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# Copyright (c) 2022, PostgreSQL Global Development Group
use strict;
use warnings;
use PostgreSQL::Test::Cluster;
use PostgreSQL::Test::Utils;
use Test::More;
if ($ENV{with_icu} ne 'yes')
{
plan skip_all => 'ICU not supported by this build';
}
my $node1 = PostgreSQL::Test::Cluster->new('node1');
$node1->init;
$node1->start;
$node1->safe_psql('postgres',
q{CREATE DATABASE dbicu LOCALE_PROVIDER icu LOCALE 'C' ICU_LOCALE 'en-u-kf-upper' ENCODING 'UTF8' TEMPLATE template0});
$node1->safe_psql('dbicu',
q{
CREATE COLLATION upperfirst (provider = icu, locale = 'en-u-kf-upper');
CREATE TABLE icu (def text, en text COLLATE "en-x-icu", upfirst text COLLATE upperfirst);
INSERT INTO icu VALUES ('a', 'a', 'a'), ('b', 'b', 'b'), ('A', 'A', 'A'), ('B', 'B', 'B');
});
is($node1->safe_psql('dbicu', q{SELECT def FROM icu ORDER BY def}),
qq(A
a
B
b),
'sort by database default locale');
is($node1->safe_psql('dbicu', q{SELECT def FROM icu ORDER BY def COLLATE "en-x-icu"}),
qq(a
A
b
B),
'sort by explicit collation standard');
is($node1->safe_psql('dbicu', q{SELECT def FROM icu ORDER BY en COLLATE upperfirst}),
qq(A
a
B
b),
'sort by explicit collation upper first');
# Test error cases in CREATE DATABASE involving locale-related options
my ($ret, $stdout, $stderr) = $node1->psql('postgres',
q{CREATE DATABASE dbicu LOCALE_PROVIDER icu TEMPLATE template0});
isnt($ret, 0, "ICU locale must be specified for ICU provider: exit code not 0");
like($stderr, qr/ERROR: ICU locale must be specified/, "ICU locale must be specified for ICU provider: error message");
done_testing();
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