom config (#6359)
* assign deep defaults for custom config

* allow for new object type defaults

* fix linting
2019-02-20 14:00:03 +01:00

73 lines
2.8 KiB
JavaScript

/* eslint-env jest */
import { join } from 'path'
import loadConfig from 'next-server/next-config'
import { PHASE_DEVELOPMENT_SERVER } from 'next-server/constants'
const pathToConfig = join(__dirname, '_resolvedata', 'without-function')
const pathToConfigFn = join(__dirname, '_resolvedata', 'with-function')
describe('config', () => {
it('Should get the configuration', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, pathToConfig)
expect(config.customConfig).toBe(true)
})
it('Should pass the phase correctly', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, pathToConfigFn)
expect(config.phase).toBe(PHASE_DEVELOPMENT_SERVER)
})
it('Should pass the defaultConfig correctly', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, pathToConfigFn)
expect(config.defaultConfig).toBeDefined()
})
it('Should assign object defaults deeply to user config', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, pathToConfigFn)
expect(config.distDir).toEqual('.next')
expect(config.onDemandEntries.maxInactiveAge).toBeDefined()
})
it('Should pass the customConfig correctly', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, null, { customConfig: true })
expect(config.customConfig).toBe(true)
})
it('Should not pass the customConfig when it is null', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, null, null)
expect(config.webpack).toBe(null)
})
it('Should assign object defaults deeply to customConfig', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, null, { customConfig: true, onDemandEntries: { custom: true } })
expect(config.customConfig).toBe(true)
expect(config.onDemandEntries.maxInactiveAge).toBeDefined()
})
it('Should allow setting objects which do not have defaults', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, null, { bogusSetting: { custom: true } })
expect(config.bogusSetting).toBeDefined()
expect(config.bogusSetting.custom).toBe(true)
})
it('Should override defaults for arrays from user arrays', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, null, { pageExtensions: ['.bogus'] })
expect(config.pageExtensions).toEqual(['.bogus'])
})
it('Should throw when an invalid target is provided', () => {
try {
loadConfig(PHASE_DEVELOPMENT_SERVER, join(__dirname, '_resolvedata', 'invalid-target'))
// makes sure we don't just pass if the loadConfig passes while it should fail
throw new Error('failed')
} catch (err) {
expect(err.message).toMatch(/Specified target is invalid/)
}
})
it('Should pass when a valid target is provided', () => {
const config = loadConfig(PHASE_DEVELOPMENT_SERVER, join(__dirname, '_resolvedata', 'valid-target'))
expect(config.target).toBe('serverless')
})
})