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php

--TEST--
mysqli->change_user()
--SKIPIF--
<?php
require_once('skipif.inc');
require_once('skipifemb.inc');
require_once('skipifconnectfailure.inc');

require_once('table.inc');
if (!$IS_MYSQLND && (mysqli_get_server_version($link) < 50118 && mysqli_get_server_version($link) > 50100)) {
	die("skip Your MySQL Server version has a known bug that will cause a crash");
}
?>
--FILE--
<?php
	include_once("connect.inc");

	$link	= NULL;
	$tmp	= NULL;

	if (!$mysqli = new my_mysqli($host, $user, $passwd, $db, $port, $socket))
		printf("[001] Cannot connect to the server using host=%s, user=%s, passwd=***, dbname=%s, port=%s, socket=%s\n",
			$host, $user, $db, $port, $socket);

	if (!is_null($tmp = @$mysqli->change_user()))
		printf("[002] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

	if (!is_null($tmp = @$mysqli->change_user($link)))
		printf("[003] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

	if (!is_null($tmp = @$mysqli->change_user($link, $link)))
		printf("[004] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

	if (!is_null($tmp = @$mysqli->change_user($link, $link, $link, $link)))
		printf("[005] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

	if (false !== ($tmp = $mysqli->change_user($user . '_unknown_really', $passwd . 'non_empty', $db)))
		printf("[006] Expecting false, got %s/%s\n", gettype($tmp), $tmp);

	if (false !== ($tmp = $mysqli->change_user($user, $passwd . '_unknown_really', $db)))
		printf("[007] Expecting false, got %s/%s\n", gettype($tmp), $tmp);

	if (false !== ($tmp = $mysqli->change_user($user, $passwd, $db . '_unknown_really')))
		printf("[008] Expecting false, got %s/%s\n", gettype($tmp), $tmp);

	if (!$mysqli->query('SET @mysqli_change_user_test_var=1'))
		printf("[009] Failed to set test variable: [%d] %s\n", $mysqli->errno, $mysqli->error);

	if (!$res = $mysqli->query('SELECT @mysqli_change_user_test_var AS test_var'))
		printf("[010] [%d] %s\n", $mysqli->errno, $mysqli->error);
	$tmp = $res->fetch_assoc();
	$res->free_result();
	if (1 != $tmp['test_var'])
		printf("[011] Cannot set test variable\n");

	if (true !== ($tmp = $mysqli->change_user($user, $passwd, $db)))
		printf("[012] Expecting true, got %s/%s\n", gettype($tmp), $tmp);

	if (!$res = $mysqli->query('SELECT database() AS dbname, user() AS user'))
		printf("[013] [%d] %s\n", $mysqli->errno, $mysqli->error);
	$tmp = $res->fetch_assoc();
	$res->free_result();

	if (substr($tmp['user'], 0, strlen($user)) !== $user)
		printf("[014] Expecting user %s, got user() %s\n", $user, $tmp['user']);
	if ($tmp['dbname'] != $db)
		printf("[015] Expecting database %s, got database() %s\n", $db, $tmp['dbname']);

	if (!$res = $mysqli->query('SELECT @mysqli_change_user_test_var AS test_var'))
		printf("[016] [%d] %s\n", $mysqli->errno, $mysqli->error);
	$tmp = $res->fetch_assoc();
	$res->free_result();
	if (NULL !== $tmp['test_var'])
		printf("[017] Test variable is still set!\n");

	$mysqli->close();

	if (NULL !== ($tmp = @$mysqli->change_user($user, $passwd, $db)))
		printf("[018] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

	print "done!";
?>
--EXPECTF--
done!