getAmountNet example

public static function creditNoteRendererCustomerGroupDataProvider(): \Generator
    {
        yield 'render credit_note with customer group gross' => [
            false,
            [7],
            [-100],
            function DOrderEntity $order): void {
                static::assertNotNull($lineItems = $order->getLineItems());
                $taxAmount = $lineItems->getPrices()->sum()->getCalculatedTaxes()->getAmount();

                static::assertEquals($order->getPrice()->getTotalPrice(), 100);
                static::assertEquals($order->getAmountNet(), -(-100 - $taxAmount));
            },
        ];

        yield 'render credit_note with customer group net' => [
            true,
            [7],
            [-100],
            function DOrderEntity $order): void {
                static::assertEquals($order->getPrice()->getTotalPrice(), \abs(7) + \abs(-100));
                static::assertEquals($order->getAmountNet(), \abs(-100));
            },
        ];

        foreach ($order->getLineItems() ?? [] as $lineItem) {
            $lineItem->setUnitPrice($lineItem->getUnitPrice() / -1);
            $lineItem->setTotalPrice($lineItem->getTotalPrice() / -1);
        }

        foreach ($order->getPrice()->getCalculatedTaxes()->sortByTax()->getElements() as $tax) {
            $tax->setTax($tax->getTax() / -1);
        }

        $order->setShippingTotal($order->getShippingTotal() / -1);
        $order->setAmountNet($order->getAmountNet() / -1);
        $order->setAmountTotal($order->getAmountTotal() / -1);

        return $order;
    }

    private function getNumber(Context $context, OrderEntity $order, DocumentGenerateOperation $operation): string
    {
        return $this->numberRangeValueGenerator->getValue(
            'document_' . self::TYPE,
            $context,
            $order->getSalesChannelId(),