diff --git a/webui/src/web-components/sketch-monaco-view.test.ts b/webui/src/web-components/sketch-monaco-view.test.ts
index 7366153..538fbaf 100644
--- a/webui/src/web-components/sketch-monaco-view.test.ts
+++ b/webui/src/web-components/sketch-monaco-view.test.ts
@@ -60,3 +60,29 @@
   // The actual scroll preservation happens during runtime interactions
   expect(true).toBe(true); // Test passes if component mounts successfully with fixes
 });
+
+// Test keyboard shortcut functionality for comment submission
+test("Command+Enter and Ctrl+Enter keyboard shortcuts submit comments", async ({ mount }) => {
+  const component = await mount(CodeDiffEditor, {
+    props: {
+      originalCode: 'console.log("original");',
+      modifiedCode: 'console.log("modified");',
+    },
+  });  
+
+  await expect(component).toBeVisible();
+
+  // Test that the keyboard shortcut handler exists
+  const hasKeyboardHandler = await component.evaluate((node) => {
+    const monacoView = node as any;
+    
+    // Check if the handleCommentKeydown method exists
+    return typeof monacoView.handleCommentKeydown === 'function';
+  });
+
+  expect(hasKeyboardHandler).toBe(true);
+
+  // The actual keyboard event testing would require more complex setup
+  // with Monaco editor being fully loaded and comment UI being active.
+  // This test verifies the handler method is present.
+});