protect against bots with timeouts

spec/features/support_spec.rb

@@ -2,6 +2,7 @@ require 'rails_helper'
 
 feature 'Support announcement' do
   scenario 'User announces support' do
+    allow_any_instance_of(SupportersController).to receive(:input_to_fast?).and_return(false)
     visit root_path
 
     fill_in 'Vorname', with: 'Christoph'
@@ -18,4 +19,17 @@ feature 'Support announcement' do
 
     expect { click_button 'Unterstützung zusichern' }.to change { Supporter.count }.by(1)
   end
+
+  scenario 'A bot tries to enter data' do
+    visit root_path
+
+    click_button 'Unterstützung zusichern'
+
+    expect(page).to have_content 'Ihre Eingabe war zu schnell.'
+    
+    # Test twice just to be sure that it's not become an update action
+    click_button 'Unterstützung zusichern'
+
+    expect(page).to have_content 'Ihre Eingabe war zu schnell.'
+  end
 end