Set up 1st iter. of "Contact sales" btn experiment

- Add a new experiment key for :contact_sales_btn_in_app
- Add ApplicationHelper#contact_sales_url
- Use experiment to determine if "Contact salse" button should be shown
- Use contact_sales_url + special query param for marketing on each btn

app/helpers/application_helper.rb

@@ -194,6 +194,10 @@ module ApplicationHelper
     'https://' + promo_host
   end
 
+  def contact_sales_url
+    promo_url + '/sales'
+  end
+
   def support_url
     Gitlab::CurrentSettings.current_application_settings.help_page_support_url.presence || promo_url + '/getting-help/'
   end

ee/app/helpers/billing_plans_helper.rb

@@ -56,6 +56,11 @@ module BillingPlansHelper
     end
   end
 
+  def show_contact_sales_button?(purchase_link_action)
+    experiment_enabled?(:contact_sales_btn_in_app) &&
+      purchase_link_action == 'upgrade'
+  end
+
   def plan_feature_short_list(plan)
     return [] unless plan.features
 

ee/app/views/shared/billings/_billing_plan.html.haml

@@ -34,6 +34,8 @@
     - if purchase_link
       .card-footer.p-3
         .float-right{ class: ("invisible" unless purchase_link.action == 'upgrade' || is_current_plan) }
+          - if show_contact_sales_button?(purchase_link.action)
+            = link_to s_('BillingPlan|Contact sales'), "#{contact_sales_url}?test=inappcontactsales#{plan.code}", class: "btn btn-success btn-inverted"
           - upgrade_button_class = "disabled" if is_current_plan && !namespace.trial_active?
           - cta_class = '-new' if use_new_purchase_flow?(namespace)
           = link_to s_('BillingPlan|Upgrade'), plan_purchase_or_upgrade_url(namespace, plan, current_plan), class: "btn btn-success #{upgrade_button_class} billing-cta-purchase#{cta_class}"

ee/spec/features/billings/billing_plans_spec.rb

@@ -18,6 +18,7 @@ RSpec.describe 'Billing plan pages', :feature do
   end
 
   before do
+    stub_experiment_for_user(contact_sales_btn_in_app: true)
     stub_full_request("#{EE::SUBSCRIPTIONS_URL}/gitlab_plans?plan=#{plan.name}")
       .to_return(status: 200, body: plans_data.to_json)
     stub_application_setting(check_namespace_plan: true)
@@ -43,6 +44,20 @@ RSpec.describe 'Billing plan pages', :feature do
     end
   end
 
+  shared_examples 'can contact sales' do
+    before do
+      visit page_path
+    end
+
+    it 'displays the contact sales link' do
+      # see ApplicationHelper#contact_sales_url
+      contact_sales_url = 'https://about.gitlab.com/sales'
+      page.within('.content') do
+        expect(page).to have_link('Contact sales', href: %r{#{contact_sales_url}\?test=inappcontactsales(bronze|silver|gold)})
+      end
+    end
+  end
+
   shared_examples 'non-upgradable plan' do
     before do
       visit page_path
@@ -141,6 +156,7 @@ RSpec.describe 'Billing plan pages', :feature do
       end
 
       it_behaves_like 'plan with subscription table'
+      it_behaves_like 'can contact sales'
     end
 
     context 'on bronze plan' do
@@ -153,6 +169,7 @@ RSpec.describe 'Billing plan pages', :feature do
       it_behaves_like 'plan with header'
       it_behaves_like 'downgradable plan'
       it_behaves_like 'upgradable plan'
+      it_behaves_like 'can contact sales'
       it_behaves_like 'plan with subscription table'
     end
 
@@ -166,6 +183,7 @@ RSpec.describe 'Billing plan pages', :feature do
       it_behaves_like 'plan with header'
       it_behaves_like 'downgradable plan'
       it_behaves_like 'upgradable plan'
+      it_behaves_like 'can contact sales'
       it_behaves_like 'plan with subscription table'
     end
 
@@ -231,6 +249,8 @@ RSpec.describe 'Billing plan pages', :feature do
           end
         end
       end
+
+      it_behaves_like 'can contact sales'
     end
 
     context 'on bronze plan' do
@@ -243,6 +263,7 @@ RSpec.describe 'Billing plan pages', :feature do
       it_behaves_like 'plan with header'
       it_behaves_like 'downgradable plan'
       it_behaves_like 'upgradable plan'
+      it_behaves_like 'can contact sales'
     end
 
     context 'on gold plan' do
@@ -319,6 +340,8 @@ RSpec.describe 'Billing plan pages', :feature do
         it 'displays subscription table', :js do
           expect(page).to have_selector('.js-subscription-table')
         end
+
+        it_behaves_like 'can contact sales'
       end
     end
   end

ee/spec/helpers/billing_plans_helper_spec.rb

@@ -87,4 +87,27 @@ RSpec.describe BillingPlansHelper do
       end
     end
   end
+
+  describe '#show_contact_sales_button?' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:experiment_enabled, :link_action, :result) do
+      true | 'downgrade' | false
+      true | 'current' | false
+      true | 'upgrade' | true
+      false | 'downgrade' | false
+      false | 'current' | false
+      false | 'upgrade' | false
+    end
+
+    with_them do
+      before do
+        allow(helper).to receive(:experiment_enabled?).with(:contact_sales_btn_in_app).and_return(experiment_enabled)
+      end
+
+      subject { helper.show_contact_sales_button?(link_action) }
+
+      it { is_expected.to eq(result) }
+    end
+  end
 end

lib/gitlab/experimentation.rb

@@ -56,6 +56,9 @@ module Gitlab
       },
       terms_opt_in: {
         tracking_category: 'Growth::Acquisition::Experiment::TermsOptIn'
+      },
+      contact_sales_btn_in_app: {
+        tracking_category: 'Growth::Conversion::Experiment::ContactSalesInApp'
       }
     }.freeze
 

locale/gitlab.pot

@@ -3827,6 +3827,9 @@ msgstr ""
 msgid "BillingPlans|per user"
 msgstr ""
 
+msgid "BillingPlan|Contact sales"
+msgstr ""
+
 msgid "BillingPlan|Upgrade"
 msgstr ""
 

spec/helpers/application_helper_spec.rb

@@ -168,6 +168,19 @@ RSpec.describe ApplicationHelper do
     it { expect(helper.active_when(false)).to eq(nil) }
   end
 
+  describe '#contact_sales_url' do
+    subject { helper.contact_sales_url }
+
+    it 'passes a smoke test' do
+      is_expected.to eq('https://about.gitlab.com/sales')
+    end
+
+    it 'changes if promo_url changes' do
+      allow(helper).to receive(:promo_url).and_return('https://somewhere.else')
+      is_expected.to eq('https://somewhere.else/sales')
+    end
+  end
+
   describe '#support_url' do
     context 'when alternate support url is specified' do
       let(:alternate_url) { 'http://company.example.com/getting-help' }