Not getting all test cases passed message neither error message

I am not able to get any message when I am running the code of shortest distance between two nodes. When I run the unit case line of the same function, nothing comes out as output. Neither passed nor errors.

Send me the code for that function in the private, let me have a look at it first! Its strange you are not getting any errors or anything, hope you haven’t change the official name of the notebook or deleted any cells…