Decide how test directories should be structured and prioritize tests

[pwdel]

• To keep our code clean, we should come up with test guidelines which include where tests are kept in terms of golang directory, and what kind of coverage we are looking to build.
• When we have new contributors or even just for ourselves, we could point people to this readme file as a general guideline.
• Golang general style will take precedence, if there is an existing recommendation, we should follow that first before creating our own exceptions.