Feathers-tests-fake-app-users NPM

feathers-tests-fake-app-users

Fake some Feathers dependencies in service unit tests. Starter for your own customized fakes

Fake app and database services such as users.

Code Example

The following example is from test/example.js. It may be run with npm run test:only.

In this example we want to perform some unit tests on feathers-service-verify-reset's resend method, so we need to fake its Feathers dependencies app and users. We would be running integration tests if we used Feathers' actual app and users, and such tests would be more complicated.

const feathersFakes = require('feathers-tests-fake-app-user');
const verifyResetService = require('feathers-service-verify-reset').service;
const testUsersDb = [ // faked in-memory database
  { _id: 'a', email: 'a', isVerified: false, verifyToken: '000', verifyExpires: Date.now() + 5000 },
];

describe('verifyReset::resend', () => {
  var db, app, users, verifyReset;

  beforeEach(() => {
    db = clone(testUsersDb);
    app = feathersFakes.app(); // stub Feathers app
    users = feathersFakes.makeDbService(app, 'users', db); // mock users service
    app.use('/users', users);
    app.configure(verifyResetService());
    
    // Internally verifyResetService() attaches itself as a service with
    // app.use('/verifyReset/:action/:value', {...});
    // So now we get a handle to that service
    verifyReset = app.service('/verifyReset/:action/:value');
  });

  it('updates unverified user', (done) => {
    const email = 'a';
    verifyReset.create({ action: 'resend', value: email }, {}, (err, user) => {
      assert.strictEqual(err, null, 'err code set');

      // Check user record modified as expected
      assert.strictEqual(user.isVerified, false, 'isVerified not false');
      assert.isString(user.verifyToken, 'verifyToken not String');
      assert.equal(user.verifyToken.length, 30, 'verify token wrong length');

      // Check database record is identical
      assert.deepEqual(user, db[0]);

      done();
    });
  });
});

Motivation

It can be difficult to fake dependencies when running unit tests. This package provides fakes for the most common dependencies in a Feathers' project.