updates SiS controller spec

spec/controllers/v0/sign_in_controller_spec.rb

@@ -2263,8 +2263,19 @@
     let(:enforced_terms) { nil }
     let(:anti_csrf) { false }
     let(:expected_error_status) { :unauthorized }
+    let(:identifier) { user_account.icn }
+    let(:deceased_date) { nil }
+    let(:id_theft_flag) { false }
+    let(:mpi_profile) { build(:mpi_profile, icn: user_account.icn, deceased_date:, id_theft_flag:) }
+    let(:find_profile_response) { create(:find_profile_response, profile: mpi_profile) }
 
-    before { allow(Rails.logger).to receive(:info) }
+    before do
+      allow(Rails.logger).to receive(:info)
+      allow_any_instance_of(MPI::Service)
+        .to receive(:find_profile_by_identifier)
+        .with(identifier:, identifier_type: MPI::Constants::ICN)
+        .and_return(find_profile_response)
+    end
 
     shared_examples 'error response' do
       let(:expected_error_json) { { 'errors' => expected_error } }
@@ -2432,6 +2443,20 @@
           it_behaves_like 'error response'
         end
 
+        context 'and the retrieved account has an MPI death flag' do
+          let(:deceased_date) { '20020202' }
+          let(:expected_error) { 'Death Flag Detected' }
+
+          it_behaves_like 'error response'
+        end
+
+        context 'and the account has an MPI theft flag' do
+          let(:id_theft_flag) { true }
+          let(:expected_error) { 'Theft Flag Detected' }
+
+          it_behaves_like 'error response'
+        end
+
         it 'returns ok status' do
           expect(subject).to have_http_status(:ok)
         end