Jest - How To Trigger onError() Method In Apollo Client Instance?

Help
,
1

I have the following method that creates and returns an instance of the Apollo React Client:

export default function createGraphQlClient(url: string) {
  return new ApolloClient({
    cache: new InMemoryCache(),
    connectToDevTools: true,
    link: ApolloLink.from([
      new HttpLink({
        uri: url,
        credentials: 'include',
      }),
      onError(({ graphQLErrors, networkError }) => {
        sendError(url, graphQLErrors, networkError);
      }),
    ]),
  });
}

In my Jest test file for this function, I’d like to trigger the onError callback function that’s passed in above. How do I go about doing this?