MockComponentListener listener = new MockComponentListener(events, "popup");
BasicComboPopup popup = (BasicComboPopup) dialog.getComboBox().getAccessibleContext().getAccessibleChild(0);
popup.getList().addFocusListener(listener);
popup.getList().addMouseListener(listener);
assertEquals("a", mComboBox.getText());
events.assertEmpty();
mComboBox.setText("b");
events.assertNextMessageInList("popup:mouseEntered");
events.assertNextMessageInList("popup:mousePressed");
events.assertNextMessageInList("popup:mouseReleased");
}