feat(Instructeurs::ProceduresController#show): when an instructeur views list of dossier, caches current loaded page

app/controllers/instructeurs/procedures_controller.rb

@@ -122,6 +122,8 @@ module Instructeurs
         .where(groupe_instructeurs: current_instructeur.groupe_instructeurs.where(procedure_id: @procedure.id))
         .where(seen_at: nil)
         .distinct
+
+      cache_show_procedure_state # don't move in callback, inherited by Instructeurs::DossiersController
     end
 
     def deleted_dossiers
@@ -392,5 +394,11 @@ module Instructeurs
     def ordered_procedure_ids_params
       params.require(:ordered_procedure_ids)
     end
+
+    def cache_show_procedure_state
+      cache = Cache::ProcedureDossierPagination.new(procedure_presentation:, statut:)
+
+      cache.save_context(ids: @filtered_sorted_paginated_ids, incoming_page: params[:page])
+    end
   end
 end

app/models/cache/procedure_dossier_pagination.rb

@@ -54,11 +54,6 @@ class Cache::ProcedureDossierPagination
     read_cache[:incoming_page]
   end
 
-  # test only
-  def raw
-    read_cache
-  end
-
   private
 
   def cache_key

spec/controllers/instructeurs/procedures_controller_spec.rb

@@ -670,6 +670,18 @@ describe Instructeurs::ProceduresController, type: :controller do
         end
       end
     end
+
+    describe 'caches statut and page query param' do
+      let(:statut) { 'tous' }
+      let(:page) { '1' }
+      let!(:dossier) { create(:dossier, :accepte, procedure:) }
+      before { sign_in(instructeur.user) }
+      subject { get :show, params: { procedure_id: procedure.id, statut:, page: } }
+      it 'changes cached value' do
+        expect { subject }.to change { Cache::ProcedureDossierPagination.new(statut:, procedure_presentation: double(procedure:, instructeur:)).send(:read_cache) }
+          .from({}).to(ids: [dossier.id], incoming_page: page)
+      end
+    end
   end
 
   describe '#deleted_dossiers' do