3x Magento Master
Add to cart button in product page coming from Catalog module with product/view/addtocart.phtml template file.
If you want to customization on addtocart template file in Magento 2, You can override addtocart.phtml file in your module by below way,
Create the catalog_product_view.xml file in your module,
Path: app/code/{VendorName}/{PackageName}/view/frontend/layout/catalog_product_view.xml
In Magento 2 you can add Datepicker for a custom option Date Field in Product detail page using enable Javascript Calander. Native Magento doesn’t display Date picker for Date Custom Option field. They just show as a Dropdown option for Day, Month and Year.
You have to enable Javascript Calander from System Configuration.
Unit Testing Definition:
— UNIT TESTING is a software development process where individual units from a functional(programming) file or components of the software are tested automatically using code level.
— Main Intention for a Unit test is to validate each unit of the software performs as logic designed.
— The unit testing process is completely automatic without any manual testing for functionality.