Incomplete tests in tests/ directory

[cjac]

Implementation exists for a number of classes which are not exercised in test/

$ grep -rsil 'class KeyInfo' -e 'KeyInfo.*new' lib test lib/googleauth/id_tokens/key_sources.rb test/id_tokens/key_sources_test.rb

$ grep -rsil -e 'class WebUserAuthorizer' -e 'WebUserAuthorizer.*new' lib test lib/googleauth/web_user_authorizer.rb

$ grep -rsil -e 'class UserAuthorizer' -e 'UserAuthorizer.*new' lib test lib/googleauth/user_authorizer.rb

$ grep -rsil -e 'class DefaultCredentials' -e 'DefaultCredentials.*new' lib test lib/googleauth/default_credentials.rb

$ grep -rsil 'ServiceAccountCredentials' lib/ test/ lib/googleauth/service_account.rb

$ grep -rsil 'ClientId' lib test lib/googleauth/client_id.rb

$ grep -rsil 'GCECredentials' lib test lib/googleauth/compute_engine.rb

$ grep -rsil 'IAMCredentials' lib test lib/googleauth/iam.rb

Thanks for stopping by to let us know something could be better!

Sure thing!