assertLineItemUnitPrice example

// the product builder has a helper function to write the product values to the database, including all dependencies (rules, currencies, properties, etc)         $product->write($this->getContainer());

        $context = $this->getContext();
        $context = $this->login($context);

        // now we test that the product can be added to a customers cart         $cart = $this->addProductToCart($product->id, $context);

        $this->assertLineItemInCart($cart, $product->id);

        $this->assertLineItemUnitPrice($cart, $product->id, 100);

        $this->assertLineItemTotalPrice($cart, $product->id, 100);

        $orderId = $this->mailListener(function DMailEventListener $listener) use ($cart, $context) {
            $orderId = $this->order($cart, $context);

            $listener->assertSent('order_confirmation_mail');

            return $orderId;
        });