public function testDeleteGroupMember()
 {
     $group = Utils::addGroup();
     $user = Utils::addUser();
     Utils::addUser2Group($group, $user);
     $resp = Utils::getBuddy()->getApiGroups()->deleteGroupMember(Utils::getWorkspaceDomain(), $group->getId(), $user->getId());
     $this->assertEquals(true, $resp);
 }