$defaultOverrides->set( 'ObjectCaches', $objectCaches );
$defaultOverrides->set( 'MainCacheType', CACHE_NONE );
+ // Use a fast hash algorithm to hash passwords.
+ $defaultOverrides->set( 'PasswordDefault', 'A' );
+
$testConfig = $customOverrides
? new MultiConfig( [ $customOverrides, $defaultOverrides, $baseConfig ] )
: new MultiConfig( [ $defaultOverrides, $baseConfig ] );