test for user being in dev env not being asked for 2fa

spec/models/user_spec.rb

@@ -139,6 +139,16 @@ RSpec.describe User, type: :model do
       it "can filter case logs by user, year, status and organisation" do
         expect(user.case_logs_filters).to eq(%w[status years user organisation])
       end
+
+      context "when the user is in development environment" do
+        before do
+          allow(Rails.env).to receive(:development?).and_return(true)
+        end
+
+        it "doesn't require 2FA" do
+          expect(user.need_two_factor_authentication?(nil)).to be false
+        end
+      end
     end
   end