public function testCurtainColoursOnOffer()
{
$curtainDesign = new CurtainDesign();
$curtainColour1 = new CurtainColour();
$curtainColour1->setName("two");
$curtainColour1->setinStock(1);
$curtainColour1->setOnOffer(1);
$curtainColour1->setDisplay(1);
$curtainDesign->addCurtainColour($curtainColour1);
$curtainColour3 = new CurtainColour();
$curtainColour3->setName("three");
$curtainColour3->setinStock(1);
$curtainColour3->setOnOffer(0);
$curtainDesign->addCurtainColour($curtainColour3);
$curtainColour2 = new CurtainColour();
$curtainColour2->setName("one");
$curtainColour2->setinStock(0);
$curtainColour2->setOnOffer(1);
$curtainColour2->setDisplay(1);
$curtainDesign->addCurtainColour($curtainColour2);
$curtainColour4 = new CurtainColour();
$curtainColour4->setName("four");
$curtainColour4->setinStock(1);
$curtainColour4->setOnOffer(1);
$curtainColour4->setDisplay(0);
$curtainDesign->addCurtainColour($curtainColour4);
$curtainColour4 = new CurtainColour();
$curtainColour4->setName("five");
$curtainColour4->setinStock(1);
$curtainColour4->setOnOffer(1);
$curtainColour4->setDisplay(1);
$curtainDesign->addCurtainColour($curtainColour4);
$coloursOnOffer = $curtainDesign->getCurtainColoursOnOffer();
$this->assertTrue(count($coloursOnOffer) == 2);
$this->assertEquals("two", current($coloursOnOffer)->getName());
$this->assertEquals("five", next($coloursOnOffer)->getName());
}
