remove unneeded table delete, fix indentation in error massages, fix validation to check for brent presence (#414)

app/models/validations/financial_validations.rb

@@ -138,7 +138,7 @@ private
     collection_year = record.collection_start_year
     rent_range = LaRentRange.find_by(start_year: collection_year, la: record.la, beds: record.beds, lettype: record.lettype)
 
-    if rent_range.present? && !weekly_value_in_range(record, "brent", rent_range.hard_min, rent_range.hard_max)
+    if rent_range.present? && !weekly_value_in_range(record, "brent", rent_range.hard_min, rent_range.hard_max) && record.brent.present?
       record.errors.add :brent, I18n.t("validations.financial.brent.not_in_range")
       record.errors.add :beds, I18n.t("validations.financial.brent.beds.not_in_range")
       record.errors.add :la, I18n.t("validations.financial.brent.la.not_in_range")

spec/lib/tasks/rent_range_import_spec.rb

@@ -16,10 +16,6 @@ RSpec.describe "data_import" do
       let(:rent_ranges_file_path) { "./spec/fixtures/files/rent_ranges.csv" }
       let(:wrong_file_path) { "/test/no_csv_here.csv" }
 
-      before do
-        LaRentRange.delete_all
-      end
-
       it "creates new rent range records" do
         expect { task.invoke(start_year, rent_ranges_file_path) }.to change(LaRentRange, :count).by(5)
         expect(LaRentRange.where(ranges_rent_id: 1).exists?).to be true