Encountering an error while writing unit tests in React using Jest and Enzyme. The error message states: "ReactWrapper::state() can only be called on class components".
import React from 'react';
import { mount } from 'enzyme';
import expect from 'expect';
import CustomerAdd from '../CustomerAdd'
import MUITheme from '../../../../Utilities/MUITheme';
import { ThemeProvider } from '@material-ui/styles';
describe('<CustomerAdd />', () => {
const wrapper = mount(
<ThemeProvider theme={MUITheme}>
<CustomerAdd {...mockProps}></CustomerAdd>
</ThemeProvider>
);
test('something', () => {
expect(wrapper.find(CustomerAdd).state('addNewOnSubmit')).toEqual(true);
});
});
The code snippet above suggests that the CustomerAdd Component is a class component. I am unsure of what is causing the issue with my code. Any assistance in resolving this problem would be greatly appreciated. Thank you.