@Test
public void perform_CellsSelected() {

    when(scenarioGridModelMock.getSelectedCells()).thenReturn(Arrays.asList(selectedCell, selectedCell2));
    when(scenarioGridModelMock.getSelectedHeaderCells()).thenReturn(Collections.emptyList());
    when(scenarioGridModelMock.getSelectedCellsOrigin()).thenReturn(selectedCell);
    assertFalse(handler.perform(scenarioGridMock, false, false));
    verify(scenarioContextMenuRegistry, never()).manageRightClick(any(), anyInt(), anyInt(), anyInt(), anyInt(), anyBoolean());
}