This commit moves two functions declared inside a test method to their
own protected methods inside the same test class to make it easier to
read the tests and it fixes the order of the parameters for the calls to
Assert::assertEquals(). The first parameter passed to this method should
be the expected value and the second parameter should be the actual
value and not the opposite.
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.