/**
* Creates an instance of Grader if not already created
*/
private static function initializeGrader()
{
if (is_null(self::$grader)) {
// Create new grader
self::$grader = new Grader();
}
}
/**
* Detours the Grader calls.
* Problem: Submiting a new run invokes the Grader::grade() function which makes
* a HTTP call to official grader using CURL. This call will fail if grader is
* not turned on. We are not testing the Grader functionallity itself, we are
* only validating that we populate the DB correctly and that we make a call
* to the function Grader::grade(), without executing the contents.
*
* Solution: We create a phpunit mock of the Grader class. We create a fake
* object Grader with the function grade() which will always return true
* and expects to be excecuted once.
*
*/
public function detourGraderCalls($times = null)
{
if (is_null($times)) {
$times = $this->once();
}
// Create a fake Grader object which will always return true (see
// next line)
$graderMock = $this->getMock('Grader', array('Grade'));
// Set expectations:
$graderMock->expects($times)->method('Grade')->will($this->returnValue(true));
// Detour all Grader::grade() calls to our mock
RunController::$grader = $graderMock;
ProblemController::$grader = $graderMock;
}
