Step 15: Add sample bookmarks

In order to tests the /bookmarks endpoints, we need to add some sample bookmarks. Let’s expose the Bookmark DAO object used by the route handlers, first. To that aim, update src/routes/bookmarks.js by adding an export keyword before the bookmarkDao declaration :

export const bookmarkDao = new BookmarkDAO();

Moreover, we will need a handy operation to delete all the sample bookmarks. So, update src/data/BookmarkDAO.js by adding the following operation:

deleteAll() {
  this.bookmarks = []
}

Now, update tests/routes/bookmakrs.test.js as follows to add five sample bookmarks before each test:

import { describe, it, expect, beforeEach } from "vitest";
import app from "../../src/index.js";
import supertest from "supertest";
import { faker } from "@faker-js/faker";
import { bookmarkDao } from "../../src/routes/bookmarks.js";

const request = new supertest(app);

describe("Test API /bookmarks endpoints", () => {
  const numBookmarks = 5;

  beforeEach(() => {
    bookmarkDao.deleteAll();
    for (let index = 0; index < numBookmarks; index++) {
      bookmarkDao.create({
        title: faker.lorem.sentence(),
        url: faker.internet.url(),
      });
    }
  });

  it("GET all bookmarks", async () => {
    const response = await request.get("/bookmarks");
    expect(response.status).toBe(200);
    expect(response.body.data.length).toBe(numBookmarks);
  });

  it("POST a bookmark", async () => {});

  it("GET a bookmark given its ID", async () => {});

  it("Update a bookmark given its ID", async () => {});

  it("Delete a bookmark given its ID", async () => {});
});

Save and commit all changes. Also, run the tests in this file to ensure they all pass.