lgandecki

//Remember to add this require
const { estimateShipping } = require("./estimateShipping");

exports.resolvers = {
  Product: {
    __resolveReference(object) {
      return {
        ...object,
        ...inventory.find(product => product.upc === object.upc)
      };

lgandecki

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,

lgandecki

const td = require("testdouble");
require("testdouble-jest")(td, jest);
const { gql } = require("apollo-server");
const { executeGraphql } = require("federation-testing-tool");

// This is the added line! Make sure it's above the line that requires resolvers.
const { estimateShipping } = td.replace("./estimateShipping");
// 

const { typeDefs } = require("./typeDefs");

lgandecki

// Put these two lines at the top of inventory.test.js
const td = require("testdouble");
require("testdouble-jest")(td, jest);

lgandecki

exports.estimateShipping = ({price, weight}) => {
};

lgandecki

  it("should be calculated as 1 dollar per 2 pounds for an item with a price of 1000 or below", async () => {
    const mocks = { Product: () => ({ price: 999, weight: 100 }) };

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

    expect(result.data._getProduct.shippingEstimate).toEqual(50);
  });

lgandecki

  it("should be 0 for an item with a price over 1000", async () => {
    const mocks = { Product: () => ({ price: 1001 }) };
    
    const result = await executeGraphql({ query, service, mocks });
    
    expect(result.data._getProduct.shippingEstimate).toStrictEqual(0);
  });

lgandecki

const { executeGraphql } = require("federation-testing-tool");
// ...

// Modify your first it.todo function callback, and remove .todo
  it("should be 0 for an item with a price over 1000", async () => {
    const result = await executeGraphql({ query, service });
    expect(result.data._getProduct.shippingEstimate).toEqual(0)
  });

lgandecki

const { gql } = require("apollo-server");

const { typeDefs } = require("./typeDefs");
const { resolvers } = require("./resolvers");

const service =  { typeDefs, resolvers }

// describe("Based on the data passed down from the gateway, the shippingEstimate", () => {
// ..

lgandecki

const { gql } = require("apollo-server");

describe("Based on the data passed down from the gateway, the shippingEstimate", () => {
  const query = gql`
    {
      _getProduct {
        shippingEstimate
      }
    }
  `;