Replace the usage of `// @codingStandardsIgnoreStart` and `// @codingStandardsIgnoreEnd` with `// phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores` on WC_Gateway_Paypal_IPN_Handler::check_response(). Ignoring a single PHPCS rule is better than ignoring everything to protect the line against potential violations of the other rules.
Commit c7a3fd2 changed the logic to check if the refund is a full refund to use the strict equal operator (`===`) in the following line:
25be9fc13c/includes/gateways/paypal/includes/class-wc-gateway-paypal-ipn-handler.php (L295)
This change broke the comparison as `$order->get_total()` will return the value respecting the number of decimals after the decimal point set in the option `woocommerce_price_num_decimals` and `wc_format_decimal()`, when called without a second parameter, will not format the received value to use the same number of decimals set in `woocommerce_price_num_decimals`. To fix this issue, this commit passes `wc_get_price_decimals()` as the second parameter to `wc_format_decimal()`. This way both values will always have the same number of decimals and the comparison should work when handling a full refund.
Fixes#20551
- prepare_line_items is not used as a test anymore, it only updates line items
- add_line_item is not used as a test anymore, only adds line items
- added method line_items_valid to test for valid line items
- shipping tax inclusion test moved to get_shipping_cost_line_item to encapsulate shipping tax-related logic
- removed limit to 9 line items per Paypal order
- if the request URL with all line items will be longer than 2083 characters, send it as one line item
- fix the character limit function to account for URL encoding happening in http_build_query
Switches defaults for Check payments and PayPal Standard to 'no', so that no payment gateways are enabled by default before running through setup wizard.