this.theProductToInsert.IsActive = true;

        insert this.theProductToInsert;

        PriceBookEntry thePriceBookEntry = new PriceBookEntry(
            IsActive = true,
            Pricebook2Id = this.thePriceBook.Id,
            Product2Id = this.theProductToInsert.Id,
            UnitPrice = 1
        );

        insert thePriceBookEntry;

        System.debug('*** thePriceBookEntry: ' + thePriceBookEntry);

        insert new OpportunityLineItem(
            OpportunityId = this.theOpportunity.Id,
            PricebookEntryId = thePriceBookEntry.Id,
            Quantity = this.theOpportunityLineItem.Quantity,
            UnitPrice = this.theOpportunityLineItem.UnitPrice,
            Status__c = this.theOpportunityLineItem.Status__c,
            Lead_time__c = this.theOpportunityLineItem.Lead_time__c
        );

thePricebookEntry.CurrencyIsoCode = this.theOpportunity.CurrencyIsoCode;