Sometimes your AWS Beanstalk environment may require configuration changes from your app to properly deploy and get everything working.

We’re going to get a Ruby on Rails application running on a staging environment on AWS Elastic Beanstalk. The Rails app will be connected to a MySQL database instance.

Using Continuous Integration, you can perform tasks and run your tests automatically whenever you commit your code. Travis CI offers free Continuous Integration for open source projects.

Slow tests can slow down your development process. Using parallel_tests, you can speed up your test suite by multiple threads and running the tests in groups.

Factory Bot is a fixtures replacement which can generate the needed records directly in the tests. Faker can be used to create fake data for these records.