I am new to Vite and Vitest. I am experimenting a little bit, trying to add Vitest to a React-native app. I know Vite doesn't really support React Native but I would like to trying running just the tests with Vitest.
I get an error when trying to import React-native modules:
Module .../node_modules/react-native/index.js:14 seems to be an ES Module but shipped in a CommonJS package. You might want to create an issue to the package "react-native" asking them to ship the file in .mjs extension or add "type": "module" in their package.json.
As a temporary workaround you can try to inline the package by updating your config:
// vitest.config.js
export default {
test: {
deps: {
inline: [
"react-native"
]
}
}
}
When adding the suggested config the tests break inside React-native instead, as if the modules in fact is not supported.
What is going on here? Is React-Native only published as commonjs modules, while only esm-modules is supported by Vite? Is there a way around it?
Thanks in advance,
M.
Related
As you can see in the bundle analyzer screenshot, our app is using both the es and lib modules from antd (this is when building for production as well as development).
The app was init:ed with CRA and we use craco to override some webpack settings, this is the only thing related to antd that we do in craco.config.js:
plugins: [
{
plugin: CracoAntDesignPlugin,
options: {
customizeTheme: antd_overrides,
},
},
],
We always use the es style import of import { Button } from 'antd'.
Is there a "simple" way to only keep the es modules? Also, I'm guessing tree-shaking isn't happening as we don't actually import 288 modules from antd... but that's a different issue I'm guessing.
I've found this on the subject: https://habr.com/en/company/vk/blog/537880/, but uncertain as to how to go about the things under the hood of CRA (babel for one).
Any help and suggestions greatly appreciated.
Could it potentially be this:
import frFR from 'antd/lib/locale-provider/fr_FR';? As I'm importing from lib? Doesn't seem to be exported as an es module thou.
I am trying to include tests in my App created with Expo, but I am facing errors with AsyncStorage module
Could not find module '#react-native-async-storage/async-storage' from 'src/pages/Welcome.tsx'
I tested some configurations of the jest/expo to avoid this error, as downgrade the jest to version 26 as suggested in a GitHub issue of the project, using a mock directory as suggested here and in the official documentation here, and using jest setup file. Details below.
When I try with mock directory nothing changes in the error. The execution ignores the mock directory. When using the jest setup file the only change in the error message is that the message point to the jest setup file instead of the welcome.tsx.
The page tested is the "Welcome.tsx" that import the AsyncStorage
The test has nothing, only a a console log (code below) and don't use the AsyncStorage
The test code
const {getAllByTestId} = renderer.create(<Welcome />);
console.log(getAllByTestId);
The Welcome.tsx
...
<Image source=... testID="WelcomeImage" />
...
package.json
...
"scripts": { ... "test": "jest" ...},
"jest:" {
"preset": "jest-expo",
"globals": { "DEV": true
}
...
Installed versions
React: 17.0.1
React native: 0.64.3
React native testing library: 6.0.0
React test renderer: 17
Jest: 27.4.5
Follow the directions at - https://react-native-async-storage.github.io/async-storage/docs/advanced/jest/
Here is what I did:
Setup jestSetupFile.js as mentioned.
Setup mocks/#react-native-async-storage directory as mentioned
(I know it mentions to use either of two but I did both)
Cleared npm cache, deleted node-modules folder, deleted package-lock.json and did npm i again.(The usual steps to a clean start)
And it works now. Although I get error for enzyme but that is not within the scope of this question.
Dear Stack Overflow / Vue.js / Rollup community
This could be a noob question for the master plugin developers working with Vue and Rollup. I will write the question very explicitly hoping that it could help other noobs like me in the future.
