1 files changed, 8 insertions, 0 deletions
diff --git a/spec/lib/gitlab/time_tracking_formatter_spec.rb b/spec/lib/gitlab/time_tracking_formatter_spec.rb
index aa755d64a7a..b3372f676d4 100644
--- a/spec/lib/gitlab/time_tracking_formatter_spec.rb
+++ b/spec/lib/gitlab/time_tracking_formatter_spec.rb
@@ -28,6 +28,14 @@ RSpec.describe Gitlab::TimeTrackingFormatter, feature_category: :team_planning d
       end
     end
 
+    context 'when the duration is nil' do
+      let(:duration_string) { nil }
+
+      it 'returns nil' do
+        expect(subject).to be_nil
+      end
+    end
+
     context 'when the duration is zero' do
       let(:duration_string) { '0h' }