public function test_accessors()
{
/** === Test Data === */
$DISCOUNT = 'discount';
$SALE_ITEM_ID = 'sale item id';
$SUBTOTAL = 'subtotal';
$TOTAL = 'total';
/** === Call and asserts === */
$this->obj->setDiscount($DISCOUNT);
$this->obj->setSaleItemId($SALE_ITEM_ID);
$this->obj->setSubtotal($SUBTOTAL);
$this->obj->setTotal($TOTAL);
$this->assertEquals($DISCOUNT, $this->obj->getDiscount());
$this->assertEquals($SALE_ITEM_ID, $this->obj->getSaleItemId());
$this->assertEquals($SUBTOTAL, $this->obj->getSubtotal());
$this->assertEquals($TOTAL, $this->obj->getTotal());
}