/**
  * @covers Zend\Db\TableGateway\TableGateway::update
  */
 public function testUpdate()
 {
     $update = $this->getMock('Zend\\Db\\Sql\\Update');
     // assert select::from() is called
     $update->expects($this->once())->method('where')->with($this->equalTo('foo'));
     $this->table->setSqlUpdate($update);
     $this->table->update(array('foo' => 'bar'), 'foo');
 }