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Guide.Contributing.md

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Contributing to detox

Clone detox and submodules

git clone [email protected]:wix/detox.git
cd detox
git submodule update --init --recursive

(this makes sure all git submodule dependencies are properly checked out)

Install node v7.6 or higher (to support async-await natively)

brew install node

Install global node libraries lerna and react-native-cli

npm install -g lerna
npm install -g react-native-cli

For all the internal projects (detox, detox-server, detox-cli, demos, test) lerna will create symbolic links in node_modules instead of npm copying the content of the projects. This way, any change you do on any code is there immediately. There is no need to update node modules or copy files between projects.

Install fbsimctl

brew tap facebook/fb
export CODE_SIGNING_REQUIRED=NO && brew install fbsimctl --HEAD

Install xcpretty

gem install xcpretty

Installing

lerna bootstrap

Building

lerna run build

Testing

lerna run test

Detox JS code is 100% test covered and is set to break the build if coverage gets below, so make sure you run unit tests (lerna run test) locally before pushing.

Alternatively, to run only the JS tests, run the following from the detox/detox directory:

npm run unit
-or-
npm run unit:watch

How to read the coverage report

After running the tests, jest will create a coverage report.

cd detox
open coverage/lcov-report/index.html

Running detox e2e covarage tests

Detox has a suite of e2e tests to test its own API while developing (and for regression). The way we do is is by maintaining a special application that is "tested" against detox's API, but essentially, it's the API that is tested, not the app. To run the e2e tests, go to detox/detox/test

cd detox/test

To build the application (if you already ran lerna run build you're covered)

npm run build

To run the e2e tests, after the application was built.

npm run e2e