Before mocking REST::Client->responseContent:

Can't connect to adfdsaf:80 (Name or service not known)

Name or service not known at /home/spek/perl5/perlbrew/perls/perl-5.26.1/lib/site_perl/5.26.1/LWP/Protocol/http.pm line 50.

After mocking REST::Client->responseContent:

{"a": 1, "b": 2}