react-native-navigation-mock-render
v0.1.1
Published
Enzyme render mock of wix/react-native-navigation
Downloads
18
Maintainers
Readme
Work in progress, stay tuned.
Thin node.js mock of wix/react-native-navigation that makes it possible to write fast integration test including:
- rendering of screens
- life cycle methods
- navigation between screens
Uses:
Prerequisite
react-native
>= 0.49react
>= 16.0.0
Example usage with Jest
yarn add --dev react-native-navigation-mock-render jsdom@^11.5.1 enzyme@^3.3.0 enzyme-adapter-react-16@^1.1.1 react-native-mock-render@^0.0.19
/* @flow */
import { Navigation } from 'react-native-navigation'
import 'react-native-navigation-mock-render/lib/setup-enzyme-environment'
import { getEnzymeAppWrapper } from 'react-native-navigation-mock-render/lib/platform'
import { IntroScreen } from '../screens/intro'
import startApplication from '../index'
jest.mock('react-native-navigation/src/deprecated/platformSpecificDeprecated', () =>
// $FlowFixMe: Jest adds requireActual
require.requireActual('react-native-navigation-mock-render/lib/platform')
)
jest.mock('react-native-navigation/src/ScreenVisibilityListener', () =>
// $FlowFixMe: Jest adds requireActual
require.requireActual(
'react-native-navigation-mock-render/lib/ScreenVisibilityListener'
)
)
const wrapper = getEnzymeAppWrapper()
export const flushAllPromises = (): Promise<void> =>
new Promise(resolve => setImmediate(resolve))
describe('app integration test', () => {
it('shows authentication screen after stepping through intro', async () => {
startApplication()
await flushAllPromises()
let screenId = await Navigation.getCurrentlyVisibleScreenId()
expect(screenId).toEqual('MyApp.Intro')
const introInstance = wrapper
.find(IntroScreen)
.first()
.instance()
introInstance.onAcceptTermsPressed()
await flushAllPromises()
screenId = await Navigation.getCurrentlyVisibleScreenId()
expect(screenId).toEqual('MyApp.MainScreen')
})
})
Limitations
Still early stages. First focus is apps using startSingleScreenApp
.
Besides:
- not all
ScreenVisibilityListener
have been implemented - not all
Navigation
methods have been implemented (e.g.startTabBasedApp
,showContextualMenu
)
Contributing
To get started, run:
yarn
When developing:
yarn run lint
License
MIT