anchor.diff:  
           ok
       after
  -        os:unsetenv("REL_VSN"),
  -        os:unsetenv("REL_NAME")
  +        os:unsetenv("RELEASE_VSN"),
  +        os:unsetenv("RELEASE_NAME")
       end.
   
   release_service_name_no_version(_Config) ->
       try
  -        os:putenv("REL_NAME", "rel-cttest"),
  +        os:putenv("RELEASE_NAME", "rel-cttest"),
           application:unload(opentelemetry),
           application:load(opentelemetry),
           application:set_env(opentelemetry, resource, #{<<"e">> => <<"f">>}),
  
positive.code: 
  release_service_name(_Config) ->
      try
          os:putenv("REL_NAME", "rel-cttest"),
          os:putenv("REL_VSN", "0.1.0"),
          application:unload(opentelemetry),
          application:load(opentelemetry),
          application:set_env(opentelemetry, resource, #{<<"e">> => <<"f">>}),
  
negative.code: 
          ok
      after
          os:unsetenv("RELEASE_NAME")
      end.
  