Update gettext unit tests to clearly test their functionality
Update gettext unit tests to clearly test their functionality

- instead of mocking the Django global functions, test each function's export that it correctly uses the global if present or test the default behaviour

wagtail/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,wagtail/wagtail,wagtail/wagtail,wagtail/wagtail,rsalmaso/wagtail,wagtail/wagtail,rsalmaso/wagtail