@Override
    public Boolean getNullableResult(final ResultSet resultSet, final String columnName) throws SQLException {
        return resultSet.getBoolean(columnName);
    }
@Test
    public void getNullableResultTest() {
        final PostgreSQLBooleanHandler postgreSQLBooleanHandler = new PostgreSQLBooleanHandler();
        final ResultSet resultSet = mock(ResultSet.class);
        Assertions.assertDoesNotThrow(() -> postgreSQLBooleanHandler.getNullableResult(resultSet, 1));
        Assertions.assertDoesNotThrow(() -> postgreSQLBooleanHandler.getNullableResult(resultSet, "column"));
        final CallableStatement callableStatement = mock(CallableStatement.class);
        Assertions.assertDoesNotThrow(() -> postgreSQLBooleanHandler.getNullableResult(callableStatement, 1));
    }