If you write code to SQL Server then you might be interested in this: at the end of 2017 I wrote a tSQLt tdd training course which has helped over 300 people learn both tSQLt and how to apply TDD practices to their SQL Server T-SQL development, you can join the course at https://courses.agilesql.club. The course is free if you are happy to wait 10 weeks to complete it, with 1 lesson being made available per week - if you are in more of a hurry or you would like to help support the project you can purchase the course which makes it instantly available to you.
I have been asked a few times now for course completion certificates so I have decided to give out certificates to anyone who pays for a plan and sends me a screen shot of a unit test they have written and answer a question on unit testing.
I will generate the certificates by hand so i’m not doing them for everyone otherwise I would have hundreds to do (over 300 people have now taken the online self-paced course).
If you have already completed the course and would like a cert then send me an email and i’ll go through the details with you :)