mockProvider - does not mock class arrow functions

[seadonk]

When calling mockProvider, class methods are mocked, but everything else is left undefined including arrow functions.
We have gotten into the habit of using arrow functions instead of class methods for much of our logic, because of their brevity.

• Is it possible to also mock arrow functions? I know I can manually provide them, but it would be nice if mockProvider could automatically mock them as jest.fn(). It seems as if by their nature of not being on the prototype that this may not be possible.
• Is it bad practice to write an arrow function vs an ES6 class method?

Example:

class Example {
       myMethod(): string {
        return 'hello there';
    }
    myArrowMethod = (): string => 'hello there';
}

// mockProvider(Example) produces:
{
      myMethod: jest.fn(),
      myArrowMethod: undefined
}