Merge branch 'feature/cycle-analytics-events' into 'master'

Cycle Analytics: Events per stage

Adds list of events to each stage:

- Issue: list of issues created in the last XX days, that have been labeled or added to a milestone.
- Plan: list of commits that reference for the fist time an issue from the last stage.
- Code: list of MR created in this stage
- Test: List of unique builds triggered by the commits.
- Review: List of MR merged
- Staging: List of deployed builds
- Production: list of issues with the time from idea to production

Fixes #23449 

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !6859

1 files changed, 140 insertions, 0 deletions

diff --git a/spec/requests/projects/cycle_analytics_events_spec.rb b/spec/requests/projects/cycle_analytics_events_spec.rb
new file mode 100644
index 00000000000..705dbb7d1c0
--- /dev/null
+++ b/spec/requests/projects/cycle_analytics_events_spec.rb
@@ -0,0 +1,140 @@
+require 'spec_helper'
+
+describe 'cycle analytics events' do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:issue) {  create(:issue, project: project, created_at: 2.days.ago) }
+
+  describe 'GET /:namespace/:project/cycle_analytics/events/issues' do
+    before do
+      project.team << [user, :developer]
+
+      allow_any_instance_of(Gitlab::ReferenceExtractor).to receive(:issues).and_return([issue])
+
+      3.times { create_cycle }
+      deploy_master
+
+      login_as(user)
+    end
+
+    it 'lists the issue events' do
+      get namespace_project_cycle_analytics_issue_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      first_issue_iid = Issue.order(created_at: :desc).pluck(:iid).first.to_s
+
+      expect(json_response['events'].first['iid']).to eq(first_issue_iid)
+    end
+
+    it 'lists the plan events' do
+      get namespace_project_cycle_analytics_plan_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      expect(json_response['events'].first['short_sha']).to eq(MergeRequest.last.commits.first.short_id)
+    end
+
+    it 'lists the code events' do
+      get namespace_project_cycle_analytics_code_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      first_mr_iid = MergeRequest.order(created_at: :desc).pluck(:iid).first.to_s
+
+      expect(json_response['events'].first['iid']).to eq(first_mr_iid)
+    end
+
+    it 'lists the test events' do
+      get namespace_project_cycle_analytics_test_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      expect(json_response['events'].first['date']).not_to be_empty
+    end
+
+    it 'lists the review events' do
+      get namespace_project_cycle_analytics_review_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      first_mr_iid = MergeRequest.order(created_at: :desc).pluck(:iid).first.to_s
+
+      expect(json_response['events'].first['iid']).to eq(first_mr_iid)
+    end
+
+    it 'lists the staging events' do
+      get namespace_project_cycle_analytics_staging_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      expect(json_response['events'].first['date']).not_to be_empty
+    end
+
+    it 'lists the production events' do
+      get namespace_project_cycle_analytics_production_path(project.namespace, project, format: :json)
+
+      expect(json_response['events']).not_to be_empty
+
+      first_issue_iid = Issue.order(created_at: :desc).pluck(:iid).first.to_s
+
+      expect(json_response['events'].first['iid']).to eq(first_issue_iid)
+    end
+
+    context 'specific branch' do
+      it 'lists the test events' do
+        branch = MergeRequest.first.source_branch
+
+        get namespace_project_cycle_analytics_test_path(project.namespace, project, format: :json, branch: branch)
+
+        expect(json_response['events']).not_to be_empty
+
+        expect(json_response['events'].first['date']).not_to be_empty
+      end
+    end
+
+    context 'with private project and builds' do
+      before do
+        ProjectMember.first.update(access_level: Gitlab::Access::GUEST)
+      end
+
+      it 'does not list the test events' do
+        get namespace_project_cycle_analytics_test_path(project.namespace, project, format: :json)
+
+        expect(response).to have_http_status(:not_found)
+      end
+
+      it 'does not list the staging events' do
+        get namespace_project_cycle_analytics_staging_path(project.namespace, project, format: :json)
+
+        expect(response).to have_http_status(:not_found)
+      end
+
+      it 'lists the issue events' do
+        get namespace_project_cycle_analytics_issue_path(project.namespace, project, format: :json)
+
+        expect(response).to have_http_status(:ok)
+      end
+    end
+  end
+
+  def json_response
+    JSON.parse(response.body)
+  end
+
+  def create_cycle
+    milestone = create(:milestone, project: project)
+    issue.update(milestone: milestone)
+    mr = create_merge_request_closing_issue(issue)
+
+    pipeline = create(:ci_empty_pipeline, status: 'created', project: project, ref: mr.source_branch, sha: mr.source_branch_sha)
+    pipeline.run
+
+    create(:ci_build, pipeline: pipeline, status: :success, author: user)
+    create(:ci_build, pipeline: pipeline, status: :success, author: user)
+
+    merge_merge_requests_closing_issue(issue)
+
+    ProcessCommitWorker.new.perform(project.id, user.id, mr.commits.last.sha)
+  end
+end