React Native + Expo + TravisCI w/Enzyme

ReactNative_Expo_TravisCI.md

$ npm ci
$ npx jest --ci

In the root of the repo: $ touch .travis.yml

$ npm install --save-dev expo-cli

In the .travis.yml file:

language: node_js
node_js:
  - node
  - lts/*
cache:
  directories:
    - ~/.npm
    - .jest
before_script:
  - npm install -g npm@latest
script:
  - npm ci
  - npx jest --ci
jobs:
  include:
    - stage: deploy
      node_js: lts/*
      script:
        - npm ci
        - npx expo login -u $EXPO_USERNAME -p $EXPO_PASSWORD
        - npx expo publish --non-interactive

If you don't want to expose the password in the login script:

1. Set the EXPO_CLI_PASSWORD environment variable to the password
2. Run the following script: $ npx expo login --non-interactive -u

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