--- /dev/null
+
+# Copyright (c) 2023, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+
+use FindBin;
+use lib "$FindBin::RealBin/..";
+
+use File::Copy;
+use File::Basename;
+use LdapServer;
+use PostgreSQL::Test::Utils;
+use PostgreSQL::Test::Cluster;
+use Test::More;
+
+if ($ENV{with_ldap} ne 'yes')
+{
+ plan skip_all => 'LDAP not supported by this build';
+}
+elsif ($ENV{PG_TEST_EXTRA} !~ /\bldap\b/)
+{
+ plan skip_all =>
+ 'Potentially unsafe test LDAP not enabled in PG_TEST_EXTRA';
+}
+elsif (!$LdapServer::setup)
+{
+ plan skip_all =>
+ "ldap tests not supported on $^O or dependencies not installed";
+}
+
+note "setting up LDAP server";
+
+my $ldap_rootpw = 'secret';
+my $ldap = LdapServer->new($ldap_rootpw, 'users'); # no anonymous auth
+$ldap->ldapadd_file('authdata.ldif');
+$ldap->ldapsetpw('uid=test1,dc=example,dc=net', 'secret1');
+$ldap->ldapsetpw('uid=test2,dc=example,dc=net', 'secret2');
+
+my ($ldap_server, $ldap_port, $ldap_basedn, $ldap_rootdn) =
+ $ldap->prop(qw(server port basedn rootdn));
+
+note "setting up PostgreSQL instance";
+
+my $node = PostgreSQL::Test::Cluster->new('node');
+$node->init;
+$node->append_conf('postgresql.conf', "log_connections = on\n");
+$node->start;
+
+$node->safe_psql('postgres', 'CREATE USER test0;');
+$node->safe_psql('postgres', 'CREATE USER test1;');
+
+note "running tests";
+
+sub test_access
+{
+ local $Test::Builder::Level = $Test::Builder::Level + 1;
+
+ my ($node, $role, $expected_res, $test_name, %params) = @_;
+ my $connstr = "user=$role";
+
+ if ($expected_res eq 0)
+ {
+ $node->connect_ok($connstr, $test_name, %params);
+ }
+ else
+ {
+ # No checks of the error message, only the status code.
+ $node->connect_fails($connstr, $test_name, %params);
+ }
+}
+
+note "use ldapbindpasswd";
+
+unlink($node->data_dir . '/pg_hba.conf');
+$node->append_conf('pg_hba.conf',
+ qq{local all all ldap ldapserver=$ldap_server ldapport=$ldap_port ldapbasedn="$ldap_basedn" ldapbinddn="$ldap_rootdn ldapbindpasswd=wrong}
+);
+$node->restart;
+
+$ENV{"PGPASSWORD"} = 'secret1';
+test_access($node, 'test1', 2,
+ 'search+bind authentication fails with wrong ldapbindpasswd');
+
+unlink($node->data_dir . '/pg_hba.conf');
+$node->append_conf('pg_hba.conf',
+ qq{local all all ldap ldapserver=$ldap_server ldapport=$ldap_port ldapbasedn="$ldap_basedn" ldapbinddn="$ldap_rootdn" ldapbindpasswd="$ldap_rootpw"}
+);
+$node->restart;
+
+test_access($node, 'test1', 0,
+ 'search+bind authentication succeeds with ldapbindpasswd');
+
+done_testing();