Add test for expired access token

app/models/api/openid_connect/authorization.rb

@@ -57,7 +57,6 @@ module Api
         auth.code = nil if auth # Remove auth code if found so it can't be reused
         auth
       end
-      # TODO: Consider splitting into subclasses by flow type
     end
   end
 end

lib/api/openid_connect/authorization_point/endpoint.rb

@@ -50,8 +50,6 @@ module Api
             end
           }
         end
-
-        # TODO: buildResponseType(req)
       end
     end
   end

spec/lib/api/openid_connect/protected_resource_endpoint_spec.rb

 require "spec_helper"
-
 describe Api::OpenidConnect::ProtectedResourceEndpoint, type: :request do
   let(:auth_with_read) { FactoryGirl.create(:auth_with_read) }
   let!(:access_token_with_read) { auth_with_read.create_access_token.to_s }
+  let!(:expired_access_token) do
+    access_token = auth_with_read.o_auth_access_tokens.create!
+    access_token.expires_at = Time.zone.now - 100
+    access_token.save
+    access_token.bearer_token.to_s
+  end
   let(:invalid_token) { SecureRandom.hex(32).to_s }
 
-  # TODO: Add tests for expired access tokens
-
   context "when valid access token is provided" do
     before do
       get api_openid_connect_user_info_path, access_token: access_token_with_read
@@ -17,6 +20,19 @@ describe Api::OpenidConnect::ProtectedResourceEndpoint, type: :request do
     end
   end
 
+  context "when access token is expired" do
+    before do
+      get api_openid_connect_user_info_path, access_token: expired_access_token
+    end
+
+    it "should respond with a 401 Unauthorized response" do
+      expect(response.status).to be(401)
+    end
+    it "should have an auth-scheme value of Bearer" do
+      expect(response.headers["WWW-Authenticate"]).to include("Bearer")
+    end
+  end
+
   context "when no access token is provided" do
     before do
       get api_openid_connect_user_info_path