Fix rubocop offense

app/controllers/oauth/geo_auth_controller.rb

@@ -4,7 +4,7 @@ class Oauth::GeoAuthController < ActionController::Base
 
   def auth
     oauth = Gitlab::Geo::OauthSession.new(state: params[:state])
-    unless oauth.is_oauth_state_valid?
+    unless oauth.oauth_state_valid?
       redirect_to root_url
       return
     end
@@ -14,7 +14,7 @@ class Oauth::GeoAuthController < ActionController::Base
 
   def callback
     oauth = Gitlab::Geo::OauthSession.new(state: params[:state])
-    unless oauth.is_oauth_state_valid?
+    unless oauth.oauth_state_valid?
       redirect_to new_user_session_path
       return
     end

lib/gitlab/geo/oauth_session.rb

@@ -7,7 +7,7 @@ module Gitlab
       attr_accessor :state
       attr_accessor :return_to
 
-      def is_oauth_state_valid?
+      def oauth_state_valid?
         return false unless state
         salt, hmac, return_to = state.split(':', 3)
 

spec/controllers/oauth/geo_auth_controller_spec.rb

@@ -16,7 +16,7 @@ describe Oauth::GeoAuthController do
     let(:primary_node_oauth_endpoint) { Gitlab::Geo::OauthSession.new.authorize_url(redirect_uri: oauth_geo_callback_url, state: auth_state) }
 
     it 'redirects to root_url when state is invalid' do
-      allow_any_instance_of(Gitlab::Geo::OauthSession).to receive(:is_oauth_state_valid?) { false }
+      allow_any_instance_of(Gitlab::Geo::OauthSession).to receive(:oauth_state_valid?) { false }
       get :auth, state: auth_state
 
       expect(response).to redirect_to(root_url)
@@ -40,7 +40,7 @@ describe Oauth::GeoAuthController do
       end
 
       it 'redirects to login screen if state is invalid' do
-        allow_any_instance_of(Gitlab::Geo::OauthSession).to receive(:is_oauth_state_valid?) { false }
+        allow_any_instance_of(Gitlab::Geo::OauthSession).to receive(:oauth_state_valid?) { false }
         get :callback, state: callback_state
 
         expect(response).to redirect_to(new_user_session_path)

spec/lib/gitlab/geo/oauth_session_spec.rb

@@ -14,24 +14,24 @@ describe Gitlab::Geo::OauthSession do
     allow(subject).to receive(:primary_node_url) { 'http://localhost:3001/' }
   end
 
-  describe '#is_oauth_state_valid?' do
+  describe '#oauth_state_valid?' do
     it 'returns false when state is not present' do
-      expect(subject.is_oauth_state_valid?).to be_falsey
+      expect(subject.oauth_state_valid?).to be_falsey
     end
 
     it 'returns false when return_to cannot be retrieved' do
       subject.state = 'invalidstate'
-      expect(subject.is_oauth_state_valid?).to be_falsey
+      expect(subject.oauth_state_valid?).to be_falsey
     end
 
     it 'returns false when hmac does not match' do
       subject.state = dummy_state
-      expect(subject.is_oauth_state_valid?).to be_falsey
+      expect(subject.oauth_state_valid?).to be_falsey
     end
 
     it 'returns true when hmac matches generated one' do
       subject.state = valid_state
-      expect(subject.is_oauth_state_valid?).to be_truthy
+      expect(subject.oauth_state_valid?).to be_truthy
     end
   end