(instance(mock(MyClass)) instanceof MyClass) is false. about ts-mockito HOT 6 OPEN

This one should take more attention for getting ts-mockito more intuitive and convenient

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I also encountered a problem checking instanceof in my code. This doesn't seem to be possible to check via the mock object.
See #133 (comment). If anyone has any ideas on how to test this without changing the existing code, please tell us.

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I'am hacked it's via Symbol.hasInstance and duck typing in my test:

Object.defineProperty(MyClass, Symbol.hasInstance, {
  value: (obj) => obj.hasOwnProperty("myProperty"),
});
const mockedMyClass = mock(MyClass);
when(mockedMyClass.myProperty).thenReturn(true);

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If anyone has any ideas on how to test this without changing the existing code, please tell us.

@prKassad
As mentioned in the first comment, Object.setPrototypeOf lets you test code with instanceof without change of existing code.

const mockedInstanceOfMyClass = instance(mock(MyClass))
console.log(mockedInstanceOfMyClass instanceof MyClass) // false
Object.setPrototypeOf(mockedInstanceOfMyClass, MyClass.prototype)
console.log(mockedInstanceOfMyClass instanceof MyClass) // true

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Nice! This is right

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how about:

import {instance as wrappedInstance} from 'ts-mockito';

const instance = function(mockClass) {
    const mockedInstanceOfMyClass = wrappedInstance(mockClass)
    Object.setPrototypeOf(mockedInstanceOfMyClass, mockClass.__tsmockitoMocker.clazz.prototype);
    return mockedInstanceOfMyClass;
}

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