fix(date-picker): merge origin input and popup input focus

[Yangzhedi]

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fix#11249
add test for shared/focusTest.js

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[Yangzhedi]

i add a onFocus trigger only once test
cased by

Cascader › focus and blur › focus() and onFocus trigger only once

    expect(jest.fn()).toBeCalledTimes(1)

    Expected mock function to have been called one time, but it was called two times.

      35 |       wrapper.instance().focus();
      36 |       jest.runAllTimers();
    > 37 |       expect(handleFocus).toBeCalledTimes(1);
         |                           ^
      38 |     });
      39 | 
      40 |     it('blur() and onBlur', () => {

      at Object.toBeCalledTimes (tests/shared/focusTest.js:37:27)

[justjavac]

Why not use hasFocus?

[afc163]

ci broken

[yoyo837]

ping

[afc163]

close for no response