Unify burnup and burndown chart license checks

These features would always go together so we just use one for all of
these

doc/user/project/milestones/index.md

@@ -154,9 +154,9 @@ For project milestones in [GitLab Starter](https://about.gitlab.com/pricing/), a
 
 ![burndown chart](img/burndown_chart.png)
 
-### Group Burndown Charts **(PREMIUM)**
+### Group Burndown Charts **(STARTER)**
 
-For group milestones in [GitLab Premium](https://about.gitlab.com/pricing/), a [burndown chart](burndown_charts.md) is in the milestone view, showing the progress of completing a milestone.
+For group milestones in [GitLab Starter](https://about.gitlab.com/pricing/), a [burndown chart](burndown_charts.md) is in the milestone view, showing the progress of completing a milestone.
 
 ### Milestone sidebar
 

ee/app/helpers/ee/timeboxes_helper.rb

@@ -3,25 +3,25 @@
 module EE
   module TimeboxesHelper
     def burndown_chart(milestone)
-      if milestone.supports_burndown_charts?
+      if milestone.supports_milestone_charts?
         issues = milestone.issues_visible_to_user(current_user)
         Burndown.new(issues, milestone.start_date, milestone.due_date)
       end
     end
 
     def can_generate_chart?(milestone, burndown)
-      return false unless milestone.supports_burndown_charts?
+      return false unless milestone.supports_milestone_charts?
 
       burndown&.valid? && !burndown&.empty?
     end
 
     def show_burndown_charts_promotion?(milestone)
-      milestone.is_a?(EE::Milestone) && !milestone.supports_burndown_charts? && show_promotions?
+      milestone.is_a?(EE::Milestone) && !milestone.supports_milestone_charts? && show_promotions?
     end
 
     def show_burndown_placeholder?(milestone, warning)
       return false if cookies['hide_burndown_message'].present?
-      return false unless milestone.supports_burndown_charts?
+      return false unless milestone.supports_milestone_charts?
 
       warning.nil? && can?(current_user, :admin_milestone, milestone.resource_parent)
     end

ee/app/models/ee/milestone.rb

@@ -14,13 +14,7 @@ module EE
       resource_parent&.feature_available?(:issue_weights)
     end
 
-    def supports_burndown_charts?
-      feature_name = group_milestone? ? :group_burndown_charts : :burndown_charts
-
-      resource_parent&.feature_available?(feature_name) && supports_weight?
-    end
-
-    def supports_burnup_charts?
+    def supports_milestone_charts?
       resource_parent&.feature_available?(:milestone_charts) && supports_weight?
     end
 

ee/app/models/license.rb

@@ -11,7 +11,6 @@ class License < ApplicationRecord
   EES_FEATURES = %i[
     audit_events
     blocked_issues
-    burndown_charts
     code_owners
     code_review_analytics
     contribution_analytics
@@ -19,7 +18,6 @@ class License < ApplicationRecord
     elastic_search
     group_activity_analytics
     group_bulk_edit
-    group_burndown_charts
     group_webhooks
     issuable_default_templates
     issue_weights
@@ -157,7 +155,6 @@ class License < ApplicationRecord
   # introduced.
   EARLY_ADOPTER_FEATURES = %i[
     audit_events
-    burndown_charts
     contribution_analytics
     cross_project_pipelines
     deploy_board

ee/app/services/milestones/burnup_chart_service.rb

@@ -17,7 +17,7 @@ class Milestones::BurnupChartService
   end
 
   def execute
-    return ServiceResponse.error(message: _('Milestone does not support burnup charts')) unless milestone.supports_burnup_charts?
+    return ServiceResponse.error(message: _('Milestone does not support burnup charts')) unless milestone.supports_milestone_charts?
     return ServiceResponse.error(message: _('Milestone must have a start and due date')) if milestone.start_date.blank? || milestone.due_date.blank?
     return ServiceResponse.error(message: _('Burnup chart could not be generated due to too many events')) if resource_events.num_tuples > EVENT_COUNT_LIMIT
 

ee/lib/ee/api/milestone_responses.rb

@@ -10,7 +10,7 @@ module EE
           def milestone_burndown_events_for(parent)
             milestone = parent.milestones.find(params[:milestone_id])
 
