测试使用context.consumer的React-native组件-Jest

Question

我使用react context API在应用程序中设置全局主题。我正在尝试测试使用<ThemeContext.Consumer>的组件。 这是我在组件中使用它的方式：

<ThemeContext.Consumer>
              {({toggleTheme}) => (
                <SettingsOption
                  iconName="color-lens"
                  optionName={goTheme}
                  actionType="arrow"
                  handleAction={() => this.handleAppTheme(toggleTheme)}
                  showNewLabel={true}
                />
              )}
            </ThemeContext.Consumer>

单元测试是这样的：

import 'react-native';
import React from 'react';
import renderer from 'react-test-renderer';

import Settings from 'containers/Settings'; // to get redux connected component import Setting without {}
import {shallow, configure} from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
import configureStore from 'redux-mock-store';
import {Provider} from 'react-redux';

import {ThemeContext} from '../../App';
import {lightTheme} from 'reduxStore/reducers/themeReducer';

configure({adapter: new Adapter()});
const mockStore = configureStore([]);

describe('testing render', () => {
  const store = mockStore({
    appTheme: {lightTheme},
    appUse: {useNumber: 0},
  });
  const fakeNavigation = {
    navigate: jest.fn(),
    setParams: jest.fn(),
    addListener: jest.fn(),
  };
  it('Does Settings renders correctly?', () => {
    const tree = renderer
      .create(
        <ThemeContext.Provider value={{theme: 'light', toggleTheme: jest.fn()}}>
          <Provider store={store}>
            <Settings
              navigation={fakeNavigation}
              t={(key) => key}
            />
          </Provider>
          ,
        </ThemeContext.Provider>,
      )
      .toJSON();
    expect(tree).toMatchSnapshot();
  });
});

我得到的错误是这样的：

请注意，如果我评论组件和测试中所有对上下文的使用，则测试通过了

谢谢