Add class for group level analytics

Add specs for group level

Update entities

Update base classes

Add groups-centric changes

Update plan and review stage

Add summary classes

Add summary spec

Update specs files

Add to specs test cases for group

Add changelog entry

Add group serializer

Fix typo

Fix typo

Add fetching namespace in sql query

Update specs

Add rubocop fix

Add rubocop fix

Modify method to be in sync with code review

Add counting deploys from subgroup

To group summary stage

Add subgroups handling

In group stage summary

Add additional spec

Add additional specs

Add more precise inheritance

Add attr reader to group level

Fix rubocop offence

Fix problems with specs

Add cr remarks

Renaming median method and a lot of calls in specs

Move spec setup

Rename method in specs

Add code review remarks regarding module

Add proper module name

9 files changed, 60 insertions, 14 deletions

diff --git a/spec/models/cycle_analytics/code_spec.rb b/spec/models/cycle_analytics/code_spec.rb
index db6e70973ae..808659552ff 100644
--- a/spec/models/cycle_analytics/code_spec.rb
+++ b/spec/models/cycle_analytics/code_spec.rb
@@ -38,7 +38,7 @@ describe 'CycleAnalytics#code' do
         merge_merge_requests_closing_issue(user, project, issue)
         deploy_master(user, project)
 
-        expect(subject[:code].median).to be_nil
+        expect(subject[:code].project_median).to be_nil
       end
     end
   end
@@ -68,7 +68,7 @@ describe 'CycleAnalytics#code' do
 
         merge_merge_requests_closing_issue(user, project, issue)
 
-        expect(subject[:code].median).to be_nil
+        expect(subject[:code].project_median).to be_nil
       end
     end
   end
diff --git a/spec/models/cycle_analytics/group_level_spec.rb b/spec/models/cycle_analytics/group_level_spec.rb
new file mode 100644
index 00000000000..70c370bc39d
--- /dev/null
+++ b/spec/models/cycle_analytics/group_level_spec.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe CycleAnalytics::GroupLevel do
+  let(:group) { create(:group)}
+  let(:project) { create(:project, :repository, namespace: group) }
+  let(:from_date) { 10.days.ago }
+  let(:user) { create(:user, :admin) }
+  let(:issue) { create(:issue, project: project, created_at: 2.days.ago) }
+  let(:milestone) { create(:milestone, project: project) }
+  let(:mr) { create_merge_request_closing_issue(user, project, issue, commit_message: "References #{issue.to_reference}") }
+  let(:pipeline) { create(:ci_empty_pipeline, status: 'created', project: project, ref: mr.source_branch, sha: mr.source_branch_sha, head_pipeline_of: mr) }
+
+  subject { described_class.new(options: { from: from_date, group: group, current_user: user }) }
+
+  describe '#permissions' do
+    it 'returns permissions' do
+      expect(subject.permissions.values.uniq).to eq([true])
+    end
+  end
+
+  describe '#stats' do
+    before do
+      allow_any_instance_of(Gitlab::ReferenceExtractor).to receive(:issues).and_return([issue])
+
+      create_cycle(user, project, issue, mr, milestone, pipeline)
+      deploy_master(user, project)
+    end
+
+    it 'returns medians for each stage for a specific group' do
+      expect(subject.no_stats?).to eq(false)
+    end
+  end
+
+  describe '#summary' do
+    before do
+      create_cycle(user, project, issue, mr, milestone, pipeline)
+      deploy_master(user, project)
+    end
+
+    it 'returns medians for each stage for a specific group' do
+      expect(subject.summary.map { |summary| summary[:value] }).to contain_exactly(1, 1)
+    end
+  end
+end
diff --git a/spec/models/cycle_analytics/issue_spec.rb b/spec/models/cycle_analytics/issue_spec.rb
index 4ccbdf29df6..8cdf83b1292 100644
--- a/spec/models/cycle_analytics/issue_spec.rb
+++ b/spec/models/cycle_analytics/issue_spec.rb
@@ -43,7 +43,7 @@ describe 'CycleAnalytics#issue' do
       create_merge_request_closing_issue(user, project, issue)
       merge_merge_requests_closing_issue(user, project, issue)
 
-      expect(subject[:issue].median).to be_nil
+      expect(subject[:issue].project_median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/plan_spec.rb b/spec/models/cycle_analytics/plan_spec.rb
index c99c38e9cf3..28ad9bd194d 100644
--- a/spec/models/cycle_analytics/plan_spec.rb
+++ b/spec/models/cycle_analytics/plan_spec.rb
@@ -47,7 +47,7 @@ describe 'CycleAnalytics#plan' do
       create_merge_request_closing_issue(user, project, issue, source_branch: branch_name)
       merge_merge_requests_closing_issue(user, project, issue)
 
