ant-design/ant-design-english

Hi everyone!

I am try to write a unit test of biz components which is base on antd select.
I use @testing-library to write unit test.

This is my unit test code:

it('filter by input', async () => {
    const { getByRole, rerender, container } = render(<MySelect />);

    await act(async () => {
      fireEvent.mouseDown(getByRole('combobox'));
    });

    expect(screen.queryAllByRole('option')).toHaveLength(58); // received => 2
  });

This is my biz component

const OPTOINS = [{ value: 'a', text: 'a' }, {value: 'b', text: ‘b'} ];  // There are 58 options.
const MySelect = forwardRef((props, ref) => {
  const handleSelectFilter = useCallback(
    (input, option) => option.children.includes(input),
    [],
  );
  return (
    <Select
      showSearch
      defaultActiveFirstOption
      filterOption={handleSelectFilter}
      {...props}
      ref={ref}
    >
      {OPTIONS.map(({ value, text }) => (
        <Select.Option key={value}>{text}</Select.Option>
      ))}
    </Select>
  );
});

What should i do to simulate open select option list?
In antd v4, select impl by virtual list.
So, what is the correct excepted value?