@Test
public void testCreateColumnHolderForColumnNamesWithoutTableNamesOnly() {

    // GIVEN
    final String column1 = "col1";
    final String column2 = "col2";
    // WHEN
    final ColumnsHolder columnsHolder = new ColumnsHolder(new String[] {
            column1, column2
    }, (final String n) -> n);
    // THEN
    final List<String> columns = columnsHolder.getColumns("foo");
    assertThat(columns, notNullValue());
    assertThat(columns.size(), equalTo(2));
    assertThat(columns, hasItem(column1));
    assertThat(columns, hasItem(column2));
}