DB Unit Testing with Oracle SQL Developer: a serious and complete set up guide

[This set up has been tested on SQL Developer 18.3 and Oracle RDBMS 11G. I strongly suggest you not to use any version of SQL Developer older than 18.3 because there are bugs that prevent testing exceptions in functions]

It happened a few days ago. I woke up and decided “Enough! Now I really want to set up a proper database unit testing environment for SQL Developer, fixing all the obstacles by myself!”. The point is that by following Oracle instructions you can quickly get your unit test repository up and running for your small local project but for sure not in a corporate environment where more requirements and restrictions apply.
What I mean is: how likely is to have SYS database access, which is required (and lightly overlooked by Oracle as a requirement) in order to create the UT repository with SQL Developer? Even if you do have SYS access, I strongly encourage you to go through the article because there are some tweaks that might be useful to make your environment work better.
This post wants to be a full set up guide to help who wants to get serious about unit testing with SQL Developer and set up a proper repository to use in a corporate production environment. I’ve spent quite some time to solve different issues with SQL Developer, find a way to make it work in a real multi-project environment, understand what’s under the hood and overcome some product limitations. This post is the result of all my findings in this matter. Obviously, I’ve also taken some decisions you can agree with or not, feel free to change anything according to your needs.
Obviously, if you have SYS access and/or want to set up the unit testing framework for just one project, you can skip the initial steps and fly directly to the Unix configuration section.
I really hope this can help you save time and be up and running quickly with a big smile on your face.
Go grab a coffee and let’s start.

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