@Test
public void isExecutable_CellsAndHeaderCellsSelected() {

    when(scenarioGridModelMock.getSelectedCells()).thenReturn(Arrays.asList(selectedCell));
    when(scenarioGridModelMock.getSelectedHeaderCells()).thenReturn(Arrays.asList(selectedCell2));
    assertFalse(handler.isExecutable(scenarioGridMock));
}