Feature: delegate all open discussions to Issue

When a merge request can only be merged when all discussions are
resolved. This feature allows to easily delegate those discussions to a
new issue, while marking them as resolved in the merge request.

The user is presented with a new issue, prepared with mentions of all
unresolved discussions, including the first unresolved note of the
discussion, time and link to the note.

When the issue is created, the discussions in the merge request will get
a system note directing the user to the newly created issue.

1 files changed, 26 insertions, 0 deletions

diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb
index 5700f800c2e..553983575c4 100644
--- a/spec/requests/api/issues_spec.rb
+++ b/spec/requests/api/issues_spec.rb
@@ -692,6 +692,32 @@ describe API::Issues, api: true  do
       ])
     end
 
+    context 'resolving issues in a merge request' do
+      let(:discussion) { Discussion.for_diff_notes([create(:diff_note_on_merge_request)]).first }
+      let(:merge_request) { discussion.noteable }
+      let(:project) { merge_request.source_project }
+      before do
+        project.team << [user, :master]
+        post api("/projects/#{project.id}/issues", user),
+             title: 'New Issue',
+             merge_request_for_resolving_discussions: merge_request.iid
+      end
+
+      it 'creates a new project issue' do
+        expect(response).to have_http_status(:created)
+      end
+
+      it 'resolves the discussions in a merge request' do
+        discussion.first_note.reload
+
+        expect(discussion.resolved?).to be(true)
+      end
+
+      it 'assigns a description to the issue mentioning the merge request' do
+        expect(json_response['description']).to include(merge_request.to_reference)
+      end
+    end
+
     context 'with due date' do
       it 'creates a new project issue' do
         due_date = 2.weeks.from_now.strftime('%Y-%m-%d')