Expose comments on Noteables in GraphQL

This exposes `Note`s on Issues & MergeRequests using a
`Types::Notes::NoteableType` in GraphQL.

Exposing notes on a new type can be done by implementing the
`NoteableType` interface on the type. The presented object should
be a `Noteable`.

1 files changed, 19 insertions, 0 deletions

diff --git a/spec/policies/note_policy_spec.rb b/spec/policies/note_policy_spec.rb
index 4be7a0266d1..bcf021f1dfd 100644
--- a/spec/policies/note_policy_spec.rb
+++ b/spec/policies/note_policy_spec.rb
@@ -133,6 +133,25 @@ describe NotePolicy do
           end
         end
       end
+
+      context 'for discussions' do
+        let(:policy) { described_class.new(user, note.discussion) }
+
+        it 'allows the author to manage the discussion' do
+          expect(policy).to be_allowed(:admin_note)
+          expect(policy).to be_allowed(:resolve_note)
+          expect(policy).to be_allowed(:read_note)
+          expect(policy).to be_allowed(:award_emoji)
+        end
+
+        context 'when the user does not have access to the noteable' do
+          before do
+            noteable.update_attribute(:confidential, true)
+          end
+
+          it_behaves_like 'a discussion with a private noteable'
+        end
+      end
     end
   end
 end