The code hacker needs to be reset before each test. This was done via
a couple of classes implementeing BeforeTestHook, those were registered
in phpunit.xml.
The problem is that the PHPUnit version used for WooCommerce unit test
has recently been changed from 7.5 to 6.5 for compatibility with
PHP 7.0, and hook classes were introduced in PHPUnit 7. Thus no hooks
were ran, the code hacker wasn't reset, that caused some functions
to remain hacked between tests, and this made some tests to fail.
The solution is to move the code hacker reset to the setUp method
in the base unit test class.
After the League's Container package has been reintroduced, all the
code that implements the dependency injection mechanism in woocommerce
can be brought back as well.
Since reverting the PR at this point would be a mess I've gone ahead and removed the internals of the container. We should aim to keep the class since it's now part of our public API but it won't work as expected anymore. This is fine for now since we don't actually have anything in it!
test_static_mocks_can_be_used_via_injected_legacy_proxy_and_woocommerce_object
was failing in PHP 7.0, this replacement fixes it.
Suspected cause: https://bugs.php.net/bug.php?id=76505
- `get_instance_of` accepts now arguments to be passed to the
class constructor if necessary.
- `get_special_instance_of` method removed, instead, now if a method
named `get_instance_of_<lowercased class name>` exists in the class,
it is used to get the instance of the class.
- A couple more unit tests added.
- camelCase methods changed to snake_case for consistency with WP.
- Added a check in `ExtendedContainer::get` that throws an informative
exception if a non-namespaced class name is passed.
- `container->reset_resolved()` is called during unit testing bootstrap.
- Added some utility methods in `WC_Unit_Test_Case`.
- Added a new class `ExtendedContainer` that extends League's container.
- `add` modified to reject classes not in the root Woo namespace.
- Has two new methods, `replace` and `reset_resolved`.
- It's used as the underlying container instead of League's one
in `Container`, but the new methods are not exposed.
- At unit test bootstrap time the globally registered container is
replaced with the extended one that `Container` stores
(grabbed from private property using reflection).
- A new `MockableLegacyProxy` is added. It inherits from `LegacyProxy`
and allows to mock functions, static methods and legacy classes.
- The registeed `LegacyProxy` is replaced with the mockable version
during unit test bootstrap.
- A PHPUnit hook is added to reset the mockable proxy to its initial
state (so that nothing is mocked) before each test.
- `WC_Unit_Test_Case` gets helper methods to mock functions, static
methods and classes without having to retrieve the proxy class.
Nestor Soriano
Nestor Soriano
Christopher Allford