public function testErrorStacking()
{
try {
$handler = ErrorHandler::register();
$handler->screamAt(E_USER_WARNING);
$logger = $this->getMock('Psr\\Log\\LoggerInterface');
$logger->expects($this->exactly(2))->method('log')->withConsecutive(array($this->equalTo(LogLevel::WARNING), $this->equalTo('Dummy log')), array($this->equalTo(LogLevel::DEBUG), $this->equalTo('Silenced warning')));
$handler->setDefaultLogger($logger, array(E_USER_WARNING => LogLevel::WARNING));
ErrorHandler::stackErrors();
@trigger_error('Silenced warning', E_USER_WARNING);
$logger->log(LogLevel::WARNING, 'Dummy log');
ErrorHandler::unstackErrors();
restore_error_handler();
restore_exception_handler();
} catch (\Exception $e) {
restore_error_handler();
restore_exception_handler();
throw $e;
}
}