How to measure code coverage in Golang?

Question

Has anyone succeeded in generating code coverage for Go unit tests? I can\'t find a tool for that on the web.

Answer 1

A quick and easy way is to use the coverage tool that comes with built-in go :

$ go test -coverprofile cp.out // Emits the coverage in one liner percentage wise

After you execute the above command, if you wish to visually see the code coverage (like covered statements and missed etc)

$ go tool cover -html=cp.out

Note : You need to execute the above commands in the folder where you wish to see coverage