1 files changed, 64 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/notes/create/note_spec.rb b/spec/requests/api/graphql/mutations/notes/create/note_spec.rb
new file mode 100644
index 00000000000..14aaa430ac9
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/notes/create/note_spec.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Adding a Note' do
+  include GraphqlHelpers
+
+  set(:current_user) { create(:user) }
+  let(:noteable) { create(:merge_request, source_project: project, target_project: project) }
+  let(:project) { create(:project) }
+  let(:discussion) { nil }
+  let(:mutation) do
+    variables = {
+      noteable_id: GitlabSchema.id_from_object(noteable).to_s,
+      discussion_id: (GitlabSchema.id_from_object(discussion).to_s if discussion),
+      body: 'Body text'
+    }
+
+    graphql_mutation(:create_note, variables)
+  end
+
+  def mutation_response
+    graphql_mutation_response(:create_note)
+  end
+
+  it_behaves_like 'a Note mutation when the user does not have permission'
+
+  context 'when the user has permission' do
+    before do
+      project.add_developer(current_user)
+    end
+
+    it_behaves_like 'a Note mutation that creates a Note'
+
+    it_behaves_like 'a Note mutation when there are active record validation errors'
+
+    it_behaves_like 'a Note mutation when the given resource id is not for a Noteable'
+
+    it 'returns the note' do
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(mutation_response['note']['body']).to eq('Body text')
+    end
+
+    describe 'creating Notes in reply to a discussion' do
+      context 'when the user does not have permission to create notes on the discussion' do
+        let(:discussion) { create(:discussion_note).to_discussion }
+
+        it_behaves_like 'a mutation that returns top-level errors',
+                  errors: ["The discussion does not exist or you don't have permission to perform this action"]
+      end
+
+      context 'when the user has permission to create notes on the discussion' do
+        let(:discussion) { create(:discussion_note, project: project).to_discussion }
+
+        it 'creates a Note in a discussion' do
+          post_graphql_mutation(mutation, current_user: current_user)
+
+          expect(mutation_response['note']['discussion']['id']).to eq(discussion.to_global_id.to_s)
+        end
+      end
+    end
+  end
+end