E2E test workflow

[brainrepo]

Done:

This is one attempt to bring the e2e tests for the native part (ios) to the CI related to #3 .

The tests are made using appium.

The e2eios workflow builds the application using the expo server and exports it as an ipa ready for ios simulator.

We download the ipa from the expo's server and we unzip it. The ipa is unzipped (appium fails loading it triggering an error during the verification of the package, if you run appium in macOS locally you don't need to unzip it because the system does it magically for you 🤬).

We install appium and we run yarn e2e:ios:run:ci
this command start appium and run the tests concurrently

the test script runs
In this repository https://github.com/brainrepo/expo-ci-proto, you can find my first attempt.
Here the CI workflow https://github.com/brainrepo/expo-ci-proto/runs/2095445200?check_suite_focus=true
if you check line 1467 and 1468 in run appium tests step you can see that the test runs

[e2e-t] 2021-03-12T13:58:59.279Z INFO webdriver: RESULT Open up App.js to start working on your app!
[e2e-t] Message: <Open up App.js to start working on your app!>

To improve:

• The download ipa name is hardcoded in the test file
• The tests should be done using a test framework and the test response have to be more readable.
• Actually, the test doesn't end because we need to switch off appium graceful.

To evaluate

This workflow relies strongly on expo server, the builds steps are doing using expo servers which are so slow. Can be interesting to become completely autonomous using turtle-cli.

Please note: to be completely independent we need to have a web server with https, to allow turtle-cli to retrieve the js payloads and the assets. Turtle-cli is a copy of expo build system, you can use it by giving the expo credentials (in this case you have to upload the payloads and assets in their servers) or you can publish in your webserver passing to turtle-cli the url. In this last case I think that we will be completely autonomous.

https://docs.expo.io/distribution/hosting-your-app/#hosting-your-static-files

[simoneb]

Superseded by new work