Jest - mock function runs but .toHaveBeenCalledTimes() stays 0

I'm trying to test if the function searchRestaurantsHelper is called when searchRestaurant is called.

The problem is the received number of times is always 0.

Here's the test:

describe('Testing searchRestaurants', () => {
  afterEach(() => {
    jest.clearAllMocks();
  });

  test('searchRestaurantsHelper called once', async () => {
    axios.get.mockImplementationOnce(() => {
      const response = { data: { businneses: ['foo'] } };
      return Promise.resolve(response);
    });

    searchRestaurantsHelper.mockImplementationOnce(() => 'foo');

    await Yelp.searchRestaurants({
      what: 'tacos',
      where: 'rome',
      sortBy: 'rating',
    });

    expect(searchRestaurantsHelper).toHaveBeenCalledTimes(1);
  });

// other tests
}

I create an axios mock since searchRestaurants wouldn't run searchRestaurantsHelper if response.data.businesses.length === 0. Then I create a mock function for searchRestaurantsHelper but apparently it's not being called.

Here's searchRestaurants()

const Yelp = {
  // Returns restaurant search resuts

  async searchRestaurants(text) {
    try {
      let response = await axios.get(
        `https://cors-anywhere.herokuapp.com/https://api.yelp.com/v3/businesses/search?limit=12&term=${text.what}&location=${text.where}&sort_by=${text.sortBy}`,
        {
          headers: {
            Authorization: `Bearer ${YELP_API_KEY}`,
            'X-Requested-With': 'XMLHttpRequest',
            'Access-Control-Allow-Origin': '*',
          },
        }
      );

      if (response.data.businesses.length === 0) {
        return [];
      }

      return searchRestaurantsHelper(response);
    } catch (e) {
      console.log(e);
    }
  },
}

And searchRestaurantsHelper()

export const searchRestaurantsHelper = (response) =>
  response.data.businesses.map((business) => {
    return {
      id: business.id,
      image: business.image_url,
      name: business.name,
      url: business.url,
      price: business.price,
      phone: business.phone,
      categories: business.categories[0].title,
      address: business.location.display_address[0],
    };
  });

Can anyone explain to me what I'm doing wrong? I've been stuck for a while... Thanks for your help!