Introducing the Application

Like many other system tests, we’ll start with a prewritten system, and mainly focus on testing it. The base system will use a few open source libraries, mostly around interacting with a database.

For Elixir Readers

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If you’re following along with Elixir, the dependencies of the Erlang application won’t be replaced by their equivalents from the Elixir ecosystem: we’ll stick with the Erlang ones. Since the various integration bugs our test suites could find may differ based on the libraries used, you’ll be able to follow along the text more easily by reusing the same components as those used in the base Erlang implementation, ...

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