client.rb in google-iam-v2-0.3.1

- old
+ new

@@ -143,11 +143,11 @@
 
             # Create credentials
             credentials = @config.credentials
             # Use self-signed JWT if the endpoint is unchanged from default,
             # but only if the default endpoint does not have a region prefix.
-            enable_self_signed_jwt = @config.endpoint == Client.configure.endpoint &&
+            enable_self_signed_jwt = @config.endpoint == Configuration::DEFAULT_ENDPOINT &&
                                      !@config.endpoint.split(".").first.include?("-")
             credentials ||= Credentials.default scope: @config.scope,
                                                 enable_self_signed_jwt: enable_self_signed_jwt
             if credentials.is_a?(::String) || credentials.is_a?(::Hash)
               credentials = Credentials.new credentials, scope: @config.scope
@@ -790,10 +790,12 @@
           #   @return [::String]
           #
           class Configuration
             extend ::Gapic::Config
 
-            config_attr :endpoint,      "iam.googleapis.com", ::String
+            DEFAULT_ENDPOINT = "iam.googleapis.com"
+
+            config_attr :endpoint,      DEFAULT_ENDPOINT, ::String
             config_attr :credentials,   nil do |value|
               allowed = [::String, ::Hash, ::Proc, ::Symbol, ::Google::Auth::Credentials, ::Signet::OAuth2::Client, nil]
               allowed += [::GRPC::Core::Channel, ::GRPC::Core::ChannelCredentials] if defined? ::GRPC
               allowed.any? { |klass| klass === value }
             end