Summary

If you call rstest.spyOn multiple times for the same method, Rstest reuses the existing spy instead of redefining it.

const hi = {
  sayHi: () => 'hi',
};
rstest.spyOn(hi, 'sayHi').mockImplementation(() => 'hello');

expect(hi.sayHi()).toBe('hello');
// should get the same spy instance
expect(rstest.spyOn(hi, 'sayHi')).toBeCalled();

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).