useDeleteOne relations optimistic cache behavior (#10238)
## Introduction Added coverage on the `useDeleteOneRecord` hooks, especially its optimistic behavior feature. Introduced a new testing tool `InMemoryTestingCacheInstance` that has builtin very basic expectors in order to avoid future duplication when covering others record hooks `update, create, destroy` etc etc ## Notes Added few comments in this PR regarding some builtin functions I've created around companies and people mocked object model and that I think could be cool to spread and centralize within a dedicated "class template" Also put in light that unless I'm mistaken some tests are running on `RecordNode` and not `RecordObject` Took few directions on my own that as I always I would suggestion nor remarks on them ! Let me know ## Misc - Should we refactor `useDeleteOneRecord` tests to follow `eachTesting` pattern ? => I feel like this is inappropriate as this hooks is already high level, the only plus value would be less tests code despite readability IMO
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