Fix banners in user pages

Banners were not been shown in certain pages; now
they are.

Spec to check if the banner is been shown correctly
added. Before it was in admins specs, now it has it's
own spec out of admins folder.

spec/features/admin/banners_spec.rb

@@ -74,6 +74,8 @@ feature 'Admin banners magement' do
   end
 
   scenario 'Publish a banner' do
+    section = create(:web_section, name: 'proposals')
+
     visit admin_root_path
 
     within('#side_menu') do
@@ -91,6 +93,7 @@ feature 'Admin banners magement' do
     fill_in 'post_ended_at', with: next_week.strftime("%d/%m/%Y")
     fill_in 'banner_background_color', with: '#850000'
     fill_in 'banner_font_color', with: '#ffb2b2'
+    check "banner_web_section_ids_#{section.id}"
 
     click_button 'Save changes'
 
@@ -120,19 +123,6 @@ feature 'Admin banners magement' do
     expect(page.find_field("banner_font_color_picker").value).to eq('#ffb2b2')
   end
 
-  scenario "Created banner is correctly shown in the web" do
-    banner = create(:banner, title: 'My banner', description: 'My description of the banner', target_url: '/debates', background_color: '#00FF00')
-
-    visit proposals_path
-
-    expect(find('.banner')[:style]).to eq("background-color:#00FF00")
-
-    within('.banner') do
-      expect(find('h2')[:style]).to eq("color:#{banner.font_color}")
-      expect(find('h3')[:style]).to eq("color:#{banner.font_color}")
-    end
-  end
-
   scenario 'Edit banner with live refresh', :js do
     banner1 = create(:banner, title: 'Hello',
                               description: 'Wrong text',

spec/features/banners_spec.rb

@@ -0,0 +1,29 @@
+require 'rails_helper'
+
+feature 'Banner' do
+
+  scenario "The banner is shown correctly" do
+    create(:web_section, name: 'homepage')
+    banner = create(:banner, title: 'Hello',
+                      description: 'Banner description',
+                      target_url:  'http://www.url.com',
+                      post_started_at: (Time.current - 4.days),
+                      post_ended_at:   (Time.current + 10.days),
+                      background_color: '#FF0000',
+                      font_color: '#FFFFFF')
+    section = WebSection.where(name: 'homepage').last
+    create(:banner_section, web_section: section, banner_id: banner.id)
+
+    visit root_path
+
+    within('.banner') do
+      expect(page).to have_content('Banner description')
+      expect(find('h2')[:style]).to eq("color:#{banner.font_color}")
+      expect(find('h3')[:style]).to eq("color:#{banner.font_color}")
+    end
+
+    visit debates_path
+
+    expect(page).not_to have_content('Banner description')
+  end
+end