更新

app/tests/test_diagnosis_drawer_visual.py

@@ -639,6 +639,23 @@ def test_readonly_is_an_independent_vertical_page_flow(
     application.processEvents()
 
 
+def test_readonly_scroll_keeps_close_controls_reachable(application: QApplication) -> None:
+    dialog = _open_dialog(application, (760, 520), mode="readonly")
+    header_before = dialog.readonly_header.geometry()
+    scroll_bar = dialog.readonly_scroll.verticalScrollBar()
+
+    assert scroll_bar.maximum() > 0
+    assert dialog.readonly_close_button.isVisibleTo(dialog)
+    scroll_bar.setValue(scroll_bar.maximum())
+    application.processEvents()
+
+    assert dialog.readonly_header.geometry() == header_before
+    assert dialog.readonly_close_button.isVisibleTo(dialog)
+    dialog.readonly_close_button.click()
+    application.processEvents()
+    assert not dialog.isVisible()
+
+
 @pytest.mark.parametrize("size", [(1024, 640), (1440, 900)])
 @pytest.mark.parametrize("mode", ["edit", "viewOnly"])
 def test_drawer_is_full_height_rtl_and_sixty_percent_wide(