解决React组件中onCancel回调未触发的测试失败问题

export interface ChooseLanguageModalProps {
    languageList: SelectOption[];
    onDownloadLanguage: (value?: string) => void;
    onDownload: () => void;
    onCancel?: () => void; // 定义了onCancel属性
}

export const ChooseLanguageModal = (props: ChooseLanguageModalProps) => {
    // ...
    const handleCancel = async () => {
        // onCancel() 未在此处被调用
        await hideChooseLanguageModal();
    };
    // ...
    return (
        // ...
        <Button onClick={handleCancel}>{CANCEL_BUTTON_TEXT}</Button>
        // ...
    );
};

test('should call onCancel when cancel button is clicked', async () => {
    const languageList = [ /* ... */ ];
    const onDownloadLanguage = jest.fn();
    const handleDownload = jest.fn();
    const handleCancel = jest.fn(); // mock onCancel

    await act(async () => {
        render(
            <ChooseLanguageModal
                languageList={languageList}
                onDownloadLanguage={onDownloadLanguage}
                onDownload={handleDownload}
                onCancel={handleCancel} // 将mock函数传递给onCancel
            />
        );
    });

    const cancelButton = screen.getByText('Cancel');
    fireEvent.click(cancelButton);

    expect(handleCancel).toHaveBeenCalled(); // 期望被调用
});

import React from 'react';
import { Button, Modal, ModalFooter } from 'react-bootstrap';
import ReactDOM from 'react-dom';

import Select from 'controls/Select/Select';
import { getModalRoot } from 'sd/components/layout/admin/forms/FvReplaceFormModal/helpers';
import { DOWNLOAD_BUTTON_TEXT, CANCEL_BUTTON_TEXT } from 'sd/constants/ModalWindowConstants';

import 'sd/components/layout/admin/forms/FvReplaceFormModal/style.scss';
import type { SelectOption } from 'shared/types/General';

const { Body: ModalBody, Header: ModalHeader, Title: ModalTitle } = Modal;

export interface ChooseLanguageModalProps {
    languageList: SelectOption[];
    onDownloadLanguage: (value?: string) => void;
    onDownload: () => void;
    onCancel?: () => void; // onCancel 属性
}

const HEADER_TITLE = 'Choose language page';
const CHOOSE_LANGUAGE_LABEL = 'Choose language';

export const ChooseLanguageModal = (props: ChooseLanguageModalProps) => {
    // 从props中解构出 languageList 和 onCancel
    const { languageList, onCancel } = props;

    const onChangeLanguage = (value?: string | undefined) => {
        const { onDownloadLanguage } = props;
        onDownloadLanguage(value);
    };

    const handleCancel = async () => {
        // 在此处调用 onCancel 回调
        onCancel && onCancel(); // 确保onCancel存在时才调用，因为它是可选的
        await hideChooseLanguageModal();
    };

    const handleDownload = async () => {
        const { onDownload } = props;
        onDownload();

        await hideChooseLanguageModal();
    };

    return (
        <Modal
            show
            backdrop="static"
            animation={false}
            container={getModalRoot()}
            onHide={() => hideChooseLanguageModal()}
        >
            <ModalHeader closeButton>
                <ModalTitle>{HEADER_TITLE}</ModalTitle>
            </ModalHeader>
            <ModalBody>
                <div>
                    <p>This project has one or more languages set up in the Translation Manager.</p>
                    <p>
                        To download the translation in the BRD export, select one language from the drop-down below.
                        English will always be shown as the base language.
                    </p>
                    <p>
                        If a language is selected, additional columns will be added to display the appropriate
                        translation for labels, rules and text messages.
                    </p>
                    <p>You may click Download without selecting a language to export the default language.</p>
                </div>
                <div>{CHOOSE_LANGUAGE_LABEL}</div>
                <div>
                    <Select
                        clearable={false}
                        canEnterFreeText={false}
                        searchable={false}
                        options={languageList}
                        onChange={onChangeLanguage}
                    />
                </div>
            </ModalBody>
            <ModalFooter>
                <Button bsStyle="primary" onClick={handleDownload}>
                    {DOWNLOAD_BUTTON_TEXT}
                </Button>
                <Button onClick={handleCancel}>{CANCEL_BUTTON_TEXT}</Button>
            </ModalFooter>
        </Modal>
    );
};

export async function showChooseLanguageModal(props: ChooseLanguageModalProps): Promise<void> {
    await ReactDOM.render(<ChooseLanguageModal {...props} />, getModalRoot());
}

export async function hideChooseLanguageModal(): Promise<void> {
    const modalRoot = getModalRoot();
    modalRoot && ReactDOM.unmountComponentAtNode(modalRoot);
}