React Native PayModal 组件 Jest 单元测试用例

import React from 'react';
import { shallow } from 'enzyme';
import PayModal from '../PayModal';

describe('PayModal', () => {
  let wrapper;

  beforeEach(() => {
    wrapper = shallow(<PayModal />);
  });

  it('should render correctly', () => {
    expect(wrapper).toMatchSnapshot();
  });

  it('should call _handleBack method when onClose is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_handleBack');
    instance.onClose();
    expect(instance._handleBack).toHaveBeenCalled();
  });

  it('should call _handleAppStateChange method when AppState change', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_handleAppStateChange');
    instance._handleAppStateChange('active');
    expect(instance._handleAppStateChange).toHaveBeenCalledWith('active');
  });

  it('should call doWhileGetPayResult method when _handleAppStateChange is called with nextAppState as \'active\'', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, 'doWhileGetPayResult');
    instance._handleAppStateChange('active');
    expect(instance.doWhileGetPayResult).toHaveBeenCalled();
  });

  it('should call _checkPay method when doWhileGetPayResult is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_checkPay');
    instance.doWhileGetPayResult();
    expect(instance._checkPay).toHaveBeenCalled();
  });

  it('should call _fetchData method when _checkPay is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance._checkPay();
    expect(instance._fetchData).toHaveBeenCalled();
  });

  it('should call _fetchData method when _handleBack is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance._handleBack();
    expect(instance._fetchData).toHaveBeenCalled();
  });

  it('should call _handleAppStateChange method when _handleOnClose is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_handleAppStateChange');
    instance._handleOnClose();
    expect(instance._handleAppStateChange).toHaveBeenCalled();
  });

  it('should call _handleAppStateChange method when show is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_handleAppStateChange');
    instance.show({});
    expect(instance._handleAppStateChange).toHaveBeenCalled();
  });

  it('should call _fetchData method when show is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance.show({});
    expect(instance._fetchData).toHaveBeenCalled();
  });

  it('should call _fetchData method when _handleNetResult is called', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance._handleNetResult({});
    expect(instance._fetchData).toHaveBeenCalled();
  });

  it('should call _fetchData method when _handlePayResult is called with code as 6001', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance._handlePayResult({ code: 6001 });
    expect(instance._fetchData).toHaveBeenCalled();
  });

  it('should call _fetchData method when _handlePayResult is called with code as -1', () => {
    const instance = wrapper.instance();
    jest.spyOn(instance, '_fetchData');
    instance._handlePayResult({ code: -1 });
    expect(instance._fetchData).toHaveBeenCalled();
  });

  // ... more test cases
});