def METHOD_NAME(self):
    """
    Test the gold toggle is working.
    """
    self.assertTrue(self._widget.GoldDiffPlugin.isEnabled())
    self._widget.GoldDiffPlugin.GoldToggle.setChecked(QtCore.Qt.Checked)
    self._widget.GoldDiffPlugin.GoldToggle.clicked.emit(True)
    if self._window.devicePixelRatio() == 1:
        self.assertImage('testGold.png', window=self._widget.GoldDiffPlugin.GoldVTKWindow)