silverstripe-framework/tests/php/ORM/MySQLiConnectorTest.php

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<?php
namespace SilverStripe\ORM\Tests;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Dev\TestOnly;
use SilverStripe\ORM\Tests\MySQLiConnectorTest\MySQLiConnector;
use SilverStripe\ORM\DB;
/**
* @requires extension mysqli
*/
class MySQLiConnectorTest extends SapphireTest implements TestOnly
{
/**
* @dataProvider charsetProvider
*/
public function testConnectionCharsetControl($charset, $defaultCollation)
{
$config = DB::getConfig();
$config['charset'] = $charset;
$config['database'] = 'information_schema';
if (strtolower(substr($config['type'], 0, 5)) !== 'mysql') {
return $this->markTestSkipped('The test only relevant for MySQL');
}
$connector = new MySQLiConnector();
$connector->connect($config);
$connection = $connector->getMysqliConnection();
$cset = $connection->get_charset();
$this->assertEquals($charset, $cset->charset);
$this->assertEquals($defaultCollation, $cset->collation);
unset($cset, $connection, $connector, $config);
}
/**
* @dataProvider charsetProvider
*/
public function testConnectionCollationControl($charset, $defaultCollation, $customCollation)
{
$config = DB::getConfig();
$config['charset'] = $charset;
$config['collation'] = $customCollation;
$config['database'] = 'information_schema';
if (strtolower(substr($config['type'], 0, 5)) !== 'mysql') {
return $this->markTestSkipped('The test only relevant for MySQL');
}
$connector = new MySQLiConnector();
$connector->connect($config);
$connection = $connector->getMysqliConnection();
$cset = $connection->get_charset();
$this->assertEquals($charset, $cset->charset);
/* Warning! This is a MySQLi limitation.
* If it changes in the future versions, this test may break.
* We are still testing for it as a limitation and a
* reminder that it exists.
*
* To make sure that we actually have correct collation see
* - testUtf8mb4GeneralCollation
* - testUtf8mb4UnicodeCollation
*/
$this->assertEquals(
$defaultCollation,
$cset->collation,
'This is an issue with mysqli. It always returns "default" collation, even if another is active'
);
$cset = $connection->query('show variables like "character_set_connection"')->fetch_array()[1];
$collation = $connection->query('show variables like "collation_connection"')->fetch_array()[1];
$this->assertEquals($charset, $cset);
$this->assertEquals($customCollation, $collation);
$connection->close();
unset($cset, $connection, $connector, $config);
}
public function charsetProvider()
{
return [
['ascii', 'ascii_general_ci', 'ascii_bin'],
['utf8', 'utf8_general_ci', 'utf8_unicode_520_ci'],
['utf8mb4', 'utf8mb4_general_ci', 'utf8mb4_unicode_520_ci']
];
}
public function testUtf8mb4GeneralCollation()
{
$charset = 'utf8mb4';
$collation = 'utf8mb4_general_ci';
$config = DB::getConfig();
$config['charset'] = $charset;
$config['collation'] = $collation;
$config['database'] = 'information_schema';
if (strtolower(substr($config['type'], 0, 5)) !== 'mysql') {
return $this->markTestSkipped('The test only relevant for MySQL');
}
$connector = new MySQLiConnector();
$connector->connect($config, true);
$connection = $connector->getMysqliConnection();
$result = $connection->query(
"select `a`.`value` from (select 'rst' `value` union select 'rßt' `value`) `a` order by `value`"
)->fetch_all();
$this->assertCount(1, $result, '`utf8mb4_general_ci` handles both values as equal to "rst"');
$this->assertEquals('rst', $result[0][0]);
}
public function testUtf8mb4UnicodeCollation()
{
$charset = 'utf8mb4';
$collation = 'utf8mb4_unicode_ci';
$config = DB::getConfig();
$config['charset'] = $charset;
$config['collation'] = $collation;
$config['database'] = 'information_schema';
if (strtolower(substr($config['type'], 0, 5)) !== 'mysql') {
return $this->markTestSkipped('The test only relevant for MySQL');
}
$connector = new MySQLiConnector();
$connector->connect($config, true);
$connection = $connector->getMysqliConnection();
$result = $connection->query(
"select `a`.`value` from (select 'rst' `value` union select 'rßt' `value`) `a` order by `value`"
)->fetch_all();
$this->assertCount(2, $result, '`utf8mb4_unicode_ci` must recognise "rst" and "rßt" as different values');
$this->assertEquals('rßt', $result[0][0]);
$this->assertEquals('rst', $result[1][0]);
}
}