Refactor ClustersController pagination test

app/controllers/projects/clusters_controller.rb

@@ -9,7 +9,7 @@ class Projects::ClustersController < Projects::ApplicationController
   def index
     @scope = params[:scope] || 'all'
     clusters = ClustersFinder.new(project, current_user, @scope).execute
-    @clusters = clusters.page(params[:page]).per(20)
+    @clusters = clusters.page(params[:page])
     @active_count = project.clusters.enabled.count
     @inactive_count = project.clusters.disabled.count
     @all_count = @active_count + @inactive_count

spec/controllers/projects/clusters_controller_spec.rb

@@ -33,20 +33,19 @@ describe Projects::ClustersController do
           expect(assigns(:inactive_count)).to eq(project.clusters.disabled.count)
         end
 
-        context 'properly paginates' do
-          before do
-            PAGE_LIMIT = 20
-            project.clusters = create_list(:cluster, PAGE_LIMIT + 1, :provided_by_gcp, projects: [project])
-          end
+        context 'when page is specified' do
+          let(:last_page) { project.clusters.page.total_pages }
 
-          it 'shows the first page' do
-            go
-            expect(assigns(:clusters).count).to eq(PAGE_LIMIT)
+          before do
+            Clusters::Cluster.paginates_per(1)
+            create_list(:cluster, 2, :provided_by_gcp, projects: [project])
+            get :index, namespace_id: project.namespace, project_id: project, page: last_page
           end
 
-          it 'shows the second page' do
-            get :index, namespace_id: project.namespace, project_id: project, page: 2
-            expect(assigns(:clusters).count).to eq(1)
+          it 'redirects to the page' do
+            binding.pry
+            expect(response).to have_gitlab_http_status(:ok)
+            expect(assigns(:clusters).current_page).to eq(last_page)
           end
         end