public function testGetTotalWithCartPriceRulesAndReducesTaxSubtotal()
{
$productShirt = new Product();
$productShirt->setSku('TS-NAVY-LG');
$productShirt->setName('Navy T-shirt (large)');
$productShirt->setUnitPrice(1200);
$productShirt->setIsTaxable(true);
$productPoster = new Product();
$productPoster->setSku('PST-CKN');
$productPoster->setName('Citizen Kane (1941) Poster');
$productPoster->setUnitPrice(500);
$productPoster->setIsTaxable(true);
$cartPriceRule = new CartPriceRule();
$cartPriceRule->setName('Buy a Shirt get a FREE poster');
$cartPriceRule->addItem(new CartPriceRuleProductItem($productShirt, 1));
$cartPriceRule->addItem(new CartPriceRuleProductItem($productPoster, 1));
$cartPriceRule->addDiscount(new CartPriceRuleDiscount($productPoster, 1));
$cartPriceRule->setReducesTaxSubtotal(true);
$pricing = new Pricing();
$pricing->setCartPriceRules([$cartPriceRule]);
$cartItem1 = new CartItem();
$cartItem1->setProduct($productShirt);
$cartItem1->setQuantity(1);
$cartItem2 = new CartItem();
$cartItem2->setProduct($productPoster);
$cartItem2->setQuantity(1);
$taxRate = new TaxRate();
$taxRate->setZip5(92606);
$taxRate->setRate(8.0);
$taxRate->setApplyToShipping(false);
$cart = new Cart();
$cart->addCartItem($cartItem1);
$cart->addCartItem($cartItem2);
$cart->setTaxRate($taxRate);
$expectedCartTotal = new CartTotal();
$expectedCartTotal->origSubtotal = 1700;
$expectedCartTotal->subtotal = 1700;
$expectedCartTotal->taxSubtotal = 1200;
$expectedCartTotal->shipping = 0;
$expectedCartTotal->discount = 500;
$expectedCartTotal->tax = 96;
$expectedCartTotal->total = 1296;
$expectedCartTotal->savings = 500;
$expectedCartTotal->addCartPriceRule($cartPriceRule);
$expectedCartTotal->taxRate = $taxRate;
$cartCalculator = new CartCalculator($pricing);
$this->assertEquals($expectedCartTotal, $cartCalculator->getTotal($cart));
}
