Enforce offered as integer (#1897)

* feat: ensure offered is an integer (decimal 0 was triggering validation errors)

* feat: allow decimals but clear when not integer equivalent as per new requirements

app/models/validations/shared_validations.rb

@@ -49,7 +49,7 @@ module Validations::SharedValidations
       elsif incorrect_accuracy || value.to_d != value.to_i    # if the user enters a value in exponent notation (eg '4e1') the to_i method does not convert this to the correct value
         field = question.check_answer_label || question.id
         case question.step
-        when 1 then record.errors.add question.id.to_sym, I18n.t("validations.numeric.whole_number", field:)
+        when 1 then record.errors.add question.id.to_sym, :not_integer, message: I18n.t("validations.numeric.whole_number", field:)
         when 10 then record.errors.add question.id.to_sym, I18n.t("validations.numeric.nearest_ten", field:)
         end
       end

app/services/imports/lettings_logs_import_service.rb

@@ -326,6 +326,7 @@ module Imports
         %i[prevten non_temp_accommodation] => %w[prevten rsnvac],
         %i[joint not_joint_tenancy] => %w[joint],
         %i[offered outside_the_range] => %w[offered],
+        %i[offered not_integer] => %w[offered],
         %i[earnings over_hard_max] => %w[ecstat1],
         %i[tshortfall no_outstanding_charges] => %w[tshortfall hbrentshortfall],
         %i[beds outside_the_range] => %w[beds],

spec/services/imports/lettings_logs_import_service_spec.rb

@@ -545,6 +545,27 @@ RSpec.describe Imports::LettingsLogsImportService do
         end
       end
 
+      context "and the number of times the property was relet is 0.01" do
+        before do
+          lettings_log_xml.at_xpath("//xmlns:Q20").content = "0.01"
+        end
+
+        it "intercepts the relevant validation error" do
+          expect { lettings_log_service.send(:create_log, lettings_log_xml) }
+            .not_to raise_error
+        end
+
+        it "clears out the number offered answer" do
+          allow(logger).to receive(:warn)
+
+          lettings_log_service.send(:create_log, lettings_log_xml)
+          lettings_log = LettingsLog.find_by(old_id: lettings_log_id)
+
+          expect(lettings_log).not_to be_nil
+          expect(lettings_log.offered).to be_nil
+        end
+      end
+
       context "and the gender identity is refused" do
         before do
           lettings_log_xml.at_xpath("//xmlns:P1Sex").content = "Person prefers not to say"