@Test
public void testDropTableColumnsIfExistWhenNoKeysAreSupplied() throws Exception {

    Connection conn = connectionMock;
    String tableName = "tableName";
    List<String> columns = new ArrayList<String>();
    DbUpgradeUtils.dropTableColumnsIfExist(conn, tableName, columns);
    verify(daoMock, times(0)).columnExists(eq(conn), eq(tableName), anyString());
    verify(daoMock, times(0)).dropColumn(eq(conn), eq(tableName), anyString());
}