Don't set vaCompensationType when disability rating is nil (#11930)

* return from prefill_compensation_type if disability rating is nil

* lint

app/models/health_care_application.rb

@@ -208,6 +208,8 @@ def prefill_compensation_type
     rating_info_service = EVSS::CommonService.new(auth_headers)
     response = rating_info_service.get_rating_info
 
+    return if response.user_percent_of_disability.nil?
+
     Raven.extra_context(disability_rating: response.user_percent_of_disability)
 
     parsed_form['vaCompensationType'] = 'highDisability' if response.user_percent_of_disability >= DISABILITY_THRESHOLD

spec/models/health_care_application_spec.rb

@@ -21,6 +21,20 @@
       end
     end
 
+    context 'when disability_rating is nil' do
+      it 'does nothing' do
+        expect_any_instance_of(EVSS::CommonService).to receive(
+          :get_rating_info
+        ).and_return(OpenStruct.new(user_percent_of_disability: nil))
+
+        expect(health_care_application).not_to receive(:log_exception_to_sentry)
+
+        health_care_application.send(:prefill_compensation_type)
+
+        expect(health_care_application.parsed_form['vaCompensationType']).to eq(nil)
+      end
+    end
+
     context 'with an error' do
       it 'logs to sentry and doesnt raise the error' do
         expect(health_care_application).to receive(:log_exception_to_sentry)