A user provided a set of site caching configuration settings that cause some errors. For example:
$settings['cache']['bins']['dynamic_page_cache'] = 'cache.backend.memcache'; $settings['cache']['bins']['discovery'] = 'cache.backend.memcache';
On top of that, the memcache module states that users must include the following in their site configuration:
$settings['cache']['default'] = 'cache.backend.memcache';
I would like to extend some core Kernel tests to run with the memcache module configured the way the user described. I can easily enable the module by adding it to the $modules array in the MyTest class. What else do I need to add to ensure the “site configuration settings” are the way the user recommends. I was hoping I could add something to the MyTest::setUp() function to change the settings, or better yet, have a dataProvider to supply a variety of settings to the test function to test against. I thought there would be something obvious in the system.performance configuration item, but it looks like cache.default is a service. Do I need to redefine this service programmically? How do I do that? The memcache module does not automatically override the cache.default service in its services.yml file.