Add test for question title overflow (#31465)

e2e/test/scenarios/question/saved.cy.spec.js

@@ -250,4 +250,21 @@ describe("scenarios > question > saved", () => {
         assertColumnResized();
       });
   });
+
+  it("should always be possible to view the full title text of the saved question", () => {
+    visitQuestion(1);
+    const savedQuestionTitle = cy.findByTestId("saved-question-header-title");
+    savedQuestionTitle.clear();
+    savedQuestionTitle.type(
+      "Space, the final frontier. These are the voyages of the Starship Enterprise.",
+    );
+    savedQuestionTitle.blur();
+
+    savedQuestionTitle.should("be.visible").should($el => {
+      // clientHeight: height of the textarea
+      // scrollHeight: height of the text content, including content not visible on the screen
+      const heightDifference = $el[0].clientHeight - $el[0].scrollHeight;
+      expect(heightDifference).to.eq(0);
+    });
+  });
 });