/**
* @expectedException \Sokil\Mongo\Exception
* @expectedExceptionMessage Update error
*/
public function testUpdateMultiple_ErrorWithUnacknowledgedWriteConcern()
{
// mock mongo's collection
$mongoCollectionMock = $this->getMock('\\MongoCollection', array('update'), array($this->database->getMongoDB(), 'phpmongo_test_collection'));
$mongoCollectionMock->expects($this->once())->method('update')->with($this->isType('array'), $this->isType('array'), $this->arrayHasKey('multiple'))->will($this->returnValue(false));
// create collection with mocked original mongo collection
$this->collection = new Collection($this->database, $mongoCollectionMock);
$this->collection->setUnacknowledgedWriteConcern();
$this->collection->updateMultiple(new Expression(), new Operator());
}