add testing notes

Author: senadir

docs/testing/releases/540.md

@@ -0,0 +1,38 @@
+## Testing notes and ZIP for release 5.4.0
+
+Zip file for testing: [woocommerce-gutenberg-products-block.zip](https://github.com/woocommerce/woocommerce-gutenberg-products-block/files/6694563/woocommerce-gutenberg-products-block.zip)
+
+## Feature plugin only
+
+### Show loading state in the express payments area whilst payment is processing or the page is redirecting. ([4228](https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/4228))
+
+To test this properly you'll need Stripe setup locally in sandbox mode. You can test the express payments with Chrome/Edge Pay, or Apple Pay in Safari.
+
+1. Add an item to the cart
+2. Go to checkout and wait for express payment methods to display
+3. Toggle to change shipping; express payments should show the loading spinner and be blocked until the request is complete
+4. Pay using an express payment method
+5. After clicking Pay, the express payments area will show a loading spinner. When the request is complete and the checkout starts to redirect, the express payments area will remain blocked (no spinner).
+
+### Fix a warning shown when fees are included in the order. ([4360](https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/4360))
+
+1. Add fees to your cart (using the extra fees extension https://woocommerce.com/products/extra-fees-for-woocommerce/ set up an order fee, or any other combination of fees).
+2. Go to the cart/checkout blocks and ensure no console warning is shown.
+
+### Prevent PHP notice for variable products without enabled variations. ([4317](https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/4317))
+
+1. Create a variable product with one disabled variation and at least one variation attribute.
+2. Create a new blog post with a "Product category" block and select the category that contains the newly created product.
+3. Visiting the new blog post throws a PHP notice (NOTICE: PHP message: WordPress database error You have an error in your SQL syntax ...)
+
+## Feature plugin and package inclusion in WooCommerce core
+
+### Made script and style handles consistent. ([4324](https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/4324))
+
+1. Smoke test blocks and make sure they're insertable.
+
+### Allow products to be added by SKU in the Hand-Picked Products block. ([4366](https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/4366))
+
+1. Insert the hand picked product block
+2. See SKUs shown for products with a SKU
+3. Try searching for a SKU. See results.

docs/testing/releases/README.md

@@ -34,3 +34,4 @@ Every release includes specific testing instructions for new features and bug fi
 -   [5.2.0](./520.md)
 -   [5.3.0](./530.md)
 -   [5.3.1](./531.md)
+-   [5.4.0](./540.md)