-            if milestone.supports_burndown_charts?
+            if milestone.supports_milestone_charts?
               issues = milestone.issues_visible_to_user(current_user)
               present Burndown.new(issues, milestone.start_date, milestone.due_date).as_json
             else
@@ -21,7 +21,7 @@ module EE
           def milestone_burnup_events_for(parent)
             milestone = parent.milestones.find(params[:milestone_id])
 
-            if milestone.supports_burndown_charts?
+            if milestone.supports_milestone_charts?
               present BurnupChartService.new(milestone: milestone, user: current_user).execute
             else
               render_api_error!("Milestone does not support burnup chart", 405)

ee/spec/features/burndown_charts_spec.rb

@@ -24,7 +24,7 @@ RSpec.describe 'Burndown charts', :js do
     end
 
     it 'presents burndown charts when available' do
-      stub_licensed_features(burndown_charts: true)
+      stub_licensed_features(milestone_charts: true)
 
       visit project_milestone_path(milestone.project, milestone)
 
@@ -33,7 +33,7 @@ RSpec.describe 'Burndown charts', :js do
     end
 
     it 'presents burndown charts promotion correctly' do
-      stub_licensed_features(burndown_charts: false)
+      stub_licensed_features(milestone_charts: false)
       allow(License).to receive(:current) { nil }
 
       visit project_milestone_path(milestone.project, milestone)
@@ -52,7 +52,7 @@ RSpec.describe 'Burndown charts', :js do
     end
 
     it 'presents burndown charts when available' do
-      stub_licensed_features(group_burndown_charts: true)
+      stub_licensed_features(milestone_charts: true)
 
       visit group_milestone_path(milestone.group, milestone)
 
@@ -61,7 +61,7 @@ RSpec.describe 'Burndown charts', :js do
     end
 
     it 'presents burndown charts promotion correctly' do
-      stub_licensed_features(group_burndown_charts: false)
+      stub_licensed_features(milestone_charts: false)
       allow(License).to receive(:current) { nil }
 
       visit group_milestone_path(milestone.group, milestone)

ee/spec/features/burnup_charts_spec.rb

@@ -30,7 +30,7 @@ RSpec.describe 'Burnup charts', :js do
 
   describe 'licensed feature available' do
     before do
-      stub_licensed_features(group_burndown_charts: true)
+      stub_licensed_features(milestone_charts: true)
     end
 
     it 'shows burnup chart, with a point per day' do
@@ -42,7 +42,7 @@ RSpec.describe 'Burnup charts', :js do
 
   describe 'licensed feature not available' do
     before do
-      stub_licensed_features(group_burndown_charts: false)
+      stub_licensed_features(milestone_charts: false)
     end
 
     it 'does not show burnup chart' do
@@ -54,7 +54,7 @@ RSpec.describe 'Burnup charts', :js do
 
   describe 'feature flag disabled' do
     before do
-      stub_licensed_features(group_burndown_charts: true)
+      stub_licensed_features(milestone_charts: true)
       stub_feature_flags(burnup_charts: false)
     end
 

ee/spec/features/projects/milestones/milestone_spec.rb

@@ -27,11 +27,11 @@ RSpec.describe 'Milestones on EE' do
              due_date: Date.tomorrow)
     end
 
-    context 'with the burndown chart feature available' do
+    context 'with the milestone charts feature available' do
       let(:issue_params) { { project: project, assignees: [user], author: user, milestone: milestone } }
 
       before do
-        stub_licensed_features(burndown_charts: true)
+        stub_licensed_features(milestone_charts: true)
       end
 
       it 'shows a burndown chart' do
@@ -123,9 +123,9 @@ RSpec.describe 'Milestones on EE' do
       end
     end
 
-    context 'with the burndown chart feature disabled' do
+    context 'with the milestone charts feature disabled' do
       before do
-        stub_licensed_features(burndown_charts: false)
+        stub_licensed_features(milestone_charts: false)
       end
 
       include_examples 'burndown charts disabled'