1 files changed, 52 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/notes/destroy_spec.rb b/spec/requests/api/graphql/mutations/notes/destroy_spec.rb
new file mode 100644
index 00000000000..337a6e6f6e6
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/notes/destroy_spec.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Destroying a Note' do
+  include GraphqlHelpers
+
+  let!(:note) { create(:note) }
+  let(:mutation) do
+    variables = {
+      id: GitlabSchema.id_from_object(note).to_s
+    }
+
+    graphql_mutation(:destroy_note, variables)
+  end
+
+  def mutation_response
+    graphql_mutation_response(:destroy_note)
+  end
+
+  context 'when the user does not have permission' do
+    let(:current_user) { create(:user) }
+
+    it_behaves_like 'a mutation that returns top-level errors',
+                    errors: ['The resource that you are attempting to access does not exist or you don\'t have permission to perform this action']
+
+    it 'does not destroy the Note' do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.not_to change { Note.count }
+    end
+  end
+
+  context 'when the user has permission' do
+    let(:current_user) { note.author }
+
+    it_behaves_like 'a Note mutation when the given resource id is not for a Note'
+
+    it 'destroys the Note' do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.to change { Note.count }.by(-1)
+    end
+
+    it 'returns an empty Note' do
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(mutation_response).to have_key('note')
+      expect(mutation_response['note']).to be_nil
+    end
+  end
+end