/**
  * Validate that the listing respects the local/elisprogram:track_enrol_userset_user
  * capability as long as the appropriate userset and track are associated to
  * one another and the target user is in the userset
  */
 public function test_availableusersrespectsindirectusersetpermissions()
 {
     global $DB, $USER;
     $this->load_csv_data();
     set_config('siteguest', '');
     set_config('siteadmins', '');
     accesslib_clear_all_caches_for_unit_testing();
     // Create a test user to be in the userset.
     $usersetmember = new user(array('idnumber' => 'usersetmember', 'username' => 'usersetmember', 'firstname' => 'usersetmember', 'lastname' => 'usersetmember', 'email' => '*****@*****.**', 'country' => 'CA'));
     $usersetmember->save();
     // Our test userset.
     $userset = new userset(array('name' => 'userset'));
     $userset->save();
     // Assign the test user to the test userset.
     $clusterassignment = new clusterassignment(array('userid' => $usersetmember->id, 'clusterid' => $userset->id));
     $clusterassignment->save();
     // Assign the userset to our track.
     $clustertrack = new clustertrack(array('clusterid' => $userset->id, 'trackid' => 1));
     $clustertrack->save();
     // Set up a db record for the active user for permissions reasons.
     // (i.e. so they are not treated as an admin).
     $activeuser = new user(array('idnumber' => 'activeuser', 'username' => 'activeuser', 'firstname' => 'activeuser', 'lastname' => 'activeuser', 'email' => '*****@*****.**', 'country' => 'CA'));
     $activeuser->save();
     // Set up our test role.
     $roleid = create_role('testrole', 'testrole', 'testrole');
     $syscontext = context_system::instance();
     assign_capability('local/elisprogram:track_enrol_userset_user', CAP_ALLOW, $roleid, $syscontext->id);
     // Perform the role necessary assignment.
     $moodleuser = $DB->get_record('user', array('username' => 'activeuser'));
     // Make sure all the contexts are created, so that we can find the children.
     $contextclass = \local_eliscore\context\helper::get_class_for_level(CONTEXT_ELIS_USERSET);
     $instance = $contextclass::instance($userset->id);
     role_assign($roleid, $moodleuser->id, $instance->id);
     // Assume the role of the user with the role assignment.
     $USER = $moodleuser;
     $usersrecset = usertrack::get_available_users(1);
     $users = array();
     foreach ($usersrecset as $key => $user) {
         $users[$key] = $user;
     }
     unset($usersrecset);
     $this->assertEquals(1, count($users));
     // Validate user.
     $this->assertArrayHasKey($usersetmember->id, $users);
     $user = $users[$usersetmember->id];
     $this->assertEquals($usersetmember->username, 'usersetmember');
     // Validate count.
     $count = usertrack::count_available_users(1);
     $this->assertEquals(1, $count);
 }