Create a test order in Craft Commerce

craft-commerce-create-test-order.php

<?php
public function actionCreateTestOrder ()
    {
        // Configuration

        // Id of customer for this order
        $customerId           = 1;
        $productId            = 8;
        $orderStatusId        = 1;
        $paymentMethodId      = 1;
        $shippingMethodHandle = 'bring';

        // Get products
        $product  = craft()->commerce_products->getProductById($productId);
        $customer = craft()->commerce_customers->getCustomerById($customerId);

        // Get first address
        $address = $customer->getAddresses()[0];

        // Order item lines
        $items = [ ];

        // Add product
        $item = new Commerce_LineItemModel();
        $item->fillFromPurchasable($product->getDefaultVariant());
        $items[] = $item;

        // Order model
        $order                  = new Commerce_OrderModel();
        $order->customerId      = $customerId;
        $order->orderStatusId   = $orderStatusId;
        $order->paymentMethodId = $paymentMethodId;
        $order->shippingMethod  = $shippingMethodHandle;

        $order->setLineItems($items);
        $order->setShippingAddress($address);
        $order->setBillingAddress($address);

        // Create order
        craft()->commerce_orders->saveOrder($order);

        craft()->end();
    }