@Test
public void getFilesFromDriveTest() throws IOException {

    doReturn(mockedRequest).when(mockedDriveService).generateRequest(anyString(), anyString());
    driveHelper.getFilesFromDrive(anyString(), anyString());
    verify(mockedDriveService, times(1)).fetchAllFiles(any(Drive.Files.List.class), ArgumentMatchers.anyList());
    clearInvocations(mockedDriveService);
    driveHelper.getFilesFromDrive(null, null);
    verify(mockedDriveService, times(0)).fetchAllFiles(any(Drive.Files.List.class), ArgumentMatchers.anyList());
}