From e144369009f3404072f7e0f969f7cded93195a01 Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Fri, 14 Feb 2020 00:09:07 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 .../services/merge_requests/create_service_spec.rb | 40 +++++++++++++++++++
 .../services/merge_requests/update_service_spec.rb | 46 ++++++++++++++++++++++
 2 files changed, 86 insertions(+)

(limited to 'spec/services/merge_requests')

diff --git a/spec/services/merge_requests/create_service_spec.rb b/spec/services/merge_requests/create_service_spec.rb
index 8490127058c..aebead481ce 100644
--- a/spec/services/merge_requests/create_service_spec.rb
+++ b/spec/services/merge_requests/create_service_spec.rb
@@ -291,6 +291,46 @@ describe MergeRequests::CreateService, :clean_gitlab_redis_shared_state do
 
         expect { service.execute }.to change { counter.read(:create) }.by(1)
       end
+
+      context 'after_save callback to store_mentions' do
+        let(:labels) { create_pair(:label, project: project) }
+        let(:milestone) { create(:milestone, project: project) }
+        let(:req_opts) { { source_branch: 'feature', target_branch: 'master' } }
+
+        context 'when mentionable attributes change' do
+          let(:opts) { { title: 'Title', description: "Description with #{user.to_reference}" }.merge(req_opts) }
+
+          it 'saves mentions' do
+            expect_next_instance_of(MergeRequest) do |instance|
+              expect(instance).to receive(:store_mentions!).and_call_original
+            end
+            expect(merge_request.user_mentions.count).to eq 1
+          end
+        end
+
+        context 'when mentionable attributes do not change' do
+          let(:opts) { { label_ids: labels.map(&:id), milestone_id: milestone.id }.merge(req_opts) }
+
+          it 'does not call store_mentions' do
+            expect_next_instance_of(MergeRequest) do |instance|
+              expect(instance).not_to receive(:store_mentions!).and_call_original
+            end
+            expect(merge_request.valid?).to be false
+            expect(merge_request.user_mentions.count).to eq 0
+          end
+        end
+
+        context 'when save fails' do
+          let(:opts) { { label_ids: labels.map(&:id), milestone_id: milestone.id } }
+
+          it 'does not call store_mentions' do
+            expect_next_instance_of(MergeRequest) do |instance|
+              expect(instance).not_to receive(:store_mentions!).and_call_original
+            end
+            expect(merge_request.valid?).to be false
+          end
+        end
+      end
     end
 
     it_behaves_like 'new issuable record that supports quick actions' do
diff --git a/spec/services/merge_requests/update_service_spec.rb b/spec/services/merge_requests/update_service_spec.rb
index baa0ecf27e3..f295f3c4a81 100644
--- a/spec/services/merge_requests/update_service_spec.rb
+++ b/spec/services/merge_requests/update_service_spec.rb
@@ -162,6 +162,52 @@ describe MergeRequests::UpdateService, :mailer do
       end
     end
 
+    context 'after_save callback to store_mentions' do
+      let(:merge_request) { create(:merge_request, title: 'Old title', description: "simple description", source_branch: 'test', source_project: project, author: user) }
+      let(:labels) { create_pair(:label, project: project) }
+      let(:milestone) { create(:milestone, project: project) }
+      let(:req_opts) { { source_branch: 'feature', target_branch: 'master' } }
+
+      subject { MergeRequests::UpdateService.new(project, user, opts).execute(merge_request) }
+
+      context 'when mentionable attributes change' do
+        let(:opts) { { description: "Description with #{user.to_reference}" }.merge(req_opts) }
+
+        it 'saves mentions' do
+          expect(merge_request).to receive(:store_mentions!).and_call_original
+
+          expect { subject }.to change { MergeRequestUserMention.count }.by(1)
+
+          expect(merge_request.referenced_users).to match_array([user])
+        end
+      end
+
+      context 'when mentionable attributes do not change' do
+        let(:opts) { { label_ids: [label.id, label2.id], milestone_id: milestone.id }.merge(req_opts) }
+
+        it 'does not call store_mentions' do
+          expect(merge_request).not_to receive(:store_mentions!).and_call_original
+
+          expect { subject }.not_to change { MergeRequestUserMention.count }
+
+          expect(merge_request.referenced_users).to be_empty
+        end
+      end
+
+      context 'when save fails' do
+        let(:opts) { { title: '', label_ids: labels.map(&:id), milestone_id: milestone.id } }
+
+        it 'does not call store_mentions' do
+          expect(merge_request).not_to receive(:store_mentions!).and_call_original
+
+          expect { subject }.not_to change { MergeRequestUserMention.count }
+
+          expect(merge_request.referenced_users).to be_empty
+          expect(merge_request.valid?).to be false
+        end
+      end
+    end
+
     context 'merge' do
       let(:opts) do
         {
-- 
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