diff --git a/tests/unit/gui/test_log_panel.py b/tests/unit/gui/test_log_panel.py
index 962ad6df..8b8df096 100644
--- a/tests/unit/gui/test_log_panel.py
+++ b/tests/unit/gui/test_log_panel.py
@@ -29,3 +29,14 @@ def test_notification_requests_reveal(qtbot):
     with qtbot.waitSignal(panel.reveal_requested, timeout=1000):
         panel.show_notification(title="Boom", message="it broke")
     assert panel.notification._title.text() == "Boom"
+
+
+def test_sticky_notification_is_dismissable(qtbot):
+    # Sticky means "no auto-clear timer", not "undismissable": the Clear
+    # button must stay so users can get rid of stale warnings by hand.
+    panel = LogPanel()
+    qtbot.addWidget(panel)
+    panel.show_notification(title="Warn", message="stuck", level="warning", sticky=True)
+    assert not panel.notification._clear_button.isHidden()
+    panel.notification._clear_button.click()
+    assert not panel.notification.isVisible()