-      expect(subject[:issue].median).to be_nil
+      expect(subject[:issue].project_median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/production_spec.rb b/spec/models/cycle_analytics/production_spec.rb
index ddd199362d1..613c1786540 100644
--- a/spec/models/cycle_analytics/production_spec.rb
+++ b/spec/models/cycle_analytics/production_spec.rb
@@ -41,7 +41,7 @@ describe 'CycleAnalytics#production' do
       MergeRequests::MergeService.new(project, user).execute(merge_request)
       deploy_master(user, project)
 
-      expect(subject[:production].median).to be_nil
+      expect(subject[:production].project_median).to be_nil
     end
   end
 
@@ -52,7 +52,7 @@ describe 'CycleAnalytics#production' do
       MergeRequests::MergeService.new(project, user).execute(merge_request)
       deploy_master(user, project, environment: 'staging')
 
-      expect(subject[:production].median).to be_nil
+      expect(subject[:production].project_median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/project_level_spec.rb b/spec/models/cycle_analytics/project_level_spec.rb
index 77bd0bfeb9c..4de01b1c679 100644
--- a/spec/models/cycle_analytics/project_level_spec.rb
+++ b/spec/models/cycle_analytics/project_level_spec.rb
@@ -23,7 +23,7 @@ describe CycleAnalytics::ProjectLevel do
 
     it 'returns every median for each stage for a specific project' do
       values = described_class::STAGES.each_with_object({}) do |stage_name, hsh|
-        hsh[stage_name] = subject[stage_name].median.presence
+        hsh[stage_name] = subject[stage_name].project_median.presence
       end
 
       expect(subject.all_medians_by_stage).to eq(values)
diff --git a/spec/models/cycle_analytics/review_spec.rb b/spec/models/cycle_analytics/review_spec.rb
index 63c481ed465..ef88fd86340 100644
--- a/spec/models/cycle_analytics/review_spec.rb
+++ b/spec/models/cycle_analytics/review_spec.rb
@@ -28,7 +28,7 @@ describe 'CycleAnalytics#review' do
     it "returns nil" do
       MergeRequests::MergeService.new(project, user).execute(create(:merge_request))
 
-      expect(subject[:review].median).to be_nil
+      expect(subject[:review].project_median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/staging_spec.rb b/spec/models/cycle_analytics/staging_spec.rb
index c134b97553f..571792559d8 100644
--- a/spec/models/cycle_analytics/staging_spec.rb
+++ b/spec/models/cycle_analytics/staging_spec.rb
@@ -45,7 +45,7 @@ describe 'CycleAnalytics#staging' do
       MergeRequests::MergeService.new(project, user).execute(merge_request)
       deploy_master(user, project)
 
-      expect(subject[:staging].median).to be_nil
+      expect(subject[:staging].project_median).to be_nil
     end
   end
 
@@ -56,7 +56,7 @@ describe 'CycleAnalytics#staging' do
       MergeRequests::MergeService.new(project, user).execute(merge_request)
       deploy_master(user, project, environment: 'staging')
 
-      expect(subject[:staging].median).to be_nil
+      expect(subject[:staging].project_median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/test_spec.rb b/spec/models/cycle_analytics/test_spec.rb
index a6ea73b2699..7b3001d2bd8 100644
--- a/spec/models/cycle_analytics/test_spec.rb
+++ b/spec/models/cycle_analytics/test_spec.rb
@@ -36,7 +36,7 @@ describe 'CycleAnalytics#test' do
 
       merge_merge_requests_closing_issue(user, project, issue)
 
-      expect(subject[:test].median).to be_nil
+      expect(subject[:test].project_median).to be_nil
     end
   end
 
@@ -47,7 +47,7 @@ describe 'CycleAnalytics#test' do
       pipeline.run!
       pipeline.succeed!
 
-      expect(subject[:test].median).to be_nil
+      expect(subject[:test].project_median).to be_nil
     end
   end
 
@@ -62,7 +62,7 @@ describe 'CycleAnalytics#test' do
 
       merge_merge_requests_closing_issue(user, project, issue)
 
-      expect(subject[:test].median).to be_nil
+      expect(subject[:test].project_median).to be_nil
     end
   end
 
@@ -77,7 +77,7 @@ describe 'CycleAnalytics#test' do
 
       merge_merge_requests_closing_issue(user, project, issue)
 
-      expect(subject[:test].median).to be_nil
+      expect(subject[:test].project_median).to be_nil
     end
   end
 end