* Add functionality to wp-admin order to check for coupon usage based on email addresses, similar to how WC_Cart handles this seperately, included unit tests.
* Only do the coupon by email usage check if order is from a guest. Fix issue with unit test.
This commit fixes all 1533 PHPCS errors that PHPCBF can fix automatically in the tests/ directory. Before this change there was a total of 3106 PHPCS errors in the WooCommerce repository and now there is 1573 errors.
This commit adds four test cases (via a PHPUnit data provider) for the `wc_sanitize_order_id()` function.
While writing the tests, it was also discovered that the function was returning a *string*, not an integer as indicated by the DocBlock, so explicit type-casting was added.
This commit removes unnecessary clean up code form some unit tests. All database changes done during a test are automatically reverted after the test finishes, so it is not necessary to write code to manually remove them. This change simplifies the test code and make it run a bit faster.
[According to the WooCommerce wiki](https://github.com/woocommerce/woocommerce/wiki/Order-and-Order-Line-Item-Data) and `WC_REST_Orders_Controller`, WooCommerce stores country codes using the ISO 3166-1 alpha-2 (2 character) standard. However, the `WC_Tests_Order_Functions::test_wc_get_order_address_params()` test method was using 'USA' instead of 'US'.
This commit adds the exception message thrown when WC_Order::set_billing_email() is called with an invalid message to a test to fix it.
I couldn't find what change in WC codebase broke the test and I'm not sure why it is failing only when running using PHP 5.6:
https://travis-ci.org/woocommerce/woocommerce/jobs/315750242#L600
Claudio Sanches
Gerhard Potgieter
Daniel Bitzer
Rodrigo Primo
unknown
Steve Grunwell
Mike Jolley
Steve Grunwell
claudiulodro
ragulka