/**
  * try to remove list member
  */
 public function testRemoveListMember()
 {
     $list = $this->testAddList();
     $list->members = array($this->objects['contact1'], $this->objects['contact2']);
     $list = $this->_instance->update($list);
     $list = $this->_instance->removeListMember($list, $this->objects['contact1']);
     $this->assertEquals($list->members, array($this->objects['contact2']->getId()));
 }