Don't display incompatible investment's table if empty

app/views/budgets/results/show.html.erb

@@ -42,8 +42,10 @@
                               heading_price: @heading.price,
                               investments: @investments.compatible %>
 
-  <%= render 'results_table', results_type: :incompatible,
-                              title: t("budgets.results.incompatibles"),
-                              heading_price: @heading.price,
-                              investments: @investments.incompatible %>
+  <% if @investments.incompatible.present? %>
+    <%= render 'results_table', results_type: :incompatible,
+                                title: t("budgets.results.incompatibles"),
+                                heading_price: @heading.price,
+                                investments: @investments.incompatible %>
+  <% end %>
 </div>

spec/features/budgets/results_spec.rb

@@ -55,4 +55,14 @@ feature 'Results' do
     expect(page).to have_content "You do not have permission to carry out the action"
   end
 
+  scenario "No incompatible investments", :js do
+    investment3.incompatible = false
+    investment3.save
+
+    visit budget_path(budget)
+    click_link "See results"
+
+    expect(page).not_to have_content "Incompatibles"
+  end
+
 end