adds specs

spec/features/admin/poll/shifts_spec.rb

@@ -30,7 +30,7 @@ feature 'Admin shifts' do
     expect(page).to have_content officer.name
   end
 
-  scenario "Create" do
+  scenario "Create", :js do
     poll = create(:poll)
     booth = create(:poll_booth)
     officer = create(:poll_officer)
@@ -41,10 +41,13 @@ feature 'Admin shifts' do
       click_link "Manage shifts"
     end
 
-    select I18n.l(poll.starts_at.to_date, format: :long), from: 'shift_date'
-    select officer.name, from: 'shift_officer_id'
-    click_button "Add shift"
+    fill_in "search", with: officer.email
+    click_button "Search"
+    click_link "Edit shifts"
 
+    select I18n.l(poll.starts_at.to_date, format: :long), from: 'shift_date'
+    click_button "Add shift"
+    
     expect(page).to have_content "Shift added"
 
     within("#shifts") do
@@ -54,6 +57,25 @@ feature 'Admin shifts' do
     end
   end
 
+  scenario "Erros on create", :js do
+    poll = create(:poll)
+    booth = create(:poll_booth)
+    officer = create(:poll_officer)
+
+    visit admin_booths_path
+    
+    within("#booth_#{booth.id}") do
+      click_link "Manage shifts"
+    end
+
+    fill_in "search", with: officer.email
+    click_button "Search"
+    click_link "Edit shifts"
+    click_button "Add shift"
+
+    expect(page).to have_content "can't be blank"
+  end
+
   scenario "Destroy" do
     poll = create(:poll)
     booth = create(:poll_booth)