--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use Test::More;
+
+use SQL::Abstract;
+
+my @cases =
+ (
+ {
+ given => \'colA DESC',
+ expects => ' ORDER BY colA DESC',
+ expects_quoted => ' ORDER BY colA DESC',
+ },
+ {
+ given => 'colA',
+ expects => ' ORDER BY colA',
+ expects_quoted => ' ORDER BY `colA`',
+ },
+ {
+ given => [qw/colA colB/],
+ expects => ' ORDER BY colA, colB',
+ expects_quoted => ' ORDER BY `colA`, `colB`',
+ },
+ {
+ given => {-asc => 'colA'},
+ expects => ' ORDER BY colA ASC',
+ expects_quoted => ' ORDER BY `colA` ASC',
+ },
+ {
+ given => {-desc => 'colB'},
+ expects => ' ORDER BY colB DESC',
+ expects_quoted => ' ORDER BY `colB` DESC',
+ },
+ {
+ given => [{-asc => 'colA'}, {-desc => 'colB'}],
+ expects => ' ORDER BY colA ASC, colB DESC',
+ expects_quoted => ' ORDER BY `colA` ASC, `colB` DESC',
+ },
+ );
+
+my $sql = SQL::Abstract->new;
+my $sqlq = SQL::Abstract->new({quote_char => '`'});
+
+plan tests => (scalar(@cases) * 2);
+
+for my $case( @cases){
+ is($sql->_order_by($case->{given}), $case->{expects});
+ is($sqlq->_order_by($case->{given}), $case->{expects_quoted});
+}