public function testGetNextSession()
{
$c = new Course();
// Finished offerings
$fo1 = $this->buildOffering(1, new \DateTime("2012-06-03"), Offering::START_DATES_KNOWN);
$fo2 = $this->buildOffering(2, new \DateTime("2012-05-03"), Offering::START_DATES_KNOWN);
$fo3 = $this->buildOffering(3, new \DateTime("2012-07-03"), Offering::START_DATES_KNOWN);
// Ongoing session
$oodt1 = new \DateTime();
$oodt1->sub(new \DateInterval("P10D"));
$oo1 = $this->buildOffering(4, $oodt1, Offering::START_DATES_KNOWN);
// Self paced session
$so1 = $this->buildOffering(5, new \DateTime("2012-07-03"), Offering::COURSE_OPEN);
// Upcoming sessions
$uo1 = $this->buildOffering(6, $this->getFutureDateUtility("P20D"), Offering::START_DATES_KNOWN);
$uo2 = $this->buildOffering(7, $this->getFutureDateUtility("P10D"), Offering::START_DATES_KNOWN);
$uo3 = $this->buildOffering(8, $this->getFutureDateUtility("P30D"), Offering::START_DATES_KNOWN);
// Course with single finished offering
$c->addOffering($fo1);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($fo1->getId(), $next->getId());
// Course with multiple finished offering
$c->addOffering($fo2);
$c->addOffering($fo3);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($fo3->getId(), $next->getId());
// Course with ongoing sessions
$c->addOffering($oo1);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($oo1->getId(), $next->getId());
// Course with with self paced sessions
$c->addOffering($so1);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($so1->getId(), $next->getId());
// Course with single upcoming session
$c->addOffering($uo1);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($uo1->getId(), $next->getId());
// Course with multiple upcoming sessions
$c->addOffering($uo2);
$c->addOffering($uo3);
$next = CourseUtility::getNextSession($c);
$this->assertEquals($uo2->getId(), $next->getId());
}
