Bring product factory from spree_core and merge with modification

spec/factories/product_factory.rb

@@ -1,4 +1,46 @@
 FactoryBot.define do
+  factory :base_product, class: Spree::Product do
+    sequence(:name) { |n| "Product ##{n} - #{Kernel.rand(9999)}" }
+    description { generate(:random_description) }
+    price 19.99
+    cost_price 17.00
+    sku 'ABC'
+    available_on { 1.year.ago }
+    deleted_at nil
+
+    supplier { Enterprise.is_primary_producer.first || FactoryBot.create(:supplier_enterprise) }
+    primary_taxon { Spree::Taxon.first || FactoryBot.create(:taxon) }
+
+    unit_value 1
+    unit_description ''
+
+    variant_unit 'weight'
+    variant_unit_scale 1
+    variant_unit_name ''
+
+    shipping_category { |r| Spree::ShippingCategory.first || r.association(:shipping_category) }
+
+    # ensure stock item will be created for this products master
+    before(:create) { create(:stock_location) if Spree::StockLocation.count == 0 }
+
+    factory :product do
+      transient do
+        on_hand { 5 }
+      end
+
+      tax_category { |r| Spree::TaxCategory.first || r.association(:tax_category) }
+
+      after(:create) do |product, evaluator|
+        product.master.on_hand = evaluator.on_hand
+        product.variants.first.on_hand = evaluator.on_hand
+      end
+
+      factory :product_with_option_types do
+        after(:create) { |product| create(:product_option_type, product: product) }
+      end
+    end
+  end
+
   factory :product_with_image, parent: :product do
     after(:create) do |product|
       image = File.open(Rails.root.join('app', 'assets', 'images', 'logo-white.png'))
@@ -42,30 +84,3 @@ FactoryBot.define do
     end
   end
 end
-
-FactoryBot.modify do
-  factory :product do
-    transient do
-      on_hand { 5 }
-    end
-
-    primary_taxon { Spree::Taxon.first || FactoryBot.create(:taxon) }
-
-    after(:create) do |product, evaluator|
-      product.master.on_hand = evaluator.on_hand
-      product.variants.first.on_hand = evaluator.on_hand
-    end
-  end
-
-  factory :base_product do
-    supplier { Enterprise.is_primary_producer.first || FactoryBot.create(:supplier_enterprise) }
-    primary_taxon { Spree::Taxon.first || FactoryBot.create(:taxon) }
-
-    unit_value 1
-    unit_description ''
-
-    variant_unit 'weight'
-    variant_unit_scale 1
-    variant_unit_name ''
-  end
-end