Memoized cache errors when spying in test

[Propaganistas]

Laravel Version

12.39.0

PHP Version

8.4.15

Database Driver & Version

No response

Description

I am adding some memoization to some cache calls:

// from
Cache::remember(...)
// to
Cache::memo()->remember(...)

But tests using a cache spy start failing after this addition with the folllowing error:

$cache = Cache::spy();

// ...

$cache->shouldHaveReceived('remember');

// Call to a member function remember() on null

Rewriting the test to the following also results in an error:

$cache = Cache::memo()->spy();

// method spy() is not available on MemoizedCacheStore

Steps To Reproduce

I've created a showcase repository here: https://github.com/Propaganistas/laravel-issue-57853

It contains two commits:

• Fresh Laravel application
• Minimal code to reproduce the issue

Run php artisan test or composer test to see the error.