Fix some intermittent spec failures due to faker data clashes (#742)

* Ensure scheme id and postcode don't class

* Fix case log search intermittent faker bomb

spec/models/scheme_spec.rb

@@ -46,6 +46,10 @@ RSpec.describe Scheme, type: :model do
       end
 
       context "when searching by all searchable fields" do
+        before do
+          location_2.update!(postcode: location_2.postcode.gsub(scheme_1.id.to_s, "0"))
+        end
+
         it "returns case insensitive matching records" do
           expect(described_class.search_by(scheme_1.id.to_s).count).to eq(1)
           expect(described_class.search_by(scheme_1.id.to_s).first.id).to eq(scheme_1.id)

spec/requests/case_logs_controller_spec.rb

@@ -778,7 +778,7 @@ RSpec.describe CaseLogsController, type: :request do
       it "dowloads searched logs" do
         get "/logs?search=#{case_log.id}", headers:, params: {}
         csv = CSV.parse(response.body)
-        expect(csv.count).to eq(2)
+        expect(csv.count).to eq(CaseLog.search_by(case_log.id.to_s).count + 1)
       end
 
       context "when both filter and search applied" do