Expose 'marked_for_deletion_on' attribute in Projects API

This change exposes the 'marked_for_deletion_on'
attribute in Projects API response

doc/api/projects.md

@@ -162,6 +162,8 @@ When the user is authenticated and `simple` is not set this returns something li
     "merge_method": "merge",
     "autoclose_referenced_issues": true,
     "suggestion_commit_message": null,
+    "marked_for_deletion_at": "2020-04-03",
+    "marked_for_deletion_on": "2020-04-03",
     "statistics": {
       "commit_count": 37,
       "storage_size": 1038090,
@@ -406,6 +408,8 @@ This endpoint supports [keyset pagination](README.md#keyset-based-pagination) fo
     "merge_method": "merge",
     "autoclose_referenced_issues": true,
     "suggestion_commit_message": null,
+    "marked_for_deletion_at": "2020-04-03",
+    "marked_for_deletion_on": "2020-04-03",
     "statistics": {
       "commit_count": 37,
       "storage_size": 1038090,
@@ -870,6 +874,8 @@ GET /projects/:id
   "service_desk_address": null,
   "autoclose_referenced_issues": true,
   "suggestion_commit_message": null,
+  "marked_for_deletion_at": "2020-04-03",
+  "marked_for_deletion_on": "2020-04-03",
   "statistics": {
     "commit_count": 37,
     "storage_size": 1038090,

ee/changelogs/unreleased/212937-marked_for_deletion_on-not-consistent-with-marked_for_deletion_.yml

+---
+title: Expose 'marked_for_deletion_on' attribute in Projects API
+merge_request: 28754
+author:
+type: added

ee/lib/ee/api/entities/project.rb

@@ -19,6 +19,9 @@ module EE
           expose :service_desk_enabled, if: ->(project, _) { project.feature_available?(:service_desk) }
           expose :service_desk_address, if: ->(project, _) { project.feature_available?(:service_desk) }
           expose :marked_for_deletion_at, if: ->(project, _) { project.feature_available?(:adjourned_deletion_for_projects_and_groups) }
+          expose :marked_for_deletion_on, if: ->(project, _) { project.feature_available?(:adjourned_deletion_for_projects_and_groups) } do |project, _|
+            project.marked_for_deletion_at
+          end
         end
       end
     end

ee/spec/requests/api/projects_spec.rb

@@ -180,21 +180,49 @@ describe API::Projects do
       end
     end
 
-    describe 'marked_for_deletion attribute' do
-      it 'exposed when the feature is available' do
-        stub_licensed_features(adjourned_deletion_for_projects_and_groups: true)
+    context 'project soft-deletion' do
+      subject { get api("/projects/#{project.id}", user) }
 
-        get api("/projects/#{project.id}", user)
+      let(:project) do
+        create(:project, :public, archived: true, marked_for_deletion_at: 1.day.ago, deleting_user: user)
+      end
+
+      describe 'marked_for_deletion_at attribute' do
+        it 'exposed when the feature is available' do
+          stub_licensed_features(adjourned_deletion_for_projects_and_groups: true)
+
+          subject
+
+          expect(json_response).to have_key 'marked_for_deletion_at'
+          expect(Date.parse(json_response['marked_for_deletion_at'])).to eq(project.marked_for_deletion_at)
+        end
+
+        it 'not exposed when the feature is not available' do
+          stub_licensed_features(adjourned_deletion_for_projects_and_groups: false)
 
-        expect(json_response).to have_key 'marked_for_deletion_at'
+          subject
+
+          expect(json_response).not_to have_key 'marked_for_deletion_at'
+        end
       end
 
-      it 'not exposed when the feature is not available' do
-        stub_licensed_features(adjourned_deletion_for_projects_and_groups: false)
+      describe 'marked_for_deletion_on attribute' do
+        it 'exposed when the feature is available' do
+          stub_licensed_features(adjourned_deletion_for_projects_and_groups: true)
 
-        get api("/projects/#{project.id}", user)
+          subject
 
-        expect(json_response).not_to have_key 'marked_for_deletion_at'
+          expect(json_response).to have_key 'marked_for_deletion_on'
+          expect(Date.parse(json_response['marked_for_deletion_on'])).to eq(project.marked_for_deletion_at)
+        end
+
+        it 'not exposed when the feature is not available' do
+          stub_licensed_features(adjourned_deletion_for_projects_and_groups: false)
+
+          subject
+
+          expect(json_response).not_to have_key 'marked_for_deletion_on'
+        end
       end
     end
   end
@@ -621,6 +649,7 @@ describe API::Projects do
         expect(response).to have_gitlab_http_status(:created)
         expect(json_response['archived']).to be_falsey
         expect(json_response['marked_for_deletion_at']).to be_falsey
+        expect(json_response['marked_for_deletion_on']).to be_falsey
       end
 
       it 'returns error if project is already being deleted' do