I have a fairly simple viewComments component and I wrote unit test for that component

const viewHistory = () => {
    return (
        render(
            <Router history={history}>
                <Provider {...rootStore()}>
                    <ViewComments {...data}/>
                </Provider>
            </Router>
        ))
}

There is a pluginStore file which will initialize required object (rootStore) and send

import { COMMON } from '../common/constants/stores';
import { CommonStore } from './common/commonStore';
import { CommonState } from '../models/commonState';

export function pluginStores(
    commonState: CommonState,
) {
    const commonStore = new CommonStore(commonState);
    return {
        [COMMON]: commonStore,
    };
}

export function rootStore() {
    const commonStore = new CommonStore(new CommonState);
    return {
        [COMMON]: commonStore,
    };
}

export class RootStore {
    commonState: CommonState;
    commonStore: CommonStore;

    constructor() {
        this.commonState = new CommonState();
        this.commonStore = new CommonStore(this.commonState);
    }
}

but upon running the test i am getting typeError

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