Add N+1 query specs for the snippet index actions

spec/controllers/dashboard/snippets_controller_spec.rb

@@ -29,23 +29,6 @@ RSpec.describe Dashboard::SnippetsController do
 
     it_behaves_like 'snippets sort order'
 
-    context 'when views are rendered' do
-      render_views
-
-      it 'avoids N+1 database queries' do
-        # Warming call to load everything non snippet related
-        get(:index)
-
-        project = create(:project, namespace: user.namespace)
-        create(:project_snippet, project: project, author: user)
-
-        control_count = ActiveRecord::QueryRecorder.new { get(:index) }.count
-
-        project = create(:project, namespace: user.namespace)
-        create(:project_snippet, project: project, author: user)
-
-        expect { get(:index) }.not_to exceed_query_limit(control_count)
-      end
-    end
+    it_behaves_like 'snippets views'
   end
 end

spec/controllers/explore/snippets_controller_spec.rb

@@ -32,5 +32,9 @@ RSpec.describe Explore::SnippetsController do
       expect(assigns(:snippets)).to all(be_a(PersonalSnippet))
       expect(response).to have_gitlab_http_status(:ok)
     end
+
+    it_behaves_like 'snippets views' do
+      let_it_be(:user) { create(:user) }
+    end
   end
 end

spec/controllers/projects/snippets_controller_spec.rb

@@ -46,6 +46,10 @@ RSpec.describe Projects::SnippetsController do
       let(:params) { base_params }
     end
 
+    it_behaves_like 'snippets views' do
+      let(:params) { base_params }
+    end
+
     context 'when the project snippet is private' do
       let_it_be(:project_snippet) { create(:project_snippet, :private, project: project, author: user) }
 

spec/support/shared_examples/controllers/snippet_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'snippets views' do
+  let(:params) { {} }
+
+  before do
+    sign_in(user)
+  end
+
+  context 'when rendered' do
+    render_views
+
+    it 'avoids N+1 database queries' do
+      # Warming call to load everything non snippet related
+      get(:index, params: params)
+
+      project = create(:project, namespace: user.namespace)
+      create(:project_snippet, project: project, author: user)
+
+      control_count = ActiveRecord::QueryRecorder.new { get(:index, params: params) }.count
+
+      project = create(:project, namespace: user.namespace)
+      create(:project_snippet, project: project, author: user)
+
+      expect { get(:index, params: params) }.not_to exceed_query_limit(control_count)
+    end
+  end
+end