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Chorus React-Redux Calculator

A sample project which demonstrates how the Docker version of Chorus interpreter can be used to test a React / Redux APP running under Docker compose

Building and Running the calculator app locally

You will need:

  1. Yarn and Node.js installed to build and run the web app locally
  2. Docker and Docker Compose, to run the e2e tests

To install and run the app:

  • yarn install

Once installed you can start it with

  • yarn start

And open a browser at localhost:3000

Although you can run the app locally like this, for e2e testing a docker-compose.yml is included under ./e2e which will start up the app in a Docker container node image, and start up a Chorus and Selenium containers alongside it to test it.

Running the e2e test suite with Chorus Docker

Running Chorus under Docker prevents you having to install Chorus (and Java) locally on your system :)

A docker-compose.yml is included under ./e2e which includes images for

  • Selenium Hub, Firefox and Chrome.
  • node - to serve the html and js resources for the Calculator single page app
  • chorus-interpreter - to run the chorus tests under ./feature, using Selenium

You can run the e2e Chorus features with:

  • yarn e2e

This will run the script under e2e/e2e.sh, which starts up the docker cluster and runs all the tests under ./feature This will start all the containers once and run the test

Watching the tests running

Since the Selenium Chrome image has VNC enabled, you can see the chorus tests running in the browser by pointing a VNC client at vnc://localhost:5912, using pwd secret
This will attach to a vnc server on the docker image running the chrome browser Tip - On MacOS, Safari will work :)

You can also connect to the calculator app running in the node container by pointing your browser at http://localhost:9000

Running tests while developing

To work on new tests, you can bring up the environment by running

  • yarn e2e:start

And once the docker environment has started, you can execute chorus features manually by typing

  • yarn e2e:runChorus

This command will exec the Chorus interpreter once, within the Chorus container.

Running

Acknowledgements

Thanks to Michael Jackson for open sourcing the original HTML5/CSS Calculator on which this Redux / Chorus conversion was based https://codepen.io/mjijackson/pen/xOzyGX