NUnit Tests not running and have blue exclamation Icon next to them

Question

Are you trying to tests out some methods, but when it comes down to it your tests arent even running?

Typically they might have a blue exclamation point next to them and when you run all tests the output is something like:

0 tests run 0 tests passed 0 tests failed 

Answer 1

This typically happens when you dont install the NUnit3TestAdapater.

Run this in the package manager console (tools > Nugest Package Manager > Package Manager Console)

Install-Package Nunit3TestAdapter

and then clean build your solution

and then run all tests and voila!

They should be running again (whether they pass or fail is up to you!)