I would like to find out what the least evasive way is to change an app entry point for Detox testing in React Native?
For example, I would like to use Detox for Component testing and would like to skip the login flow of our app and directly launch the component I'm testing.
I suppose I could create a test App.js and manually change it to load that in the App.Registry for testing but there may be a better way.
Mock your entry point to a different one. You can follow our guide:
https://github.com/wix/Detox/blob/master/docs/Guide.Mocking.md
Related
I would like to be able to setup stories for my react native screens, which hooks into the API via react query hooks. I'm using the beta version of storybook react native (6.0.1-beta3).
https://storybook.js.org/addons/msw-storybook-addon, which is what I'd normally use in a react project, won't work because service workers don't exist in react native (if I'm understanding things correctly).
I have also tried installing https://storybook.js.org/addons/storybook-addon-mock/, but wasn't able to get it work (storybook failed with a runtime error when trying to register the plugin... likely a version mismatch).
I might just have to go with a container/dumb component approach for the screens, but that has it's own drawbacks because queries or mutations can be nested in components.
I'm using axios for what it's worth. I've also considered putting the axios instance in a provider so I could modify the instance per test.
Thanks
I am fairly new to React Native, transitioning from iOS. I started experimenting with testing with Jest, and pretty soon discovered that I need to mock node modules, if not all dependencies. In my case it is AsyncStorage.
My question is not how to mock, for that I've found many guides, but rather why do I even need to mock to make the tests work? Please assume I am not interested in changing the behaviour of AsyncStorage, I'm simply wondering why the mock is needed to make the test run without errors.
A broader question: what is the build process that happens when I test an app?
Hi iam new to the field of react native app development and had completed course in udemy.
But which cli should I choose first and according to which circumstances I should choose specific cli ?
What should be the workflow while designing app from scratch and which all languages do I need to know inorder to make successful completion of app ?
Totally confused and need help and direction in this issue.
Can i use react native to make pluggable components which can be inserted in to a native android app. The components should function by themselves. For example i make a search bar via react native. Is it possible to make a component only with its concerned java files which can just be plugged into an android/ios app. If yes how exactly does one do it, Note i dont want to make an entire apk or ipa file.
My use case
I have a set of api for my website. A third party wants to integrate the apis as components, is it possible for me to just make JAR/ Java class files for the component i am making and then plug the code into their codebase..
Any help or lead would be useful.
I am building a React Native android app. In app I want to download and parse huge amount of data from server. Since JavaScript is a single threaded language I don't want to execute this on same React Native JSC context. Is it possible to create a Web Worker inside React Native JSC context and do extensive background jobs?
I have tried to do the same, but it says function not available.
There is a library exactly for that now. Check out https://github.com/devfd/react-native-workers
AFAIK there is no WebWorker polyfill for React Native. You will probably have to write a Native Bridge Module. If you want to avoid that , check out this post where they use requestAnimationFrame to break heavy tasks. https://corbt.com/posts/2015/12/22/breaking-up-heavy-processing-in-react-native.html
Nowadays a library that tries to do something similar with JSI but that is not declared exactly as WebWorker is react-native-multithreading.
For now there is no solution within react-native but news may come in https://github.com/react-native-community/discussions-and-proposals/issues/486