user.js

process.env.NODE_ENV = "test";
const app = require("../app");
const chai = require("chai");
const request = require("supertest");
const expect = chai.expect;

const mongoose = require("mongoose");
process.env.TEST_SUITE = "testdb";
beforeEach(async () => {
  if (mongoose.connection.readyState === 0) {
    const options = {
      useNewUrlParser: true,
      autoIndex: false, // Don't build indexes
      reconnectTries: 30, // Retry up to 30 times
      reconnectInterval: 500, // Reconnect every 500ms
      poolSize: 10, // Maintain up to 10 socket connections
      // If not connected, return errors immediately rather than waiting for reconnect
      bufferMaxEntries: 0
    };
    const dbConnection = mongoose.connect(
      `mongodb://localhost:27017/${process.env.TEST_SUITE}`,
      options,
      function(err) {
        if (err) {
          throw err;
        }
        clearDB();
      }
    );
  } else {
    clearDB();
  }
});

function clearDB() {
  for (var i in mongoose.connection.collections) {
    mongoose.connection.collections[i].deleteMany();
  }
}

describe("User Endpoint", () => {
  describe("GET /users", () => {
    it("login required", async () => {
      const userList = await request(app).get("/users");

      expect(userList.status).to.eql(401);
    });
  });

  describe("GET /users", () => {
    it("should give user list against proper authentication", async () => {
      const newUser = await request(app)
        .post("/users")
        .send({ userName: "testUser", password: "test123456" });

      const authenticatedUser = await request(app)
        .post("/auth")
        .send({ userName: "testUser", password: "test123456" });
      let token = authenticatedUser.body.data.token;

      const userList = await request(app)
        .get("/users")
        .set("Authorization", `Bearer ${token}`);

      expect(userList.body.success).to.be.true;
    });
  });

  describe("POST /users", () => {
    it("should create a new user", async () => {
      const resp = await request(app)
        .post("/users")
        .send({
          userName: "testUser",
          name: "Mr. Test User",
          password: "test123456",
          age: "27",
          email: "test@mail.com",
          sex: "M",
          type: "admin",
          status: "active"
        });
      expect(resp.status).to.eql(200);
      expect(resp.body.success).to.be.true;
      expect(resp.body.data).to.have.property("_id");
      expect(resp.body.data.userName).to.eql("testUser");
    });
  });
});

afterEach(() => {});

after(async () => {
  mongoose.disconnect();
});