Recently I moved away from Vuex and started working with Pinia. I saw that there are 2 possible syntaxes and I created a very basic example by following the Option Stores approach: As you can see in…

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Switching from Vuex to Pinia, the author encountered issues using the setup stores syntax, particularly with unit testing. While the logger worked, the spy function failed, uncovering the complexity and different internal structure of setup stores. Workarounds are necessary to align tests, and using `store.$onAction` for side effects adds further complications.

You are using Pinia wrong!