Fast Simple Product

simple_product.php

<?php
declare(strict_types=1);
/**
 * @by SwiftOtter, Inc., 2019/10/24
 * @website https://swiftotter.com
 **/

$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();

/** @var $collection \Magento\Catalog\Model\ResourceModel\Product\Collection */
$collection = $objectManager->create(\Magento\Catalog\Model\ResourceModel\Product\Collection::class);
$collection->addFieldToFilter('sku', 'simple')
    ->addAttributeToSelect([
        // Attributes to verify
        'cost',
      ]);

$compareProduct = $collection->getFirstItem();

if ($compareProduct->getData('cost') != 0.90
  // verify other attributes here
) {
    include __DIR__ . '/simple_product_rollback.php';

    /** @var $product \Magento\Catalog\Model\Product */
    $product = $objectManager->create(\Magento\Catalog\Model\Product::class);
    $product->isObjectNew(true);
    $product->setTypeId(\Magento\Catalog\Model\Product\Type::TYPE_SIMPLE)
        ->setId(1)
        ->setAttributeSetId(4)
        ->setWebsiteIds([1])
        ->setName('Simple Product')
        ->setSku('simple')
        ->setPrice(10)
        ->setWeight(1)
        ->setTaxClassId(0)
        ->setDescription('Description with <b>html tag</b>')
        ->setVisibility(\Magento\Catalog\Model\Product\Visibility::VISIBILITY_BOTH)
        ->setStatus(\Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED)
        ->setStockData(
            ['use_config_manage_stock' => 0, 'manage_stock' => 0, 'qty' => 100, 'is_qty_decimal' => 0, 'is_in_stock' => 100]
        );

    $product->setCustomAttribute('cost', 0.90);
    // configure needed custom attributes here

    $product->save();
    return $product;
} else {
    return $compareProduct;
}