@barryhughes @swatipawarGS note that this PR is up for review, please assign reviewer(s) as necessary, thanks!

@Sidsector9 note the request for a unit test to help cover this, thanks!

Hi @vedanshujain

I am facing issues while writing tests. In the first attempt, I was able to write the test case.
After running the test individually a few times, the following started to happen:

I confirmed that the site was available. Visiting localhost opened the WordPress site but yet the "waiting for testing environment" error was shown.

To fix this, I deleted everything and attempted to write from scratch. But now I see this error:

I am not sure what the problem is. I followed the exact steps outlined here.

Any idea how to proceed?

hey @Sidsector9, please write a php unit test for this instead of an end-to-end test. PHPUnit test should be relatively much simpler. See this file on instructions for setting it up: https://github.com/woocommerce/woocommerce/blob/trunk/plugins/woocommerce/tests/README.md

You would probably want to add your test to this file: https://github.com/woocommerce/woocommerce/blob/trunk/plugins/woocommerce/tests/php/includes/class-wc-ajax-test.php . Some other examples of calculation-based tests - https://github.com/woocommerce/woocommerce/blob/trunk/plugins/woocommerce/tests/php/includes/class-wc-cart-totals-test.php.

Don't hesitate to ask if there are any issues in setup, PHPUnit is generally used internally so it's quite possible that there are gaps in documentation.

@vedanshujain thanks for the guidance.

I wrote the skeleton of the test:

• Created a Product
• Created a Coupon
• Created an Order

Where I am stuck at is testing these AJAX calls.

I don't have much experience with testing Ajax calls in unit tests. I saw a similar test in the same file but the method being tested is refactored for better unit testing.

My aim for this test is that the Order Total should be same when these 2 methods are called in any order:

• WC_AJAX::calc_line_taxes()
• WC_AJAX::add_coupon_discount()

How can I achieve this?

hey @Sidsector9

Are you having issues with the post request? Feel free to refactor the original methods if they help in better testing, it will likely be more work than this issue scopes.

If you want to continue testing without refactoring, then perhaps you can write two different tests, and pass the required data in a POST variable from the test? Although it might be easier to refactor the parts where it does not interact with the POST variables into different methods and test them instead.

Closing in favour of #33812