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kotlinlang

Hi, can someone pls explain me the difference between `mockk()` and `any()` . Why when i have smth like
```coEvery { foo(any()) } returns SomeObject```
it works. But when i replace `any()` with `mockk()` , its print out:
```exception=io.mockk.MockKException: no answer found for: SomeClass(#9).foo$domain(ParamType(#5), continuation {})))```

AFAIK, `mockk()` is to create a mock, whereas `any()` is a matcher that will match any argument.  You'd want to use `any()` in that situation if you want to return some result regardless of what the argument passed to `foo` was.

the framework implicitly uses a `eq` matcher when you don’t specify one, so `foo(mockk())` is equivalent to `foo(eq(mockk()))`. as brian said, `mockk()` creates a strict-by-default mock, meaning every method call on the created mock needs to be known.

anyway, you want to use `any()` in your case