🧩 Background

The component/utility at components/dashboard/Heatmap.tsx needs isolated unit and integration testing. This issue focuses specifically on Interactive Tooltips, Cursor Hovers & Touch Event Propagation. Interactive elements require robust validation of callback coordinates and display transitions.

🎯 Objective

Create the new test file components/dashboard/Heatmap.mouse-interactivity.test.tsx targeting Interactive Tooltips, Cursor Hovers & Touch Event Propagation and achieve complete coverage on the specified conditions.

📁 Files to touch

• components/dashboard/Heatmap.mouse-interactivity.test.tsx (new)

🛠️ Implementation steps

• Trigger simulated mouseenter/hover gestures on active segments or interactive nodes.
• Verify that responsive tooltip layouts display at computed coordinates.
• Test custom click/touch gestures and ensure click events propagate correctly.
• Assert appropriate cursor style classes (like pointer) are applied on hover.
• Check that mouseleave events successfully hide temporary overlay visuals.

✅ Definition of done

• 5 test cases.
• vitest run passes.