I have simple plugin that helps with form validation. One of the components in this plugin imports Vue in order to programatically create a component and append to DOM on mount like below:
import Vue from 'vue'
import Notification from './Notification.vue' /* a very simple Vue component */
...
mounted() {
const NotificationClass = Vue.extend(Notification)
const notificationInstance = new NotificationClass({ propsData: { name: 'ABC' } })
notificationInstance.$mount('#something')
}
This works as expected, and this plugin is bundled using Rollup with a config like this:
import vue from 'rollup-plugin-vue'
import babel from 'rollup-plugin-babel'
import { terser } from 'rollup-plugin-terser'
import resolve from 'rollup-plugin-node-resolve'
import commonjs from 'rollup-plugin-commonjs'
export default {
input: 'src/index.js',
output: {
name: 'forms',
globals: {
vue: 'Vue'
}
},
plugins: [
vue(),
babel(),
resolve(),
commonjs(),
terser()
],
external: ['vue']
}
As you can see, Vue.js is getting externalised in this bundle. The aim (and the assumption) is that the client app that imports this plugin will be running on Vue, therefore there's no need to bundle it here (assumption).
The very simple src/index.js that the bundler uses is below:
import Form from './Form.vue'
export default {
install(Vue, _) {
Vue.component('bs-form', Form)
}
}
Rollup creates 2 files (one esm and one umd) and references them in in the plugins package.json file like below:
"name": "bs-forms",
"main": "./dist/umd.js",
"module": "./dist/esm.js",
"files": [
"dist/*"
],
"scripts": {
"build": "npm run build:umd & npm run build:es",
"build:es": "rollup --config rollup.config.js --format es --file dist/esm.js",
"build:umd": "rollup --config rollup.config.js --format umd --file dist/umd.js"
}
Everything works as expected up to this point and the bundles are generated nicely.
The client app (Nuxt SSR) imports this plugin (using npm-link since it's in development) with a very simple import in a plugin file:
/* main.js*/
import Vue from 'vue'
import bsForms from 'bs-forms'
Vue.use(bsForms)
This plugin file (main.js) is added to nuxt.config.js as a plugin:
// Nuxt Plugins
...
plugins: [{src: '~/plugins/main'}]
...
Everything still works as expected but here comes the problem:
Since the clients is a Nuxt app, the Vue is imported by default of course but the externalised Vue module (by the forms plugin) is also imported in the client. Therefore there is a duplication of this package in the client bundle.
I guess the client app can configure its webpack config in order to remove this duplicated module. Perhaps by using something like a Dedupe plugin or something? Can someone suggests how to best handle situation like these?
But what I really want to learn, is the best practice of bundling the plugin at the first place, so that the client doesn't have to change anything in its config and simply imports this plugin and move on.
I know that importing the Vue.js in the plugin may not be a great thing to do at the first place. But there could be other reasons for an import like this as well, for example imagine that the plugin could be written in Typescript and Vue.js / Typescript is written by using Vue.extend statements (see below) which also imports Vue (in order to enable type interface):
import Vue from 'vue'
const Component = Vue.extend({
// type inference enabled
})
So here's the long question. Please masters of Rollup, help me and the community out by suggesting best practice approaches (or your approaches) to handle situations like these.
Thank you!!!!
I had the same problem and I found this answer of #vatson very helpful
Your problem is the combination of "npm link", the nature of nodejs module loading and the vue intolerance to multiple instances from different places.
Short introduction how import in nodejs works. If your script has some kind of library import, then nodejs initially looks in the local node_modules folder, if local node_modules doesn't contain required dependency then nodejs goes to the folder above to find node_modules and your imported dependency there.
You do not need to publish your package on NPM. It is enough if you generate your package locally using npm pack and then install it in your other project npm install /absolute_path_to_your_local_package/your_package_name.tgz. If you update something in your package, you can reinstall it in your other project and everything should work.
Here is the source about the difference between npm pack and npm link https://stackoverflow.com/a/50689049/6072503.
I have sorted this problem with an interesting caveat:
The duplicate Vue package doesn't get imported when the plugin is used via an NPM package (installed by npm install -save <plugin-name> )
However, during development, if you use the package vie npm link (like npm link <plugin-name>) then Vue gets imported twice, like shown in that image in the original question.
People who encounter similar problems in the future, please try to publish and import your package and see if it makes any difference.
Thank you!
