1 files changed, 36 insertions, 0 deletions
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index fb03e320734..e0896d64c8f 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -2217,6 +2217,42 @@ describe User do
     end
   end
 
+  describe '#username_changed_hook' do
+    context 'for a new user' do
+      let(:user) { build(:user) }
+
+      it 'does not trigger system hook' do
+        expect(user).not_to receive(:system_hook_service)
+
+        user.save!
+      end
+    end
+
+    context 'for an existing user' do
+      let(:user) { create(:user, username: 'old-username') }
+
+      context 'when the username is changed' do
+        let(:new_username) { 'very-new-name' }
+
+        it 'triggers the rename system hook' do
+          system_hook_service = SystemHooksService.new
+          expect(system_hook_service).to receive(:execute_hooks_for).with(user, :rename)
+          expect(user).to receive(:system_hook_service).and_return(system_hook_service)
+
+          user.update_attributes!(username: new_username)
+        end
+      end
+
+      context 'when the username is not changed' do
+        it 'does not trigger system hook' do
+          expect(user).not_to receive(:system_hook_service)
+
+          user.update_attributes!(email: 'asdf@asdf.com')
+        end
+      end
+    end
+  end
+
   describe '#sync_attribute?' do
     let(:user) { described_class.new }