I encountered some problems using the spyOn method.

[EdivenH]

The testA function and testB function are exported from a single file.
and testA function internally calls the testB function.

I use vitest test testA function, expect testB function to have been called. But the assertion is failing.

this is demo https://stackblitz.com/edit/vitejs-vite-2uqszv

please help me~ thanks

[AriPerkkio]

See https://vitest.dev/guide/mocking.html#mocking-pitfalls.

Also your reproduction doesn't have Vitest installed or any test cases 🤷

[EdivenH]

sorry~ I update demo.
According to the documentation, this scenario cannot be test. ~~