Enzim içeren bileşen içindeki select öğesinin değeri ayarlanamıyor

İçindeki bir select öğesinin değerini ayarlamaya çalışıyorum. Dropdown bileşen, ancak test başarısız olmaya devam ediyor.

İşte test edilecek bileşenin bir codesandbox'ı.

it('should execute onChange once and change value to "item2"', () => {
        const onChangeMock = jest.fn();
        const wrapper = mount(
            <Dropdown{ ...args } 
                onChange={ onChangeMock } 
                listItems={ ['item1', 'item2', 'item3'] } />
        );

    
        wrapper.find('select').simulate('change', { value: 'item2' });

        console.log(wrapper.debug());
        console.log(wrapper.find('select').props());
        
        expect(wrapper.find('select').props().value).toBe('item2');
        expect(onChangeMock.mock.calls.length).toBe(1);
    });

Çalıştırdıktan sonra çıktı npm run test:

 expect(received).toBe(expected) // Object.is equality
 Expected: "item2"
 Received: undefined

 51 |         console.log(wrapper.find('select').props());
 52 |         
 53 |         expect(wrapper.find('select').props().value).toBe('item2');
    |                                                      ^
 54 |         expect(onChangeMock.mock.calls.length).toBe(1);
 55 |     });
 56 | });

console.log
    <Dropdown id="" name="" label="" placeholder="" errorMessage="" valid={false} required={false} listItems={{...}} onChange={[Function: mockConstructor] { _isMockFunction: true, getMockImplementation: [Function (anonymous)], mock: Object [Object: null prototype] { calls: [ [ SyntheticBaseEvent { _reactName: 'onChange', _targetInst: [Object], type: 'change', nativeEvent: [Object], target: [Object], currentTarget: null, eventPhase: undefined, bubbles: undefined, cancelable: undefined, timeStamp: 1637655017281, defaultPrevented: undefined, isTrusted: undefined, isDefaultPrevented: [Function: functionThatReturnsFalse], isPropagationStopped: [Function: functionThatReturnsFalse], value: 'item2', _dispatchListeners: null, _dispatchInstances: null } ] ], instances: [ undefined ], invocationCallOrder: [ 1 ], results: [ Object [Object: null prototype] { type: 'return', value: undefined } ] }, mockClear: [Function (anonymous)], mockReset: [Function (anonymous)], mockRestore: [Function (anonymous)], mockReturnValueOnce: [Function (anonymous)], mockResolvedValueOnce: [Function (anonymous)], mockRejectedValueOnce: [Function (anonymous)], mockReturnValue: [Function (anonymous)], mockResolvedValue: [Function (anonymous)], mockRejectedValue: [Function (anonymous)], mockImplementationOnce: [Function (anonymous)], mockImplementation: [Function (anonymous)], mockReturnThis: [Function (anonymous)], mockName: [Function (anonymous)], getMockName: [Function (anonymous)] }}>
      <div className="med-dropdown">
        <label htmlFor="" className="med-dropdown__label">
           (Optional)
        </label>
        <select id="" name="" className="med-dropdown__select false" defaultValue={0} onChange={[Function: mockConstructor] { _isMockFunction: true, getMockImplementation: [Function (anonymous)], mock: Object [Object: null prototype] { calls: [ [ SyntheticBaseEvent { _reactName: 'onChange', _targetInst: [Object], type: 'change', nativeEvent: [Object], target: [Object], currentTarget: null, eventPhase: undefined, bubbles: undefined, cancelable: undefined, timeStamp: 1637655017281, defaultPrevented: undefined, isTrusted: undefined, isDefaultPrevented: [Function: functionThatReturnsFalse], isPropagationStopped: [Function: functionThatReturnsFalse], value: 'item2', _dispatchListeners: null, _dispatchInstances: null } ] ], instances: [ undefined ], invocationCallOrder: [ 1 ], results: [ Object [Object: null prototype] { type: 'return', value: undefined } ] }, mockClear: [Function (anonymous)], mockReset: [Function (anonymous)], mockRestore: [Function (anonymous)], mockReturnValueOnce: [Function (anonymous)], mockResolvedValueOnce: [Function (anonymous)], mockRejectedValueOnce: [Function (anonymous)], mockReturnValue: [Function (anonymous)], mockResolvedValue: [Function (anonymous)], mockRejectedValue: [Function (anonymous)], mockImplementationOnce: [Function (anonymous)], mockImplementation: [Function (anonymous)], mockReturnThis: [Function (anonymous)], mockName: [Function (anonymous)], getMockName: [Function (anonymous)] }} onFocus={[Function: onFocus]} onBlur={[Function: onBlur]} disabled={[undefined]}>
          <option disabled={true} value={0} />
          <option value="item1">
            item1
          </option>
          <option value="item2">
            item2
          </option>
          <option value="item3">
            item3
          </option>
        </select>
      </div>
    </Dropdown>