I'm sort of stuck with one problem and googling it for about three hours brought me nowhere.
Here's the problem. I'm trying to develop my own custom PDF viewer based on PDF.JS lib. Officially it is distributed on npm as pdfjs-dist package. However I need to extend a few classes that are not accessible in pdfjs-dist. So I npm install'ed or yarn add'ed the original repo https://github.com/mozilla/pdf.js.git. This way I have access to classes I need. Inside pdf.js there are core lib that is stored in pdf.js/src/ and a pdf-viewer app that is stored in pdf.js/web/.
Inside that pdf.js/web/ app core lib (pdf.js) is referenced via pdfjs-lib alias that is resolved to pdf.js/src/ during pdf.js inner build process by gulp.
For example pdf.js/web/base_viewer.js:
import { AnnotationLayerBuilder } from './annotation_layer_builder';
import { createPromiseCapability } from 'pdfjs-lib';
import { PDFPageView } from './pdf_page_view';
So now I'm trying to import that pdf.js/web/base_viewer.js in my app that is using latest Webpack 4 (I guess), and this pdfjs-lib sub-dependency is not resolved.
I've tried webpack's resolve-alias mechanism (https://webpack.js.org/configuration/resolve/):
resolve: {
alias: {
'pdfjs-lib': path.resolve(__dirname, './node_modules/pdf.js/src/')
},
}
...but looks like it resolves dependencies only of my own App, but not sub-dependencies of my dependency.
Just in case I'm building Vue 3.0 app using vue-cli and access webpack config this way: https://cli.vuejs.org/guide/webpack.html, but don't think it matters.
Any help from Webpack gurus here?
Thanks.
I am experiencing a lot of difficulties integrating React navigation in a React native WEB project.
I have created a mini project with react native web and react navigation in a cloud sandbox, everything works as expected.
Please have a look, I am not using the latest react navigation but I have tried previously the latest(updating the code as the API changed) and it works fine.
React Native web Running in Sandbox
I have cloned this project exactly as it is, installed all the dependencies and tried different versions of React Native Web, Webpack(version 3 and 4), babel(version 6 and 7) and the latest React Navigation (version 3+). I was not able to make it run on localhost, the error is:
Module parse failed: Unexpected token (10:22)
You may need an appropriate loader to handle this file type.
|
| class TabView extends React.PureComponent {
| static defaultProps = {
| lazy: true,
| removedClippedSubviews: true,
on React Navigation version 1.5.8 and a similar error on The latest version. But it works fine in the Sandbox.
Is anybody familiar with this type of setup and why the exact same code does not work on localhost?
I have tried also creating a webpack.config.js in the root and change configurations as some suggested but no luck.
You can clone this repo which is exactly the same sandbox and see for yourself.
Clone this Github Repo
Please any help would be greatly appreciated
This happened to me as well. The reason is because some of the modules provided by React Navigation are not transpiled to their corresponding react-native-web equivalent. What I mean is you need to transpile those modules individually using babel-loader or whatever you are using. Something like below in webpack.config or .babelrc should work:
{
test: /\.(js|jsx)$/,
include: [
path.resolve(root, "node_modules/#react-navigation"),
path.resolve(root, "node_modules/react-navigation"),
path.resolve(root, 'node_modules/react-native-uncompiled'),
path.resolve(root, "node_modules/react-native-tab-view"),
path.resolve(root, "node_modules/react-native-gesture-handler"),
path.resolve(root, "node_modules/react-native-vector-icons"),
path.resolve(root, "node_modules/react-native-web"),
path.resolve(root, "node_modules/react-native-tab-view"),
path.resolve(root, "node_modules/react-native-drawer"),
....and whatever module gives problem....
] // external non react-native packages to be compiled by Babel
use: {
loader: 'babel-loader',
options: {
cacheDirectory: true,
plugins: ['react-native-web']
...
}
}
};
Here is an article with clear explanation on this topic: https://pickering.org/using-react-native-react-native-web-and-react-navigation-in-a-single-project-cfd4bcca16d0