inventory.test.js

it("should be calculated with estimateShipping based on the price and weight", async () => {
    const PRICE = 999;
    const WEIGHT = 100;
    const mocks = { Product: () => ({ price: PRICE, weight: WEIGHT }) };

    td.when(estimateShipping({ price: PRICE, weight: WEIGHT })).thenReturn(99);

    const result = await executeGraphql({
      query,
      service,
      mocks
    });

    expect(result.data._getProduct.shippingEstimate).toEqual(99);
});