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<?php
namespace MediaWiki\Tests;
use MediaWiki\Logger\LoggerFactory;
use Wikimedia\ObjectCache\HashBagOStuff;
use Wikimedia\ObjectCache\WANObjectCache;
use Wikimedia\Rdbms\Database;
use Wikimedia\Rdbms\FakeResultWrapper;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\QueryBuilderFromRawSql;
use Wikimedia\Rdbms\QueryStatus;
use Wikimedia\Rdbms\Replication\ReplicationReporter;
use Wikimedia\Rdbms\TransactionProfiler;
/**
* A default-constructible Database subclass that doesn't access any services so
* should be safe to use in unit tests.
*
* The best way to validate a database query is by actually running it against
* a real database. So the acceptable use cases for this class are narrow. It
* may be useful for testing query-building services, or queries against tables
* that don't actually exist. It can be used for service injection when there
* is only a minor dependency on the database, for example for quoting.
*
* Query collection and fake result generation could easily be added if there is
* a need for that.
*
* @since 1.42
*/
class MockDatabase extends Database {
/** @var int */
private $nextInsertId = 0;
public function __construct( $options = [] ) {
// Use a real logger because tests need logging, maybe more than production
$logger = $options['logger'] ?? LoggerFactory::getInstance( 'MockDatabase' );
parent::__construct( $options + [
'cliMode' => true,
'agent' => '',
'profiler' => null,
'trxProfiler' => new TransactionProfiler,
'logger' => $logger,
'errorLogger' => $logger,
'deprecationLogger' => $logger,
'dbname' => 'test',
'schema' => '',
'tablePrefix' => '',
'password' => '',
'flags' => 0,
'serverName' => '',
] );
$this->replicationReporter = new ReplicationReporter(
$options['topologyRole'] ?? IDatabase::ROLE_STREAMING_MASTER,
$logger,
$options['srvCache'] ?? new WANObjectCache( [
'cache' => new HashBagOStuff(),
'logger' => $logger,
] )
);
}
protected function open( $server, $user, $password, $db, $schema, $tablePrefix ) {
}
public function isOpen() {
return true;
}
public function indexInfo( $table, $index, $fname = __METHOD__ ) {
throw new \RuntimeException( 'Not implemented' );
}
public function strencode( $s ) {
return addslashes( $s );
}
protected function closeConnection() {
}
protected function doSingleStatementQuery( string $sql ): QueryStatus {
$query = QueryBuilderFromRawSql::buildQuery( $sql, 0 );
if ( $query->isWriteQuery() ) {
return new QueryStatus( true, 0, 0, '' );
} else {
return new QueryStatus( new FakeResultWrapper( [] ), 0, 0, '' );
}
}
public function tableExists( $table, $fname = __METHOD__ ) {
return true;
}
protected function lastInsertId() {
return $this->nextInsertId++;
}
public function fieldInfo( $table, $field ) {
throw new \RuntimeException( 'Not implemented' );
}
public function getType() {
return 'mock';
}
public function lastErrno() {
return 0;
}
public function lastError() {
return '';
}
public function getSoftwareLink() {
return '';
}
public function getServerVersion() {
return '';
}
}
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